Material Safety Data Sheet (MSDS) for Hydrogenated Rosin Ester

Identification

Chemical Name: Hydrogenated Rosin Ester
CAS Number: 65997-13-9
Product Description: Pale yellow solid, mild odor
Synonyms: Hydrogenated gum rosin ester, Ester gum
Recommended Uses: Adhesives, inks, coatings, food packaging
Manufacturer: Noted chemical producers supplying specialty resins
Emergency Hotline: Local health and poison control centers

Hazard Identification

Classification: Not classified as a hazardous chemical under GHS
Hazard Statement: Minimal hazard for health and environment under normal use
Signal Word: None
Pictograms: None
Precautionary Statement: Avoid repeated skin contact to prevent irritation, keep away from open flames
Main Routes of Exposure: Skin and eye contact
Symptoms: May cause mild irritation of skin or eyes

Composition / Information on Ingredients

Main Component: Hydrogenated rosin ester, 95–100% by weight
Impurities: Traces of unreacted rosin acids, stabilizers
Additives: Small amounts of antioxidants or processing aids (if any)
CAS Numbers: 65997-13-9 (hydrogenated rosin ester), proprietary for additives
Ingredient Disclosure: No regulated toxic or highly hazardous components reported

First Aid Measures

Inhalation: Move to fresh air, provide rest, seek medical help for breathing problems
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing
Eye Contact: Rinse cautiously with water, hold eyelids open for several minutes
Ingestion: Rinse mouth, avoid inducing vomiting, obtain medical advice if feeling unwell
Advice for Physicians: Treat symptomatically based on exposure and symptoms
Additional Info: No delayed or chronic symptoms expected from minor exposure

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: Direct water jet on molten material
Special Fire Hazards: Melts and decomposes, may release carbon oxides and incompletely burned hydrocarbons
Protective Equipment: Wear self-contained breathing apparatus, full protective firefighting gear
Specific Precautions: Keep containers cool with water spray, avoid inhaling fumes
Explosion Data: Product does not present explosion hazard under normal use
Combustion Products: Carbon dioxide, carbon monoxide, possibly acrid smoke

Accidental Release Measures

Personal Protection: Use gloves and goggles to avoid skin and eye contact
Environmental Precautions: Prevent spillage from entering drains, soil, or bodies of water
Containment: Collect spilled material using non-sparking tools, transfer into waste container
Cleanup Methods: Solidify molten spills with inert material (sand, earth), then scoop up; for powder, use an industrial vacuum
Reference to Other Sections: Consult disposal and protective equipment guidelines
Emergency Procedures: Isolate the area, provide ventilation, prevent additional release or spread

Handling and Storage

Handling Precautions: Minimize dust, avoid contact with eyes and skin, use only with adequate ventilation
Avoid: Sources of ignition, incompatible substances (strong oxidizers)
Safety Measures: Use grounded equipment to prevent static discharge, store in properly labeled containers
Storage Conditions: Keep containers dry, tightly closed, out of direct sunlight
Temperature Guidance: Store between 5°C and 35°C for product stability
Bulk Storage: Use clean, dry silos or bins; avoid prolonged exposure to air and moisture
Other Notes: Segregate from strong acids, oxidizing agents, reducing agents

Exposure Controls / Personal Protection

Exposure Limits: No occupational exposure limit established for hydrogenated rosin ester
Engineering Controls: Local exhaust ventilation recommended in processing areas
Eye/Face Protection: Use safety goggles, especially during transfer, heating, or handling fine powder
Skin Protection: Chemical-resistant gloves and workwear for prolonged handling
Respiratory Protection: Dust mask or respirator when airborne concentrations may be encountered
Hygiene Measures: Wash hands after handling, avoid eating or drinking around product
Work Practice Controls: Maintain good housekeeping, clean up spills promptly

Physical and Chemical Properties

Physical State: Solid at room temperature, softens above 70°C
Color: Pale yellow to amber
Odor: Slight, resin-like
Melting Point: 75°C – 95°C
Density: 1.05–1.10 g/cm³
Solubility: Insoluble in water, soluble in most organic solvents
Flash Point: >220°C (closed cup)
Vapor Pressure: Negligible at room temperature
Boiling Point: Not applicable, decomposes
Evaporation Rate: Not volatile
Partition Coefficient (n-octanol/water): Not available, expected to be low
Auto-Ignition Temperature: Approx. 350°C
Viscosity: Not applicable, solid

Stability and Reactivity

Stability: Chemically stable under standard conditions
Conditions to Avoid: Heating above 200°C for prolonged periods, exposure to strong oxidizers
Reactivity: Not reactive under normal handling or storage
Incompatible Materials: Strong acids, alkalis, and potent oxidizing agents
Decomposition Products: Burning can generate carbon monoxide, carbon dioxide, and organic vapors
Polymerization: Will not occur
Hazardous Reactions: Does not undergo dangerous reactions under prescribed use and storage

Toxicological Information

Acute Toxicity: Very low oral and dermal toxicity; LD50 (rat, oral): > 2000 mg/kg
Inhalation: Dust may cause minor respiratory irritation
Skin Contact: Possible mild irritation on prolonged contact
Eye Contact: Temporary discomfort or redness
Chronic Toxicity: No evidence for long-term health issues or sensitization
Carcinogenicity: Not listed as a carcinogen by ACGIH, IARC, NTP, or OSHA
Mutagenicity: No relevant data suggesting mutagenic potential
Reproductive Effects: No evidence of adverse reproductive effects

Ecological Information

Ecotoxicity: Low toxicity to aquatic life; unlikely to cause long-term damage at typical use concentrations
Persistence and Degradability: Slowly biodegradable through natural processes
Bioaccumulation: Not expected owing to large molecular weight and low solubility
Mobility in Soil: Limited, binds to soil particles, poor water mobility
Other Adverse Effects: Not classified as dangerous to the environment
Aquatic Release Advice: Avoid direct release to waterways or sewer systems

Disposal Considerations

Waste Handling: Gather and place solid waste in properly labeled containers, keep separate from ordinary trash
Disposal Methods: Send to approved landfill or incinerator, observe local regulations
Recycling: Can be reprocessed or sent for energy recovery if uncontaminated
Incineration: Suitable for controlled-energy recovery plants
Contaminated Packaging: Dispose in accordance with regional waste handling procedures
Regulatory Waste Codes: Not considered hazardous waste by US RCRA or EU directives

Transport Information

UN Number: Not regulated
UN Shipping Name: Not assigned
Transport Hazard Class: No classification
Packing Group: Not applicable
Labels Required: None
Marine Pollutant: No
Special Precautions: Protect from excessive heat, avoid crushing bulk containers during transit
Transport Resources: Local guidelines for transporting non-hazardous solids apply

Regulatory Information

TSCA Status: Listed on US Toxic Substances Control Act inventory
REACH Status: Registered under EC regulation 1907/2006 (if supplied in Europe)
Other Inventories: Complies with Canada DSL/NDSL, Australia AICS, China IECSC
SARA Title III: Not classified as an extremely hazardous substance
OSHA: Not regulated hazardous
WHMIS Classification: Not controlled
Other Applicable Laws: Product meets food contact regulations in some regions (check specific national legislation)