Material Safety Data Sheet (MSDS) for Gum Rosin

Identification

Product Name: Gum Rosin
Chemical Name: Rosin
Synonyms: Colophony, Resin Gum
CAS Number: 8050-09-7
Recommended Use: Used in adhesives, inks, coatings, rubber, varnishes, and soaps
Supplier Information: Manufacturer’s contact details provided on packaging or invoice
Emergency Phone Number: Refer to label or product-specific emergency contact

Hazard Identification

Classification: Irritant for eyes, skin, respiratory tract
Hazard Statements: May cause allergic skin reactions; dust or fume inhalation can irritate lungs; may worsen asthma symptoms
Pictograms: Exclamation mark (GHS07)
Signal Word: Warning
Precautionary Statements: Avoid breathing dust or fumes; use protective gloves and eyewear; wash hands after handling; keep away from food and drink during use
Emergency Overview: Combustible solid; dust can ignite in air

Composition / Information on Ingredients

Chemical Identity: Rosin (gum), resin acids, and derivatives
CAS Number: 8050-09-7
Content: 90–95% abietic acid and related resin acids
Impurities: Little to no heavy metals or solvents; trace organic acids possible depending on source
Mixture Components: No significant hazardous additives present

First Aid Measures

Skin Contact: Remove contaminated clothing; wash skin with soap and water; seek medical advice if irritation persists
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if present and easy to do; get medical help if irritation continues
Inhalation: Remove person to fresh air; seek medical attention if breathing is difficult or symptoms appear
Ingestion: Rinse mouth; do not induce vomiting; consult a physician
Most Important Symptoms: Skin and respiratory allergies; eye irritation; cough or wheezing with complicated exposure
Note to Physician: Treat symptomatically; monitor for asthma or lung inflammation

Fire-Fighting Measures

Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide, or water spray
Unsuitable Extinguishing Media: Direct water stream may spread burning material
Specific Hazards: Burns with dense smoke; may release carbon monoxide, carbon dioxide, and acrolein
Special Protective Equipment: Firefighters wear self-contained breathing apparatus and full protective gear
Hazardous Combustion Products: Toxic fumes of carbon oxides

Accidental Release Measures

Personal Precautions: Remove ignition sources; ventilate area; avoid breathing dust or fumes; wear protective equipment
Environmental Precautions: Prevent release into drains, groundwater, or soil
Methods for Containment and Clean-up: Sweep up without raising dust; collect in suitable containers for recycling or disposal; wash spill site with water and mild detergent if necessary
Reference to Other Sections: See exposure controls and disposal sections for further information

Handling and Storage

Handling: Use in well-ventilated area; avoid dust generation; keep away from open flames, sparks, and static discharge
Storage: Store in cool, dry place with adequate ventilation; keep container tightly closed; keep away from sources of ignition; segregate from oxidizing agents, acids, and alkalis
Incompatible Materials: Strong oxidizing agents, strong acids, bases
Hygiene Measures: Do not eat, drink, or smoke during handling; wash hands after use

Exposure Controls and Personal Protection

Respiratory Protection: Dust mask or respirator recommended for dust-producing operations
Skin Protection: Wear chemical resistant gloves; long-sleeved clothing if prolonged contact possible
Eye Protection: Safety glasses with side shields or chemical goggles
Engineering Controls: Local exhaust ventilation; minimize dust generation
Exposure Limits: No established OSHA or ACGIH TLV; minimize exposure as standard practice
Environmental Exposure Controls: Avoid dispersal into the environment; use spill control measures

Physical and Chemical Properties

Appearance: Solid; yellow to amber, glassy brittle mass or crystals
Odor: Slightly pine-like
Odor Threshold: Not determined
pH: Not applicable (insoluble in water)
Melting Point: 70–80 °C
Boiling Point: >200 °C (decomposes)
Flash Point: 200 °C
Evaporation Rate: Not applicable
Flammability: Combustible solid
Vapor Pressure: Negligible at room temperature
Solubility: Insoluble in water; soluble in alcohol, ether, chloroform, benzene
Partition Coefficient (n-octanol/water): Not available
Decomposition Temperature: Decomposes above 200 °C
Viscosity: Not applicable
Density: Approximately 1.1 g/cm³

Stability and Reactivity

Stability: Stable under normal storage and handling conditions
Reactivity: Strong reactions not expected under normal conditions
Hazardous Reactions: Strong oxidizers can cause rapid reaction
Conditions to Avoid: Heat, flame, sparks, high temperatures, sources of ignition
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, acrolein, other organic vapors
Incompatibility: Strong oxidizers, acids, alkalis
Polymerization: Not likely under normal conditions

Toxicological Information

Routes of Exposure: Skin, eyes, inhalation, ingestion
Acute Effects: Irritation of skin, eyes, respiratory tract; may cause allergic skin response
Chronic Effects: Repeated or prolonged exposure can trigger asthma, eczema, or skin sensitization; some cases reported among workers in soap, varnish, or solder flux industries
LD50 (oral, rat): >5,000 mg/kg (low acute toxicity)
Carcinogenicity: Not listed by IARC, NTP, OSHA
Mutagenicity: No evidence; not considered mutagenic
Other Potential Hazards: May worsen pre-existing asthma or respiratory conditions
Medical Conditions Aggravated by Exposure: Asthma, allergies, eczema

Ecological Information

Ecotoxicity: Not highly toxic to aquatic organisms; may cause localized pollution in large quantities
Mobility: Low mobility in soil; floats on water
Persistence and Degradability: Biodegradable in soil and water; breaks down to naturally occurring acids
Bioaccumulation: Potential low bioaccumulation due to metabolism in organisms
Other Adverse Effects: Resin acids may affect aquatic environments if released in bulk
Special Precautions: Do not flush large amounts to wastewater; avoid discharge to surface water or sewers

Disposal Considerations

Waste Treatment Methods: Collect and dispose of as non-hazardous industrial waste
Disposal of Product: Incinerate in approved facility or landfill per local regulations
Disposal of Contaminated Packaging: Rinse containers; recycle or dispose of as per local authority guidelines
Regulations: Follow federal, state, and local regulations on waste disposal
Special Instructions: Avoid uncontrolled releases or disposal to drains

Transport Information

UN Number: Not regulated under most international transport codes
UN Proper Shipping Name: Rosin
Transport Hazard Class: No classification due to low hazard
Packing Group: Not assigned
Environmental Hazards: Not considered dangerous for transport
Transport in Bulk: Avoid contamination and exposure to heat
Precautions: Prevent spillage, keep containers closed, handle with care to prevent dust generation
Regulatory Notes: Can be shipped as non-dangerous goods

Regulatory Information

Safety, Health, Environmental Regulations: TSCA listed in the USA; EINECS EC No. 232-475-7
OSHA Status: Not specifically regulated as hazardous
SARA Title III: Not subject to reporting
Canada DSL: Listed
EU REACH: Registered; meets requirements for use in industry
Labeling Requirements: Signal word “Warning”; irritant symbol
Other Regulations: Not classified as hazardous under most international transport codes
Local Restrictions: Comply with all local, regional, and national regulations on storage, use, and disposal