Material Safety Data Sheet: Hydrogenated Rosin

1. Product Identification

Product Name: Hydrogenated Rosin
Chemical Nature: Mixture of hydrogenated rosin acids
Chemical Formula: C19H29COOH (Major components)
Synonyms: Hydro-rosin, Hydrogenated gum rosin
CAS Number: 65997-06-0
Recommended Use: Adhesives, coatings, inks, rubber compounding, chewing gum bases
Supplier Details: Manufacturer and supplier contact information, phone numbers for emergency assistance
Emergency Phone: Chemtrec or national poison hotline

2. Hazard Identification

GHS Classification: Not classified as hazardous under GHS
Signal Word: None
Hazard Statements: Not considered hazardous, possible irritation to eyes, skin, respiratory tract from dust
Precautionary Statements: Avoid inhaling dust and contact with eyes or skin
Potential Health Effects: Dust may irritate respiratory passages, eyes, and skin, molten material can cause burns
Environmental Risk: Low bioaccumulation, limited aquatic toxicity

3. Composition / Information on Ingredients

Main Ingredient: Hydrogenated rosin acids (≥ 90%)
Impurities: Dehydroabietic acid, minor resin acids
Form: Solid, flakes or lump
CAS Number: 65997-06-0

4. First Aid Measures

Inhalation: Remove person to fresh air, seek medical attention for persistent symptoms
Skin Contact: Wash gently with soap and water, remove contaminated clothing
Eye Contact: Flush eyes with plenty of water for up to 15 minutes, get medical assessment if discomfort continues
Ingestion: Rinse mouth, call physician if feeling unwell, do not induce vomiting without advice
Burns (molten product): Cool area with water, do not remove solidified material from skin, seek medical treatment immediately

5. Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Specific Hazards: Emits carbon monoxide, carbon dioxide, and possible irritating fumes during combustion
Protective Equipment: Firefighters need self-contained breathing apparatus (SCBA), full protective gear, avoid inhalation of fumes
Advice: Remove containers from fire zone, douse cooled, non-burning containers with water to prevent pressure build-up, use caution for hot melting resin

6. Accidental Release Measures

Personal Precautions: Wear dust mask, gloves, safety goggles, avoid creating dust clouds, ventilate the affected area
Environmental Precautions: Prevent entry into sewers and waterways, recover product if possible
Spill Cleanup: Collect solid material with non-sparking tools, sweep or shovel into suitable containers, clean surface thoroughly with water after removal
Large Spills: Use industrial vacuum, minimize dust generation, dispose according to local regulations

7. Handling and Storage

Handling: Use adequate ventilation, handle away from food and beverages, avoid inhaling dust or fumes, keep away from open flames or ignition sources when handling hot material
Storage: Store in cool, dry, well-ventilated place, keep containers tightly closed, avoid contact with oxidizing agents, store away from incompatible materials such as alkali and acids
Special Precautions: Do not smoke, eat or drink in working area, maintain equipment clean to avoid product build-up

8. Exposure Controls and Personal Protection

Exposure Limits: No established OSHA or ACGIH limits, general dust limits apply (e.g., nuisance dust 10 mg/m³ for inhalable, 3 mg/m³ for respirable fraction)
Engineering Controls: Local exhaust ventilation, dust collection systems, regular monitoring of airborne particulates
Personal Protective Equipment: Dust mask or respirator (NIOSH-approved), safety glasses with side shields, gloves (PVC, nitrile or similar), long-sleeved clothing, safety shoes
Hygiene Measures: Wash hands after use, remove contaminated clothing, do not eat, drink, or smoke while working

9. Physical and Chemical Properties

Appearance: Pale yellow solid, flakes or crumbs
Odor: Mild, resinous
pH: Not applicable (nearly insoluble in water)
Boiling Point: Decomposes before boiling (thermal decomposition above 250°C)
Melting Point: 75 – 85°C
Flash Point: >230°C (closed cup)
Solubility: Insoluble in water, soluble in organic solvents (e.g., alcohols, esters, turpentine)
Vapor Pressure: Negligible at ambient temperatures
Relative Density: 1.06–1.08 (water = 1)
Viscosity: Solid at room temperature, softens on heating

10. Stability and Reactivity

Chemical Stability: Stable under recommended storage and handling conditions
Reactivity: Low reactivity, can react with strong oxidizing agents
Conditions to Avoid: High temperatures, open flames, incompatible materials
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, possibly acrolein or aldehydes under extreme heat
Polymerization: Will not polymerize

11. Toxicological Information

Acute Toxicity: Practically non-toxic, oral LD50 >5,000 mg/kg (rat)
Skin Corrosion/Irritation: Low risk of irritation, molten product causes thermal burns
Eye Damage/Irritation: Mild, reversible irritation possible from dust
Respiratory Effects: May cause irritation due to dust, no chronic effects reported
Chronic Toxicity: No evidence of mutagenicity, carcinogenicity, or reproductive toxicity from studies and available data

12. Ecological Information

Ecotoxicity: Low toxicity to aquatic life based on resin acids data, not persistent
Biodegradability: Biodegradable by soil and aquatic microorganisms
Bioaccumulative Potential: Minimal, low BCF values in aquatic systems
Mobility in Soil: Low, product tends to bind to soil particles
Other Adverse Effects: No significant ozone depletion, no rapidly acting environmental hazard

13. Disposal Considerations

Waste Disposal Methods: Recycle or dispose of in compliance with local, regional, and national regulations, avoid discharge to waterways
Packaging Disposal: Empty containers may contain residues, treat as product and dispose/recycle as required
Special Precautions: Do not incinerate sealed containers, avoid reusing contaminated packaging for food or drink

14. Transport Information

UN Number: Not regulated
UN Proper Shipping Name: Not classified as dangerous goods
Transport Hazard Class: None
Packing Group: None
Environmental Hazards: Not a marine pollutant
Special Precautions: Use sealed packaging, protect from moisture and excessive heat during transport

15. Regulatory Information

OSHA Status: Not considered hazardous
TSCA: Listed
EU Reach: Registered
SARA Title III: Not subject to reporting requirements
WHMIS (Canada): Not controlled
Labeling: No hazard symbol or specific risk phrases required under current regulations
Other Regulations: Meets FDA 21 CFR requirements for indirect food contact applications