Material Safety Data Sheet: Maleic Modified Rosin Ester

Identification

Product Name: Maleic Modified Rosin Ester
Chemical Family: Rosin Ester
Synonyms: Maleated Rosin Ester, Maleic Anhydride-Modified Rosin Ester
Recommended Use: Adhesives, coatings, inks, sealants
Manufacturer: Name, address, emergency contact number provided by supplier
CAS Number: 8050-28-0 (product may use proprietary blend)
UN Number: Not regulated for most forms
Email: Provided by supplier for health and safety queries
Date of Preparation: Always listed on official MSDS

Hazard Identification

Hazard Classification: Not considered hazardous based on available data
GHS Label Elements: May include exclamation mark for skin or eye irritation
Signal Word: Warning (if irritation potential exists)
Hazard Statements: Can cause eye or skin irritation; inhalation of dust may irritate respiratory tract
Precautionary Statements: Avoid breathing dust, wash hands after handling, use only with adequate ventilation
Other Hazards: Molten form can cause serious burns
Physical Hazards: At high temperatures may present risk of fire
Environmental Hazards: Not classified but always avoid uncontrolled release to environment

Composition / Information on Ingredients

Ingredient: Maleic Modified Rosin Ester
Chemical Nature: Ester of rosin with maleic anhydride and polyols
CAS Number: 8050-28-0 (product-specific variations exist)
Concentration: 100%, or blends may contain up to 98% with possible additives or stabilizers
Impurities: Trace residual unreacted maleic anhydride, very low percentages
Other Ingredients: Polyols (glycerol, pentaerythritol), presented below regulatory disclosure thresholds

First Aid Measures

Inhalation: Move person to fresh air. If symptoms like coughing or shortness of breath develop, seek medical attention
Skin Contact: Remove contaminated clothing, wash exposed skin with soap and water; for molten contact, cool area with water but do not remove adhered material
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, seek medical advice if irritation persists
Ingestion: Rinse mouth, do not induce vomiting, seek medical attention if symptoms occur or large quantity ingested
Advice to Physicians: Treat symptomatically, monitor for chemical burns after contact with melt

Fire-Fighting Measures

Suitable Extinguishing Media: Use foam, dry chemical powder, or CO2
Unsuitable Extinguishing Media: Direct water jets may scatter molten product
Hazardous Combustion Products: Carbon oxides (CO, CO2), irritation gases, trace organic compounds
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear
Specific Hazards: Dust or molten material can ignite under strong heat, heated product produces dense smoke
Firefighting Instructions: Cool containers with water spray from a safe distance, remove containers from fire area if possible without risk

Accidental Release Measures

Personal Precautions: Evacuate area, avoid inhalation of dust, wear protective clothing including gloves and goggles
Environmental Precautions: Prevent entry into drains, sewers, surface water, and soil
Cleanup Methods: For solid, sweep up and collect in suitable containers for disposal; for molten, allow to solidify, then remove mechanically
Spill Containment: Use inert absorbing material for larger spills; ventilate area
Disposal: Follow local, regional, and national regulations on waste handling

Handling and Storage

Handling: Use only with adequate ventilation, avoid generating dust, minimize contact with skin and eyes
Storage: Store in a well-ventilated, cool, dry place away from strong oxidizing agents and moisture
Packaging Materials: Store in original tightly closed containers made of recommended materials
Special Precautions: Secure containers to prevent tipping, keep away from sources of ignition, label containers clearly

Exposure Controls and Personal Protection

Exposure Limits: No established occupational exposure limits for product as a whole
Engineering Controls: Use local exhaust ventilation, process enclosures if dust or vapors may be generated
Personal Protection: Wear gloves (nitrile or PVC), safety glasses or goggles, and protective clothing
Respiratory Protection: Use dust masks or respirators (NIOSH approved) if dusting or fume generation cannot be avoided
Hygiene Practices: Wash hands after handling, do not eat or smoke in work area
Environmental Controls: Prevent spills from entering water courses, use suitable filter systems

Physical and Chemical Properties

Appearance: Pale yellow to amber solid or viscous liquid (form varies)
Odor: Slight, resinous
pH: Not applicable (generally non-aqueous)
Melting Point/Range: 65 - 130°C (147 - 266°F), varies with formulation
Boiling Point: Not determined (decomposes before boiling)
Flash Point: Above 250°C (closed cup method)
Evaporation Rate: Not applicable
Vapor Pressure: Negligible at ambient temperature
Solubility: Insoluble in water, soluble in common organic solvents (ethyl acetate, turpentine, alcohols)
Density: 0.95 - 1.2 g/cm³
Viscosity: Highly viscous (molten)
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Over 350°C
Explosive Properties: Dust may form explosive mixtures with air at high concentrations

Stability and Reactivity

Chemical Stability: Stable under normal handling and storage conditions
Possibility of Hazardous Reactions: Strong oxidizing agents can cause exothermic reaction
Conditions to Avoid: Excessive heat, open flame, strong acids or bases, sources of ignition
Incompatible Materials: Oxidizers, strong acids, alkalis
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, organic acids, smoke
Polymerization: Not expected under recommended storage and use conditions

Toxicological Information

Acute Toxicity: Low toxicity, not classified as hazardous by ingestion, skin or inhalation
Skin Contact: May cause irritation or sensitization in sensitive individuals
Eye Contact: Contact may irritate
Inhalation: Overexposure to dust or fumes can irritate respiratory tract
Chronic Effects: Prolonged or repeated contact may dry skin or cause dermatitis
Carcinogenicity: Not classified as carcinogenic by IARC, OSHA, NTP
Mutagenicity/Reproductive Toxicity: No data suggesting mutagenic or reproductive hazards
Other Data: Based on structurally similar substances, product unlikely to produce systemic toxic effects

Ecological Information

Ecotoxicity: Limited toxicity to aquatic organisms, avoid uncontrolled release
Persistence and Degradability: Product is a natural resin derivative, slowly biodegradable
Bioaccumulation Potential: Low potential based on solubility and partition behavior
Mobility in Soil: Insoluble in water, tends to remain in soil or sediment
Other Adverse Effects: No known significant effects, minimize release to waterways and soil

Disposal Considerations

Waste Treatment Methods: Collect and place in suitable containers, dispose of as non-hazardous industrial waste unless mixed with hazardous materials
Disposal Regulations: Check local, regional, and national regulations for waste disposal
Incineration: Permissible where allowed, using properly controlled facilities
Recycling: Can be considered if product recovery is practical
Contaminated Packaging: Rinse containers thoroughly or dispose in accordance with regulatory requirements

Transport Information

UN Number: Not classified as dangerous for transportation
UN Proper Shipping Name: None assigned
Transport Hazard Class: Not regulated
Packing Group: Not regulated
Special Precautions: Ensure packaging is secure and avoids damage, transport in dry, covered vehicles
Transport Documentation: Ensure all container labels comply with current regulations

Regulatory Information

TSCA: Listed or complies with inventory requirements in the United States
REACH: Exempt or pre-registered as natural resin derivative in Europe
OSHA Classification: Not a hazardous chemical under OSHA Hazard Communication Standard
DSL/NDSL: Listed in Canada
Other International Inventories: Typically listed on Australian, Japanese, Korean, and Chinese inventories
RoHS/ELV Compliance: Meets limits on hazardous substances
Additional Notes: Safety data sheet available on request, all handlers expected to use standard personal protection practices and comply with workplace safety programs