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Product Name: Copper Arsenite
Chemical Formula: CuHAsO3
Synonyms: Scheele’s Green, Copper Hydrogen Arsenate
Recommended Use: Pigment, Laboratory Chemical
CAS Number: 12002-03-8
Supplier Details: Chemical distribution companies, laboratory suppliers
Emergency Contact: Refer to local regulations for emergency telephone numbers
Manufacturer Address: Refer to specific product label
Hazard Classes: Acute Toxicity (Oral, Dermal, Inhalation), Carcinogenicity, Chronic Toxicity
Signal Word: Danger
Hazard Statements: Highly toxic if swallowed, inhaled, or in contact with skin; Carcinogenic; Risk of genetic defects; Danger to aquatic life with long lasting effects
Pictograms: Skull and Crossbones, Health Hazard, Environment
Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Symptoms: Abdominal pain, vomiting, diarrhea, weakness, convulsions, skin or respiratory irritation; possible fatal poisoning
Target Organs: Liver, kidneys, central nervous system, respiratory tract, skin
Copper Arsenite (CuHAsO3): 98–100%
Impurities: May contain trace quantities of other heavy metals (<1%)
Inhalation: Move person to fresh air immediately; keep at rest; seek urgent medical attention if symptoms develop; provide oxygen if breathing is difficult; do not give mouth-to-mouth resuscitation
Skin Contact: Remove contaminated clothing; wash skin thoroughly with soap and water; do not neutralize on skin; seek medical advice
Eye Contact: Rinse cautiously with water for at least 15 minutes; remove contact lenses if present and easy to remove; do not rub eyes; get medical help immediately
Ingestion: Rinse mouth; do not induce vomiting; do not offer anything by mouth to an unconscious person; seek immediate medical care; keep victim calm and warm
Notes for Physicians: Treat symptomatically; support respiratory and cardiovascular function; monitor for delayed effects; consider chelation therapy in severe arsenic poisoning
Suitable Extinguishing Media: Dry chemical, CO2, alcohol-resistant foam, or water spray in case of large fires
Unsuitable Media: Direct water jet may spread powdered product
Hazardous Combustion Products: Toxic fumes of copper oxides, arsenic trioxide, arsenic-containing gases
Protective Equipment: Self-contained breathing apparatus (SCBA), full protective gear; firefighters avoid breathing dust and smoke
Special Hazards: Avoid dispersal of dust; run-off from fire control or dilution water may cause pollution and be toxic
Personal Precautions: Isolate spill area; keep unprotected personnel away; use respiratory protection and chemical-resistant gloves; avoid dust formation
Environmental Precautions: Keep out of drains, surface water, and soil; prevent release into environment; authorities should be notified in case of large spills
Methods for Clean-up: Wear protective equipment; sweep up or vacuum (using HEPA filter); avoid stirring up dust; use damp cloth to wipe surfaces; place in labeled sealed containers for disposal; ventilate affected area thoroughly
Decontamination Procedures: Wash spill area with household bleach solution and water after cleanup; prevent further contamination
Handling: Use in well-ventilated settings or within fume hoods; avoid all contact with skin, eyes, and clothing; never eat, drink, or smoke during handling; keep containers tightly sealed; minimize dust generation; use tools and equipment specifically reserved for toxic materials
Storage: Store in cool, dry, well-ventilated chemical storage area; keep container where only trained personnel have access; store away from incompatible substances such as acids, strong bases, oxidizers; use corrosion-proof containers; label containers clearly with hazard warnings; protect from light and moisture
Occupational Exposure Limits: OSHA PEL (Arsenic): 0.01 mg/m³ (as As); ACGIH TLV: 0.01 mg/m³ (as As)
Engineering Controls: Local exhaust ventilation, fume hood, process enclosure
Personal Protective Equipment: Chemical-resistant gloves (such as neoprene), safety goggles, face shield, laboratory coat or impervious clothing; use a NIOSH-approved respirator for airborne exposures; remove contaminated clothing after use and wash thoroughly before reuse; always wash hands before breaks or eating
Hygiene Measures: Do not touch eyes, face, or mouth; keep away from food, beverages, and animal feed; ensure eyewash stations and emergency showers are close
Appearance: Fine green powder
Odor: Odorless
pH: Not applicable (insoluble in water)
Melting Point: Decomposes prior to melting
Boiling Point: Not applicable (decomposes)
Density: 3.75–4.0 g/cm³
Solubility: Practically insoluble in cold water; slightly soluble in acids
Vapor Pressure: Not relevant (solid material)
Other Relevant Properties: Stable under recommended storage conditions; particulate may form combustible dust clouds in air; not flammable as a solid but decomposition yields highly toxic gases
Chemical Stability: Stable under ambient conditions if stored dry and away from incompatible substances
Reactivity: Reacts with acids forming toxic arsine and copper salts;
Conditions to Avoid: Heating, high humidity, exposure to sunlight, incompatible materials (especially acids and strong oxidizers); friction or impact can produce dust
Incompatible Materials: Strong acids, bases; oxidizers; reducing agents
Decomposition Products: Arsenic oxides, copper oxides, toxic metallic fumes
Polymerization: Will not occur
Routes of Entry: Inhalation, ingestion, dermal absorption
Acute Toxicity: Oral (LD50, rat): 19 mg/kg (extremely toxic); Dermal (LD50, rabbit): no quantitative data, considered highly toxic; Inhalation: Extremely hazardous
Chronic Effects: Long-term exposure leads to cancer (lung, skin), liver and kidney damage, neurological disorder, skin changes
Carcinogenic Status: Classified by IARC as Group 1 Carcinogen due to arsenic content
Reproductive Toxicity: Documented impacts on fertility and fetal development from arsenic compounds
Sensitization: Can cause allergic skin and respiratory reactions
Other Health Effects: Chronic poisoning results in melanosis, keratosis, peripheral vascular disease, impact on hematopoietic system; may cause death in severe cases
Toxicity to Aquatic Life: Highly toxic to aquatic organisms including fish, invertebrates, algae
Persistence and Degradability: Persistent in soils and sediments; does not break down easily; bioaccumulates in living organisms
Bioaccumulation Potential: High; arsenic accumulates in aquatic life and food chains
Mobility in Soil: Low solubility means it stays where spilled; though acid rain can raise mobility
Other Adverse Effects: May seriously disrupt ecosystems, affect drinking water and food supplies; impacts plants and soil bacteria, endangers wildlife down the exposure chain
Disposal Methods: Treat as hazardous waste under US EPA (RCRA) or equivalent systems worldwide; use licensed hazardous waste disposal contractor; do not landfill or incinerate in open air
Packaging: Contain in sealed, clearly labeled containers; include hazard symbols and regulatory statements
Contaminated Packaging: Use dedicated hazardous waste procedures for all items in contact
Disposal Restrictions: Do not allow material to contaminate ground, surface water, or sewage systems; never dispose via regular municipal waste
Waste Code (US): D004 (Arsenic)
UN Number: UN 1557
Proper Shipping Name: Arsenic compound, solid, n.o.s. (includes Copper Arsenite)
Transport Hazard Class: 6.1 (Toxic substance)
Packing Group: II
Labels: Toxic, Environmental hazard
Transport Precautions: Keep container upright, dry and tightly closed; isolate from food, feed, and incompatible substances during transit; carry emergency response information on board; shipments need compliance with ADR/RID, IMDG, IATA
US Regulations: TSCA Listed, SARA Title III Section 313 (Arsenic compounds, Copper); OSHA highly hazardous chemical; subject to CERCLA reporting
EU Regulations: CLP Regulation (EC) No 1272/2008—Acute Toxin 2, Carcinogen 1; REACH Registration required
Other Regulations: Covered by international environmental and workplace health laws; strict controls on use, discharge, disposal—refer to local jurisdictional guidance
Labeling Requirements: Includes chemical hazard symbols, risk phrases, supplier details, and emergency contact number
Restrictions: Use regulated by pesticide and hazardous chemical authorities worldwide; prohibited in many consumer and agricultural applications due to toxicity and ecosystem risk
