Material Safety Data Sheet for Disproportionated Rosin

Identification

Product Name: Disproportionated Rosin
Chemical Name: Rosin, Disproportionated
Synonyms: Modified Gum Rosin, Hydrogenated Rosin
CAS Number: 8050-09-7
Recommended Use: Adhesives, inks, varnishes, rubber processing
Supplier Information: Manufacturer details, address, contact number, emergency phone
Emergency Contact: Leak or spill response, supplier helpline, poison control
UN Number: 3077 (if applicable, for transport)
Date of Issue: Updated information as per latest regulatory standards

Hazard Identification

Classification: Eye irritation, skin sensitization, environmental hazard
GHS Label Elements: Exclamation mark, hazard symbol, signal word “Warning”
Hazard Statements: Causes skin and eye irritation, may cause allergic skin reaction, toxic to aquatic life
Precautionary Statements: Avoid breathing dust or fumes, wash exposed skin thoroughly, wear protective gloves and eye protection, avoid environmental release
Physical Hazards: Non-flammable solid, releases irritant fumes on thermal decomposition
Health Hazards: Sensitization risk, mild to moderate skin reactions reported, persistent respiratory contact may cause irritation
Environmental Hazards: Harmful to aquatic life with long lasting effects, avoid entry into sewers or waterways

Composition / Information on Ingredients

Chemical Identity: Disproportionated Rosin
Main Ingredient: Hydrogenated resin acids (abietic acid derivatives) – 90-100%
Other Components: Trace modified resin acids, minor impurities (<2%)
Impurities: Low levels of polyterpene resin, organic acids, natural resins
Molecular Formula: Variable, primarily C20H30O2
Non-Hazardous Ingredients: No significant amounts
CAS Number: 8050-09-7 (main component)

First Aid Measures

General Advice: Remove contaminated clothing, rinse affected area immediately
Inhalation: Move person to fresh air, seek medical attention if symptoms persist, provide support for breathing as needed
Skin Contact: Wash with soap and water for at least 15 minutes, monitor for signs of sensitization or irritation, obtain medical advice if reaction occurs
Eye Contact: Flush eyes with plenty of water for at least 15 minutes, lift eyelids occasionally, seek immediate medical care for persistent discomfort
Ingestion: Rinse mouth with water, do not induce vomiting, call physician or poison control center if symptoms develop
Most Important Symptoms: Itching, redness, rash, eye stinging or burning sensation
Notes to Physician: Treat symptomatically, monitor for allergic responses

Fire-Fighting Measures

Suitable Extinguishing Media: Use foam, dry chemical, CO2, or water spray. Water may be ineffective for large fires.
Unsuitable Media: Direct water streams may spread molten product
Specific Hazards: Produces carbon monoxide, carbon dioxide, and irritating smoke when burned
Firefighter Protection: Wear self-contained breathing apparatus, chemical protective clothing
Special Procedures: Cool exposed containers, prevent runoff from entering sewers or watercourses
Combustion Products: Smoke, irritating organic vapors, carbon oxides
Flash Point: Greater than 200°C (392°F)
Explosion Limits: Not explosive under normal conditions, dust accumulation may pose risk

Accidental Release Measures

Personal Precautions: Avoid contact with skin and eyes, use personal protective equipment
Environmental Precautions: Prevent product from reaching water systems, soil, or drains
Methods for Cleaning Up: Sweep up spilled material, collect in suitable containers for disposal, ventilate area
Decontamination: Wash area with water and detergent after cleanup
Disposal: Follow local, regional, and national guidelines for chemical waste
Emergency Measures: Restrict area access, notify local authorities if significant release
Reporting Requirement: Comply with environmental agency notification if spill exceeds threshold

Handling and Storage

Handling: Use with adequate ventilation, avoid generating dust, avoid prolonged or repeated skin contact, wear suitable gloves and eye protection
Storage: Store in cool, dry, well-ventilated area away from heat, flame, and incompatible materials
Packaging: Use original tightly closed containers
Incompatibilities: Avoid strong oxidizers, acids, and alkalis
Hygiene Measures: Wash hands before breaks and after use, remove contaminated clothing and protective equipment before entering eating areas
Storage Conditions: Maintain temperatures below 50°C (122°F), protect from moisture and sunlight
Specific Storage Requirements: Store away from direct sunlight or heat sources to prevent softening

Exposure Controls and Personal Protection

Exposure Limits: No established ACGIH or OSHA exposure limits; minimize exposure to airborne dust or fumes
Engineering Controls: Install local exhaust or general ventilation as required, implement dust control measures
Personal Protective Equipment:

• Respiratory Protection: NIOSH-approved mask if dust or fumes exceed recommended levels
• Hand Protection: Chemical-resistant gloves (nitrile, neoprene)
• Eye Protection: Chemical safety goggles, face shield as needed
• Skin Protection: Protective clothing to prevent contact

Physical and Chemical Properties

Appearance: Pale-yellow to amber, brittle solid, resinous form
Odor: Mild pine or resin odor
Odor Threshold: Not established
pH: Not applicable (insoluble in water)
Melting Point: 70–95°C (158–203°F)
Boiling Point: Decomposes before boiling
Flash Point: Above 200°C (392°F)
Flammability: Not readily flammable
Vapor Pressure: Negligible at ambient temperature
Vapor Density: Not applicable
Relative Density: Approximately 1.05–1.10 g/cm³
Solubility: Insoluble in water; soluble in alcohol, acetone, turpentine
Partition Coefficient (n-octanol/water): Not established
Auto-ignition Temperature: Not determined
Decomposition Temperature: Above 250°C (482°F)
Viscosity: Not applicable
Evaporation Rate: Not applicable

Stability and Reactivity

Chemical Stability: Stable at normal temperatures and under recommended storage conditions
Reactivity: Low; does not react violently with typical industrial chemicals
Hazardous Reactions: Contact with strong oxidizers may cause reaction
Incompatible Materials: Strong acids, strong bases, oxidizing agents
Conditions to Avoid: Overheating, open flames, sparks
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, irritating organic vapors and smoke
Polymerization: Will not occur under normal conditions

Toxicological Information

Acute Toxicity: Low toxicity by oral, dermal, or inhalation routes as reported in animal studies
Skin Corrosion/Irritation: May cause mild to moderate skin irritation or sensitization in repeated contact cases
Serious Eye Damage/Irritation: Can cause temporary eye discomfort or irritation
Respiratory Sensitization: Not commonly reported but possible with prolonged exposure
Skin Sensitization: Repeated/prolonged exposure may elicit allergic responses
Carcinogenicity: No classification as carcinogen by IARC, NTP, OSHA
Reproductive Toxicity: No evidence in available data
STOT – Single/Repeated Exposure: Local skin/eye effects possible, systemic effects not seen
Ingestion Effects: May cause minor gastrointestinal disturbances
Experience with Humans: Rare cases of occupational dermatitis in sensitized individuals

Ecological Information

Ecotoxicity: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Biodegradable under aerobic conditions, slow in aquatic settings
Bioaccumulation Potential: Low to moderate potential for bioaccumulation, resin acids may partition into sediments
Mobility in Soil: Low mobility, binds to soil and sediment
Other Adverse Effects: Avoid release to the environment, even small spills can cause ecological harm
Environmental Fate: Expected to partition to solid phase, persistent fractions may last in sediment

Disposal Considerations

Waste Disposal Methods: Dispose as hazardous waste in accordance with local regulations, incinerate or landfill using a licensed waste contractor
Unused Product: Send to approved chemical disposal facility
Contaminated Packaging: Rinse thoroughly before recycling, or dispose safely
Special Precautions: Do not allow to enter sewers or watercourses
Regulatory Compliance: Follow country, state, and municipal requirements for chemical disposal
EPA Waste Number: Not regulated under RCRA as hazardous waste

Transport Information

UN Number: 3077 (if shipped as environmentally hazardous substance, solid, n.o.s.)
Proper Shipping Name: Disproportionated Rosin (or Environmentally Hazardous Substance, Solid, N.O.S.)
Transport Hazard Class: 9 (if classified under environmental hazard), otherwise not regulated
Packing Group: III (if classified)
Environmental Hazards: Marine pollutant per IMDG Code
Transport Labels: Environmental hazard warning
Special Precautions: Avoid temperature extremes, prevent cargo shifts, segregate from incompatible cargo
Transport Regulations: Comply with DOT, IMDG, IATA as applicable

Regulatory Information

TSCA Status: Listed on US TSCA Inventory
EINECS/ELINCS Number: 232-475-7
OSHA/HCS Status: Regulated under Hazard Communication Standard
SARA Title III: No Section 313 chemicals present
California Proposition 65: Not listed as a chemical known to cause cancer or reproductive toxicity
WHMIS Classification: D2B – Toxic, skin/eye irritant
REACH Registration: Registered substance under EU REACH regulation
Other Standards: Compliant with standard chemical safety regulations in APAC and the Americas
Label Requirements: Hazard and precautionary statements, supplier identification, safety pictograms as per GHS