Product Name: Unsaturated Polyester Resin Accelerator
Synonyms: Cobalt Octoate Solution, Cobalt Naphthenate Accelerator
Recommended Use: Catalyst for curing unsaturated polyester resins in fiberglass fabrication, laminates, gel coat formulations
Manufacturer: [Company Name], [Address], [Contact phone number], [Email]
Emergency Contact: [Emergency telephone]
Product Code: [Number]
Intended Users: Professionals in composites, industrial resin users, and production operators working in ventilated spaces
Date of Issue: [Date issued or revised]
Restrictions: Not for general public, unsuitable for household or consumer use
Classification: Flammable liquid (category 3); Acute toxicity (oral, category 4); Skin sensitizer (category 1); Serious eye damage (category 1)
Hazard Statements: Flammable liquid and vapor. Harmful if swallowed. May cause an allergic skin reaction. Causes serious eye damage.
Signal Word: Danger
Pictograms: Flame, exclamation mark, corrosion
Routes of Entry: Inhalation, skin, eyes, ingestion
PPE Recommendations: Avoid skin/eye contact; minimize inhalation of vapor or mist; ensure adequate ventilation
Target Organs: Skin, eyes, respiratory system; may amplify asthma-like symptoms in sensitized individuals
Precautionary Statements: Keep container closed. No open flames or sparks. Wash exposed skin thoroughly after handling.
Environment Hazards: Toxic to aquatic life with long-lasting effects; prevent release into waterways and drains
Main Component: Cobalt (II) 2-ethylhexanoate (CAS: 136-52-7), 1.0-2.0%
Solvent: Naphtha (petroleum), hydrotreated heavy (CAS: 64742-48-9), 95.0-97.5%
Additives: Trace stabilizers, anti-oxidants, anti-skinning agents in proprietary concentrations
Impurities: Possible trace amounts of benzene derivatives, organic acids
Other Names: Cobalt octoate, cobalt neodecanoate
Physical State: Violet to dark brown liquid
Inhalation: Remove patient to fresh air, keep warm and still. Medical attention for persistent cough, respiratory discomfort, headache, or dizziness.
Skin Contact: Remove contaminated clothing immediately. Wash thoroughly with soap and water. Do not use solvents. Seek medical advice if irritation or allergic reaction develops.
Eye Contact: Rinse eyes gently with plenty of water for 15+ minutes, lift upper and lower lids occasionally. Remove contact lenses. Obtain urgent medical care.
Ingestion: Rinse mouth. Do not induce vomiting. Get immediate medical assistance. Never give anything orally to unconscious or convulsing person.
Notes to Physician: Treat symptomatically. Watch for respiratory distress, delayed skin sensitization, possible cyanosis.
Special Equipment: Emergency eyewash and shower stations in the immediate area of use are strongly advised.
Suitable Extinguishing Media: Foam, carbon dioxide, dry chemical powder, sand. Do not use water stream directly.
Special Hazards: Emits toxic fumes (carbon oxides, cobalt oxides, organic vapors) when exposed to heat or flame. Vapors heavier than air—may accumulate in low areas.
Protective Equipment: Full firefighting gear, self-contained breathing apparatus (SCBA), chemical-resistant suit.
Advice for Firefighters: Approach from upwind, cool containers with water spray from safe distance.
Additional Info: Risk of container rupture/explosion if heated. Fire residue and contaminated water must be disposed in accordance with regulations.
Personal Precautions: Evacuate area, ventilate space, wear gloves, goggles, apron, and a suitable respirator if available.
Environmental Methods: Prevent further leakage or spillage. Do not allow into watercourses, soil, drains.
Containment: Absorb with inert materials (sand, earth, vermiculite). Collect in closed container for disposal.
Cleanup Methods: Wash spill area with soap and water after initial cleanup. Avoid splashing, prevent vapor inhalation.
Disposal: Material and contaminated absorbents must be disposed as hazardous waste via approved handler.
Reporting: Notify relevant authorities if spill exceeds reportable quantities.
Safe Handling: Always handle in a ventilated area away from sparks, open flame, or heat. Avoid direct contact with skin and eyes. Do not breathe vapors or mist. No eating, drinking, or smoking in work area.
Storage Conditions: Store upright in closed, original container under cool, dry, well-ventilated conditions, away from sunlight and incompatible chemicals (acids, peroxides, oxidizers).
Incompatibilities: Strong oxidizers, acids, peroxides, reducing agents.
Specific Storage Requirements: Metal drums with internal lining preferred; keep away from ammonium salts, reducing metals. Polyethylene or PVC containers can be used.
Shelf Life: Usually 12 months under recommended storage conditions.
Occupational Exposure Limits: Cobalt compounds—ACGIH TLV: 0.02 mg/m³ (as cobalt); OSHA PEL: 0.1 mg/m³
Engineering Controls: Use local exhaust ventilation or extraction to minimize vapor exposure.
Respiratory Protection: Organic vapor cartridge respirator or air supplied mask as required by airborne concentrations.
Eye/Face Protection: Safety goggles with side shields, face shield for large-scale operations.
Skin Protection: Chemical-resistant gloves (nitrile, PVC), long-sleeved clothing, apron.
Work Hygiene: Wash after handling, avoid skin/eye contact. Keep away contaminated clothing.
Environmental Controls: Effluent treatment plant for process water. Monitor workplace cobalt exposure with appropriate detectors.
Appearance: Violet or dark brown liquid
Odor: Characteristic petroleum or solvent odor
Melting Point/Range: Not applicable (liquid at room temperature)
Boiling Point: 150-260°C, varies by solvent
Flash Point: 38-60°C (closed cup, varies by batch)
Flammability: Liquid—readily ignitable
Vapor Density: Heavier than air
Vapor Pressure: 2-10 mm Hg at 20°C
Solubility: Insoluble or slightly soluble in water, miscible with organic solvents
Density: 0.89-0.94 g/cm³
Viscosity: Thin fluid, less than 50 mPa·s at 25°C
pH: Not determined
Chemical Stability: Remains stable under recommended storage and handling conditions.
Thermal Decomposition: Decomposes at high temperature releasing toxic fumes (cobalt oxides, hydrocarbons).
Reactivity Hazards: Strong oxidizing agents accelerate hazardous reactions.
Hazardous Polymerization: Product does not polymerize under normal conditions.
Conditions to Avoid: Sparks, flames, heat, strong acids, strong oxidizers, incompatibles.
Incompatible Materials: Peroxides, reducing agents, acids, halogenated materials.
Hazardous Decomposition Products: Cobalt and carbon oxides, possibly volatile organic compounds.
Acute Toxicity: Harmful if swallowed (LD50 oral rats: 1120 mg/kg for cobalt salts).
Skin Sensitization: Can cause skin allergies or dermatitis after repeated exposure. Patch tests often show hypersensitivity in some users.
Eye Damage: May cause serious irritation, risk of permanent injury from splashes.
Respiratory Effects: Inhalation of vapors may cause coughing, dizziness, shortness of breath, headache. Persons with asthma risk aggravated symptoms.
Chronic Toxicity: Prolonged/co-exposure to cobalt accelerators may affect lungs, heart (cardiomyopathy in animal studies), and thyroid.
Carcinogenicity: IARC classifies cobalt and its inorganic compounds as possibly carcinogenic to humans (Group 2B).
Mutagenicity: Some animal studies indicate genetic toxicity from cobalt exposure.
Other Health Effects: May worsen eczema or other chronic skin conditions.
Ecotoxicity: Highly toxic to aquatic invertebrates and fish (LC50 for Daphnia magna: 1-10 mg/L for cobalt salts, 96hrs).
Persistence and Degradability: Not readily biodegradable, cobalt compounds persist in sediment.
Bioaccumulation Potential: Cobalt may accumulate in aquatic organisms.
Mobility in Soil: Low to moderate, substantial risk if spilled in proximity to water sources.
Other Adverse Effects: Spilled material may disrupt local ecosystems; forms stable chelates in complex environments.
Waste Treatment Methods: Dispose according to local, state, and federal regulations. Incineration by licensed hazardous waste processor recommended.
Container Disposal: Triple rinse containers; destroy by crushing or piercing, send for approved landfill or recycling.
Prohibited Methods: Do not discharge to sewers, surface water, or soil.
Special Precautions: Wear protective equipment during disposal. Notify authorities for significant spills.
UN Number: UN 1993
UN Proper Shipping Name: Flammable Liquid, N.O.S. (Contains Cobalt Octoate, Naphtha)
Transport Hazard Class: 3 (Flammable liquids)
Packing Group: III
Marine Pollutant: Yes — mark packaging/vehicle appropriately.
Special Precautions: No smoking, keep away from heat, properly label containers.
Transport Labels: Flammable liquid, environmentally hazardous substance plate as required by regulations.
Additional Transport Information: Avoid rough handling. Road/rail/sea/air transport subject to international and national guidelines.
Labelling Requirements: Follow OSHA Hazard Communication Standard (29 CFR 1910.1200), EU REACH, GHS label formats.
US Regulations: SARA Title III Section 313 (cobalt compounds identified as toxic chemical); TSCA inventory compliant
EU Regulations: CLP Regulation (EC) No 1272/2008; Cobalt compounds subject to authorisation under REACH
Other Regulations: Listed on Canadian DSL, Australian AICS, Japanese ENCS.
Workplace Restrictions: Cobalt exposure limited under various occupational health schemes.
Permissible Residues: Effluent and emissions subject to EPA, local environmental agency limits.
