Rosin Modified Phenolic Resin: Commentary and Critical Overview
Historical Development
Across the last century, plenty of chemists spent their days cooking up new ways to improve everyday products. Rosin modified phenolic resin didn't pop up out of nowhere. The story starts with adhesive makers eyeing natural resins to stretch the performance of basic phenolic resins. Early on, carriers of turpentine—tapping pine trees in forests from the Carolinas to Siberia—provided rosin. Labs in North America and Europe experimented with mixing rosin acids into phenol-formaldehyde recipes. These early blends hit the market as commercial varnishes and laminates in the mid-1900s. Before World War II, the search for strong, weather-tough binders for plywood and tires kept these chemists busy. Phenolic resin alone brought toughness, but it was too brittle on its own for some tasks. Rosin brought flexibility and sticky performance, setting the stage for a new class of resoles and novolacs. Stories in the trade press and old patents show every era wanted a nicer-smelling, faster-setting adhesive or coating. Supply chains shifted from massive turpentine distilleries in the Deep South to more refined oil-based chemistries, but natural rosin still mattered. Today, even as the world runs more on petroleum, the roots of this resin trace back to pine forests and pioneers in organic chemistry.
Product Overview
Rosin modified phenolic resin stands out as a hard, almost amber solid. In its original form, it's not much to look at—chunks, beads, or granules with a glassy sheen and a faint pine scent. The stuff feels brittle, snapping under pressure, but it melts into a viscous syrup when heated. The rosin part comes from pine trees, while the phenolic backbone forms through reacting phenol with formaldehyde. This hybrid brings out unique strengths—a sticky bite when warm, a rigid grip when cool, and a chemical backbone that stands up to tough environments. Some versions add alkylphenols or use different rosin grades to tweak melting points or flow. The resin finds its way into varnishes, adhesives, rubber products, and inks. You’ll spot it wherever engineers need to balance tack, strength, and weather resistance in something that can be mass produced. In over a decade tinkering with these blends, I noticed the best results come from judging the resin’s color, smell, and how it sets under heat, not just reading numbers off a spec sheet.
Physical & Chemical Properties
Anyone who’s handled rosin modified phenolic resin knows the value of hands-on testing. In solid form, it feels slick but breaks easily under force. Most samples look like translucent, glassy amber. It melts between 80 and 130°C, depending on the rosin and phenolic ratios. Solubility depends on your solvent—alcohols and acetone can cut it, hydrocarbons like toluene dissolve the less polar samples. Chemically, the resin builds a dense, crosslinked network that resists acids and bases to a point, but long exposure wears it down. Standard grades test for softening point, color (Gardner scale), acid number, and molecular weight (GPC or estimated by viscosity). The high aromatic content and ester groups from rosin acids give this resin a signature bite—strong adhesion, especially under heat and pressure. Common impurities include free phenol and unreacted rosin acids, both of which show up in smell and performance if the cook wasn’t careful. I ran into batches years back where sloppy reaction control left sticky, smelly resins that failed in hot climates.
Technical Specifications and Labeling
Suppliers slap on technical sheets listing softening point (typically 95–125°C), acid value, color, specific gravity (around 1.0–1.1), and compatibility. For coatings, technicians judge flow by melt viscosity (a few hundred to a few thousand cps at 150°C). Rubber grades often quote a higher softening point and chew resistance. Quality control clocks in with tests for ash content, residual formaldehyde, and moisture, since poor drying triggers foaming or weak points. Safety data labels spell out hazards—low volatility overall, but concentrated dust can irritate skin or lungs. Most countries use the Harmonized System (HS) code for international shipping paperwork. I’ve seen importers get tripped up by small changes in rosin/phenol percentages, so consistency matters for customs as well as product quality.
Preparation Method
Manufacturers crowd chemical reactors with phenol, formaldehyde, and freshly distilled rosin, sometimes charging them stepwise to control runaway reactions. Classic cooks use acid or base catalysts, adjusting time and temperature to coax the best from both the rosin and phenolic sides. Steam-stripping removes excess formaldehyde and light volatiles. Skilled operators cool, flake, or bead the resin depending on customer orders. The real artistry comes in blending—deciding when to add the rosin and how long to cook, since overcooking ruins flexibility, and undercooking leaves unreacted monomers. Tightly run plants invest in real-time viscosity and pH controls. Sloppy batch controls lead to products that vary from month to month. One plant I visited trimmed waste by capturing off-gases from the kettle, but older facilities sometimes vent straight to air, which brings environmental headaches. Most modern lines aim for closed processes for both safety and regulatory reasons.
Chemical Reactions and Modifications
Every chemist eventually learns that rosin and phenol don’t just mix; they react at specific sites. Phenol and formaldehyde form a rigid, heat-cured network through methylene bridges. Rosin steps in with its carboxylic groups, forming esters and shifting the balance toward toughness or flexibility. On purpose, some chemists modify the backbone by partial hydrogenation or add block co-monomers for better heat or chemical resistance. The basic condensation reaction already pulls energy, but tweaks in pressure or catalyst can shift the product toward specific performance needs. Trace components, like abietic acid in rosin, feed side reactions—sometimes good, sometimes a mess. In the lab, I found adding alkylation steps opens the door for resins suited to powder coatings. Industrially, smart tweaks let a manufacturer adjust product lines without a wholesale retooling of equipment.
Synonyms and Product Names
Across the world, a chemist or a buyer might spot this material under different names—rosin-phenol resin, pine phenolic, or even "modified phenolic binder." Trademarked versions from big companies like Arakawa, Kolon, or Arnaud might use letters and numbers—KE-100, SP-1055, or similar. The harmonized system codes or CAS numbers stay the same, but brand names show up on drums and paperwork. These alternate names sometimes confuse importers or buyers, especially where language or regulatory rules differ. I remember one deal where a translation slip between “rosin modified phenolic” and “phenolic-rosin copolymer” led to a costly customs mix-up.
Safety and Operational Standards
Rosin modified phenolic resin doesn't rank among the most hazardous chemicals, but mishandling it can sting. Processing dust can irritate lungs or skin. Melting the resin generates fumes that can contain trace phenol or formaldehyde byproducts—both well-known irritants and regulated substances. Many countries set occupational exposure limits for phenol at 19 mg/m³ air. Plant techs work with gloves and dust masks, and careful ventilation is a must around kettles. Older production lines often lack the closed-loop controls seen in newer plants, putting workers and the local community at risk. Strict batch logbooks, emission monitoring, and air filtration systems aren’t optional; they mark the difference between a modern, responsible operation and a regulatory time bomb. Emergency guidelines demand eyewashes and shower stations. Responsible operators train staff in quick clean-up, correct drum labeling, and periodic audit drills. The closer a facility hews to international standards like ISO 9001 or local chemical safety codes, the less downtime and fewer worker complaints.
Application Area
Rosin modified phenolic resin claims its place across dozens of end uses. Tire manufacturers use it in tread adhesives—helping rubber stick to steel cords. Varnish makers count on its high-temperature stability and glossy finish, especially in marine- or outdoor-grade coatings. Road-making teams blend it into thermoplastic paints to help road stripes last through winter and summer. In printing ink, it delivers crisp, high-gloss lines that set fast and resist smudging, crucial for packaging and glossy magazines. I’ve seen factories using it for brake pads, where friction and heat chew up weaker resins. In electronics, resins with tweaked electrical properties seal circuit boards and capacitors. A few niche producers even push these resins into musical instrument finishes, where durability and warm tone meet. The versatility reflects a balancing act—toughness from the phenolic, flexibility from the rosin, and a chemical network proven across industries.
Research & Development
Researchers stay busy pushing the limits of what this resin can do. Over the last decade, a big focus shifted toward greener, bio-based sources—tapping plantations and waste streams for upscale rosin while cutting formaldehyde emissions. Teams experiment with new catalysts that lower reaction temperatures, saving energy and cutting side products. Universities publish work on nano-reinforced versions, squeezing in silica or graphene for electronic or aerospace demands. Some labs chase after faster-cure systems for 3D printing or composite making, looking to boost speed without giving up properties. Others explore blends with recycled plastics or natural waxes to hit sustainability targets. After years working alongside material scientists, I learned keeping a clear feedback loop with customer labs often uncovers practical tweaks—for both process and product—that university research might never catch.
Toxicity Research
Rosin modified phenolic resin brings some concerns, mostly thanks to its ingredients. Phenol and formaldehyde both show low-level toxicity on their own; the finished resin locks up most of the free monomer, but trace amounts still matter. Studies show that inhaling the dust repeatedly can trigger skin rashes, respiratory irritation, or—rarely—sensitization. Environmental studies examine breakdown products, noting that old road paint flakes or tire wear can add chemicals to waterways. Regulatory agencies like OSHA and the European Chemicals Agency list these as substances to handle with care—labeling, ventilation, and proper disposal stay key. I saw one outfit invest in a state-of-the-art scrubber when neighbors—complaining of acrid smells—prompted a health investigation. As rules tighten worldwide, manufacturers push for better data, more engineered controls, and greater transparency. Current research eyes chronic effects, environmental buildup, and options to track recycled material flows.
Future Prospects
As green tech takes center stage, the future of rosin modified phenolic resin rides on sustainable sourcing and lower emissions. Companies invest in cleaner rosin harvesting and look for biobased formaldehyde substitutes. Customers across automotive, construction, and packaging ask for recycled content and traceable supply chains. Smart operators bet on automation and AI-driven batch controls to cut waste. Emerging markets look for better access but demand technology transfers that prevent old-school waste. Tomorrow’s R&D teams mix analytics with hands-on plant experience to drive down off-spec batches. Standards organizations tighten quality grades to lock out older, polluting forms. As energy costs swing, process tweaks that save a few degrees on the reactor or shorten cook times by a few minutes pay big dividends. Big-picture, the resin’s role in high-performance adhesives, inks, and coatings looks set for a long run, especially if the sector manages to keep its natural base while trimming the impact of fossil-based chemicals.
What You Find Under the Label
Rosin modified phenolic resin goes into a surprising number of products you see and use every day. At its core, this resin blends phenol and formaldehyde with natural rosin, creating a versatile material with sticky, protective, and tacky properties. Manufacturers look to this resin when they want something that holds things together but also stands up to heat, chemicals, and the wear of daily use.
Sticking Power in Adhesives and Tapes
One of the biggest uses comes from the need for strong, reliable glue. Pressure-sensitive adhesives, such as those in labels, packaging tape, and masking tape, rely on this resin for stickiness that holds but doesn’t leave a mess behind. The resin gives the adhesive the right balance—gripping well but still peeling off when you need it. Graphic arts and printing circles have counted on this compound for decades to anchor ink or film onto surfaces cleanly. Industries see credits like this as a cost-saver and a time-saver.
Making Tires that Last and Perform
If you look at tires from every major brand, you’ll find rosin modified phenolic resin in the rubber compounds. Tire makers use it because it boosts grip and resilience, meaning cars and trucks stick better to the road in both dry and wet weather. Better grip leads to safer driving. It also helps the rubber last longer under heavy stress and temperature swings—important when that tire might carry thousands of pounds at 70 miles per hour. Racing teams and everyday drivers both benefit from these properties.
Enhancing the Look and Strength of Printing Inks and Paints
In printing and coatings, this resin is valuable for how it interacts with pigments and dyes. It lets colors pop on the page, boosting both brilliance and staying power. The film it forms shields lettering and artwork from smudges, water, and fading sunlight. Printers want results that don’t bleed or blur, and this resin delivers—especially on packaging or labels that get handled often. Paint makers count on the resin when they want coatings that dry faster and resist scratching or chipping.
Boosting Other Everyday Products
Rosin modified phenolic resin finds smaller but important roles in electronics, soldering, and even some sports goods. In circuit boards, the resin helps insulate wires and parts, fighting off moisture and heat to keep electronics running longer. Soldering pastes use the resin to clean and protect metal surfaces during assembly, securing better electrical connection. Table tennis paddles and bowling balls pick up tackiness from it as well, which means more control for players and better game performance.
Why Manufacturers Trust It
Companies stick with this resin for many reasons. It offers a good balance of cost, performance, and supply stability. The base ingredients—phenol, formaldehyde, and rosin—remain widely available. Production methods are proven, and the resin performs consistently across batches. As markets push for faster output and higher durability, this resin keeps pace, helping brands meet demanding expectations.
Looking for Greener Options? Here’s What’s Possible
While the resin works, some are searching for cleaner ways to make it. Rosin comes from pine trees, a renewable source, but the petrochemical phenol and formaldehyde raise questions. Research teams experiment with plant-based phenols, looking to keep performance high while slashing carbon footprints and hazardous byproducts. That shift isn’t easy, but it reflects how customers and regulators now expect safer chemicals and lower emissions in finished goods.
Final Thoughts
From tape and tires to paints and electronics, rosin modified phenolic resin finds its way into plenty of products you use, drive, or touch. Whether helping tires keep their grip or making a label stay put, the resin answers needs you might not see at first glance. As industry standards change, the story of this material stays tied to everyday life and the effort to make better, safer, and more lasting products.
What Sets Rosin Modified Phenolic Resin Apart
Rosin modified phenolic resin isn’t just another chemical additive. Anyone who has ever worked with adhesives, coatings, or rubber knows you need something you can count on in the harshest jobs. This resin brings a blend of toughness from phenolic compounds and sticky, flexible attributes pulled straight from natural rosin. Both woodworkers and folks in heavy industry see the benefit when their products need to last, stick strong, and hold up under stress.
Tackiness and Adhesion Strength
As someone who has spent time in a woodworking shop, poor adhesion wastes time and resources. Rosin modified phenolic resin solves that headache because it grabs onto surfaces and hangs on. This material doesn’t peel away with a change in humidity or shrink with seasonal weather swings. Shoes, tires, plywood — many products need adhesives that won't let go. Tests in real-world production show that adding the resin to adhesives helps produce a firmer, longer-lasting bond that stands up under repeated stress. That’s good news for manufacturers tired of weak glue and failed seals.
Chemical Resistance and Durability
Chemical spills happen. So do oil leaks and unexpected splashes around garages and factories. Regular glue will turn soft or break down, but mixes with rosin modified phenolic resin keep their shape far longer. It resists acids, alkalis, and even solvents that chew up ordinary adhesives. Take circuit boards, for example: they get exposed to all sorts of cleaning chemicals and heat. When phenolic resin enters the mix, electronics manufacturers see fewer product failures and longer life on the shelf. This kind of resilience isn’t just a small perk; it saves money and keeps products safer in the hands of consumers.
Thermal Stability
Try holding your product together in summer’s heat or next to an engine’s warmth. Resins that melt or degrade leave you with splitting panels and failed parts. Rosin modified phenolic resin stands up to the heat, handling higher temperatures without cracking or softening. People building brake linings or insulating panels turn to this kind of resin because it won’t buckle under pressure or high temperatures. When things get hot, it keeps holding on.
Hardness and Flexibility Balance
Manufacturers walk a fine line between products that are rock-hard and those that give a little. You want strength, but too much stiffness means brittle results. This resin manages a balance. It combines the rigidity of phenolic compounds with just enough flexibility borrowed from natural rosin. Sandpaper makers appreciate this – their backing needs both toughness and a touch of give. Printing inks also gain better wear and longer print runs thanks to this unique combination.
Sustainability and Future Solutions
Companies everywhere need solutions that meet environmental standards without sacrificing performance. Since rosin comes from pine trees, it qualifies as a renewable resource. Resin suppliers are investing in ways to reduce harmful emissions during production. The market keeps asking for greener, safer chemicals – especially for consumer products. If research continues, expect to see even more sustainable blends that retain all the tough, sticky, durable qualities people have come to expect from this resin.
Getting to the Heart of the Chemistry
I've been around enough adhesives and coatings to know that not all phenolic resins behave the same way. Many basic phenolic resins use only phenol and formaldehyde in their reaction. This mix creates a hard plastic commonly used in wood adhesives, automotive parts, and electrical components. Still, it comes with a few drawbacks — particularly when you need flexibility and better tack in a product.
Where Rosin Makes a Difference
Rosin, a natural substance that comes from pine trees, changes the game when added to phenolic resin. The addition isn’t just a tweak; it brings a new dimension. Rosin introduces carboxylic acids and soft, sticky characteristics, giving the resin increased tackiness and flexibility. Think about trying to glue rubber or trying to keep a tire performing in wet conditions. Regular phenolic resin will crack or lose grip, but with rosin in the mix, the compound grabs better and bends without breaking.
I’ve watched manufacturers in the tire and adhesive space chase this balance for decades. Adding rosin addresses the call for higher tack and stickiness especially important in rubber-based products. Big tire producers rely on that increased grip during processing, making work faster and products tougher in real-world use.
Performance in the Real World
Traditional phenolic resins stay brittle and cold. Rosin modification delivers a warmer, more flexible feel — a stark advantage if you’re making pressure-sensitive adhesives, hot melts, or construction materials semmanding elasticity. Traffic paint, for example, needs to stick fast but must resist dirt and water. The sticky aspect from rosin modification keeps paint lines clearer and longer-lasting.
Besides offering better bonding to rubber, rosin modified phenolic resins also resist weathering more effectively than straight phenolic versions. The rosin part wards off water and many chemicals, extending the life of the glue or coating you’re using.
Sustainability and Market Trends
Many end-users now look for greener alternatives that don't trade away performance. Rosin brings sustainability to the table since it’s tapped from renewable pine trees instead of made in a factory lab from chemical feedstocks. Companies cutting their carbon footprint champion this type of bio-based ingredient. If you run a shop that presses for environmental responsibility, rosin modified phenolic resin offers a genuine path toward greener production — a bold move, considering increased regulations and shifting customer demand.
Addressing Challenges and Finding Solutions
Any product that mixes a natural raw material with a synthetic one faces hurdles. Consistency in rosin quality changes with weather and region, so batch-to-batch variation can challenge manufacturers. I’ve talked with process engineers who fine-tune their formula and work closely with suppliers to keep properties in the sweet spot. Regular testing and tweaking go a long way in getting stable resin batches that hold up under pressure.
Cost sometimes climbs higher compared to standard phenolic resins, because natural materials like rosin fluctuate with harvest cycles. Still, the added performance and greener reputation often justify the added investment, especially for sectors facing tough competition.
Looking Ahead
The industry keeps evolving as regulations shift and new eco-friendly standards roll out. Mixing rosin and phenolic resin keeps manufacturers ahead, allowing them to balance tradition with modern requirements for safer, tougher, and more sustainable materials. Having seen the results on the shop floor, I believe this resin will keep finding new roles each year, as long as the quest for better performance and greener formulas continues.
Printing and Packaging: Holding It All Together
Walk into any print shop, and you’ll see a long list of challenges: color clarity, rub resistance, adhesion. Inks for gravure and flexography use rosin modified phenolic resin to tackle these issues. The resin delivers that extra bit of tack printers look for on labels, cartons, and flexible packaging. Without it, ink might not stick as well, leading to smearing or fading after just a few touches. Brands don't want their logo or product details to smear off during handling or transport, so choosing the right resin becomes a practical business decision, not just a technical one.
Adhesives and Tapes: The Invisible Handshake
Office tape rolls, shipping labels, and masking tape owe much of their sticking power to this resin. It boosts the bond between surfaces and makes adhesives less brittle in cold weather. At home, there's nothing more frustrating than tape that peels up too soon or glue that turns crumbly. The chemistry behind rosin modified phenolic resin builds a stronger, flexible bridge between materials. This means fewer ruined packages and more dependable repairs—small things that save money and headaches down the line.
Rubber and Tire Manufacturing: Getting Traction Where it Counts
Tires need the right grip on pavement. In my time shadowing a production manager at a manufacturing plant, I saw how important resin selection could be. Rosin modified phenolic resin helps natural and synthetic rubber bind with filler ingredients more effectively. The right formula can mean longer tire life and better safety during rain or snow. A strong tire also keeps trucks on the road longer, cutting waste and maintenance bills for logistics companies.
Varnishes and Surface Coatings: More Than Just Shine
Most people notice a glossy wooden table or bright metal railing because of the shine, but the real work goes deeper. These resins offer scratch protection and slow down yellowing from sun exposure. In workshops, furniture makers look for finishes that shield against spills, heat, and everyday wear. Rosin modified phenolic resin plays a supporting role, keeping products looking newer for years. This matters to anyone who values craftsmanship or wants to pass down a family table in good condition.
Electronics: Safeguarding Tiny Circuits
In circuit boards, the risks go beyond moisture. A trusted resin keeps components in place and prevents shorts. I’ve talked with electronics engineers who needed materials that would keep working after years of constant heat from processors and batteries. Rosin modified phenolic resin often fills this gap, providing heat resistance and long-term stability. As devices get smaller and more powerful, making the right choice here can mean the difference between a gadget that lasts and one that dies early.
Paving a Better Road
Many sectors—from print to infrastructure—rely on behind-the-scenes chemistry to solve practical problems. Industry experts often push for safer, cleaner manufacturing. Rosin modified phenolic resin manufacturers now look for bio-based and low-emission options. Choosing responsible suppliers can cut toxins and support better working conditions in factories. The world of resin isn’t flashy, but its impact shows up in reliable products we touch every day.
Why Shelf Life Matters
Plenty of manufacturers rely on rosin modified phenolic resin for making printing inks, adhesives, and varnishes. It’s often taken for granted that this resin will hold up on the shelf, but this topic directly impacts production quality and costs. If a resin batch goes stale, a plant loses money—not just on wasted material, but also on equipment downtime and extra labor for cleanup. So, shelf life isn’t just about chemical stability, but about the way factories keep things running smoothly.
The Numbers Behind Storage
Many producers ship this resin packed in sealed kraft bags, fiber drums, or lined cartons. Under the right conditions, you typically see a shelf life of about 12 months from the date of manufacture. That’s not just guesswork. In my own work, I’ve seen how labs check for softening point, color, and solubility after every few months. Once those start to drift, performance slips in high-profile applications such as gravure inks or electrical varnishes.
What Really Affects the Shelf Life
Heat and humidity are the two big enemies. Anyone who’s spent a summer in a warehouse knows that temperatures can creep well above the ideal range. Once the mercury spikes past 30°C (86°F), the resin can start to clump or its softening point can sink. That throws off mixing and application. Moisture does its own damage over time, pulling water into the packaging and leading to sticky, lumpy product. I once watched a team scrap an entire drum because they thought it would stay dry in the original packaging, only to open it to a mashed, unusable block.
Best Practices from the Field
Store the resin in a cool, dry indoor spot, away from direct sunlight or a warehouse door that swings open to the elements. An air conditioned room isn’t just a luxury—it cuts losses over time. One facility I worked with kept their resin near the loading dock just to save a few steps during production. After three months, they noticed more complaints about inconsistent ink batches and realized sun and humidity had done the damage.
Why Rotation Beats Stockpiling
Stock rotation really pays off. Mark bags and drums with clear dates, then use up the oldest stock first. In high volume environments, crews sometimes forget existing pallets as new stock arrives, creating hidden time bombs for the plant. FIFO (First In, First Out) takes a bit of discipline, but it’s easier than explaining a product recall or returning ruined goods.
What the Science Says
Chemically, rosin modified phenolic resin handles storage reasonably well as long as you follow the basics. Lower storage temperatures (around 20°C) help lock in those key properties. Excessive light or exposure to oxygen can speed up discoloration or even spur slow degradation. Once a package opens, try resealing tightly to keep air and dust out. Testing small samples before critical production runs often catches aging before it spirals out of control.
Simple Solutions Keep You Ahead
Run regular checks on warehouse conditions. Use inexpensive data loggers to keep a record of both temperature and humidity. Train the crew to spot changes in resin texture or smell—there’s no substitute for handling the product daily and catching problems before a chemical analysis even starts. For facilities in hotter regions, invest in climate control. The upfront cost pays off in fewer recipe failures.
Storing rosin modified phenolic resin isn’t rocket science, but attention to detail can save more than just headaches. I’ve found that treating it as a perishable ingredient avoids a lot of downstream trouble—something anyone who’s seen a bad batch gum up a machine will appreciate.
| Names | |
| Preferred IUPAC name | Phenol, polymer with formaldehyde, ester with hydrogenated rosin |
| Other names |
RMP Resin
Rosin-modified phenol formaldehyde resin Rosin phenolic resin Rosin modified phenolic adhesive resin Rosin modified PF resin Modified phenolic resin with rosin |
| Pronunciation | /ˈrɒzɪn ˈmɒdɪfaɪd fəˈniːlɪk ˈrɛzɪn/ |
| Identifiers | |
| CAS Number | 9000-59-3 |
| Beilstein Reference | 3-978 |
| ChEBI | CHEBI:53571 |
| ChEMBL | CHEMBL: CHEMBL1909029 |
| ChemSpider | 25327312 |
| DrugBank | DB14185 |
| ECHA InfoCard | ECHA InfoCard: 10e278af-7c36-4bba-9ef7-8017bb54ca68 |
| EC Number | EC 232-523-7 |
| Gmelin Reference | 84163 |
| KEGG | Compound C06621 |
| MeSH | D020102 |
| PubChem CID | 26937754 |
| RTECS number | WGKXHV9K31 |
| UNII | W6ZR9V9D3T |
| UN number | UN1866 |
| Properties | |
| Chemical formula | C₁₅H₁₆O₂ |
| Molar mass | Molar mass varies; Rosin Modified Phenolic Resin is a polymer with no fixed molar mass. |
| Appearance | Light yellow to brown transparent solid |
| Odor | Faint Aromatic |
| Density | 1.10 g/cm³ |
| Solubility in water | Insoluble |
| log P | log P: 8.8 |
| Vapor pressure | Negligible |
| Acidity (pKa) | Undefined |
| Basicity (pKb) | 7.0 ~ 9.0 |
| Magnetic susceptibility (χ) | 0.94 |
| Refractive index (nD) | 1.57 |
| Viscosity | 140~180 CPS/ 200°C |
| Dipole moment | 3.2 Debye |
| Pharmacology | |
| ATC code | D10AD10 |
| Hazards | |
| GHS labelling | GHS02, GHS07 |
| Pictograms | Flame, Exclamation Mark |
| Signal word | Warning |
| Hazard statements | H317: May cause an allergic skin reaction. |
| Precautionary statements | P210, P261, P280, P305+P351+P338, P337+P313 |
| NFPA 704 (fire diamond) | 2-1-0 |
| Flash point | Above 250°C |
| Autoignition temperature | 250°C |
| LD50 (median dose) | > 2500 mg/kg (Rat) |
| PEL (Permissible) | PEL: Not Established |
| REL (Recommended) | 75-90 |
| Related compounds | |
| Related compounds |
Phenol formaldehyde resin
Rosin Alkyl phenolic resin Epoxy resin Polyvinyl butyral Tackifying resin Hydrocarbon resin Petroleum resin |
