Product Name: Cyanex 301
Chemical Name: Bis(2,4,4-trimethylpentyl)dithiophosphinic acid
CAS Number: 83286-82-6
Recommended Use: Solvent extraction and separation of metals
Manufacturer/Supplier: Solvay or similar major chemical company
Emergency Contact: Refer to local regulations or company-specific numbers
Synonyms: DTPA, Cyanex 301, Dithiophosphinic acid derivative
Classification: Acute toxicity (oral, dermal), Skin irritation, Eye irritation, Aquatic acute/chronic toxicity
GHS Label Elements: Danger
Hazard Statements: Harmful if swallowed or in contact with skin, Causes skin irritation, Causes serious eye irritation, Toxic to aquatic life with long lasting effects
Precautionary Statements: Avoid breathing mist/vapors, Use protective gear, Wash thoroughly after handling, Keep away from environment
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Target Organs: Skin, eyes, digestive tract
Symptoms of Exposure: Redness, burning sensation, nausea, vomiting, drowsiness
Chemical Identity: Bis(2,4,4-trimethylpentyl)dithiophosphinic acid
Concentration: Over 90%
Impurities: Minor diluents, unspecified proprietary stabilizers
Other Components: Trace hydrocarbons
Inhalation: Move person to fresh air, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothes and wash skin with soap and water, seek medical attention for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if easy to do, continue rinsing, get medical help fast
Ingestion: Rinse mouth, do not induce vomiting, drink water if conscious, get medical attention immediately
Most Important Symptoms: Burning, irritation, nausea, coughing
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, water spray
Specific Hazards: Emits toxic fumes of phosphorus oxides, sulfur oxides, hydrocarbons under fire conditions
Protective Equipment: Firefighters use standard self-contained breathing apparatus and full protective gear
Special Procedures: Cool exposed containers with water spray to prevent pressure build-up
Flammability: Not classified as highly flammable, can still burn if heated
Personal Precautions: Wear gloves, goggles, and suitable protective clothing to prevent skin and eye contact
Environmental Precautions: Prevent release into drains or environment, use barriers to contain spill
Methods for Containment: Absorb with inert material such as dry sand or earth, scoop into labeled waste container
Clean-up Procedures: Ventilate area, wash site after material pick-up
Disposal: Dispose contents according to local regulations
Safe Handling: Avoid contact with skin and eyes, avoid inhaling vapor or mist, use only in well-ventilated areas
Precautions: Use protective clothing and gloves, always wash hands after handling
Safe Storage: Store tightly closed in a cool, dry, well-ventilated location away from incompatible substances (strong oxidizers, bases)
Incompatible Materials: Strong bases, oxidizers, reducing agents
Storage Temperature: Standard ambient temperature recommended
Exposure Limits: No specific occupational exposure limits established for Cyanex 301
Engineering Controls: Local exhaust ventilation or general area ventilation
Personal Protective Equipment: Chemical resistant gloves (nitrile recommended), splash-proof goggles, long-sleeved clothing
Respiratory Protection: Use NIOSH/MSHA approved respirator in absence of adequate ventilation
Hygiene Measures: Wash hands, face, and any exposed skin thoroughly after handling
Appearance: Clear to pale yellow liquid
Odor: Faint sulfur/organic odor
Melting Point: Below room temperature
Boiling Point: Decomposes before boiling
Solubility: Insoluble in water, soluble in aliphatic and aromatic hydrocarbons
Specific Gravity: Around 0.95–1.00
Vapor Pressure: Low at ambient temperature
Flash Point: Above 100°C (estimate)
pH: Not applicable
Partition Coefficient: High log Kow, indicates significant tendency to partition into organic phase
Chemical Stability: Stable under typical storage and use conditions
Hazardous Polymerization: Not expected
Reactivity: Reacts with strong bases, oxidizers, and reducing agents
Conditions to Avoid: Excessive heat, contact with incompatible chemicals
Decomposition Products: Phosphorus oxides, sulfur compounds, hydrocarbons
Likely Routes of Exposure: Inhalation, skin, eyes, ingestion
Acute Toxicity: Harmful if swallowed or in contact with skin (LD50 data generally >2000 mg/kg, may vary)
Skin Corrosion/Irritation: Causes moderate to severe irritation
Eye Damage/Irritation: Causes significant irritation and possible damage
Respiratory Effects: May cause coughing or shortness of breath at high vapor levels
Chronic Effects: Data limited, prolonged/repeated exposure may contribute to dermatitis
Sensitization: Not widely reported; possible for sensitive individuals
Aquatic Toxicity: Highly toxic to aquatic organisms even at low concentrations
Persistence/Degradability: Not readily biodegradable
Bioaccumulation Potential: Expected to bioaccumulate due to high log Kow
Mobility in Soil: Low water solubility, likely to bind to soil particles
Other Adverse Effects: Should not enter waterways, wastewater, or soil
Waste Disposal Methods: Dispose through licensed chemical waste contractor
Contaminated Packaging: Rinse thoroughly before discarding, follow federal/state/local regulations
Special Instructions: Do not discard to drain, landfill, or natural waterways
Residual Waste: Treat hazardous waste with extreme caution
UN Number: UN3077
Proper Shipping Name: Environmentally hazardous substance, liquid, n.o.s. (contains dithiophosphinic acid derivative)
Transport Hazard Class: 9 (Miscellaneous dangerous substances and articles)
Packing Group: III
Label: Environmentally hazardous
Special Precautions: Avoid release during transportation
Regulatory Information: Follows ADR/RID, IMDG, ICAO/IATA guidelines
OSHA Status: Regulated as hazardous
EPA TSCA Status: Listed
SARA Title III: Not specifically listed under SARA 313
California Proposition 65: Not listed
European Inventory: EINECS/ELINCS listed as appropriate
Other International Regulations: Complies with main global chemical control laws; check national/local standards
