© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Product Name: Zinc Arsenite
Chemical Formula: ZnAsO3
CAS Number: 12068-90-5
Synonyms: Trizinc diarsenite, Zinc arsenite oxide
Recommended Use: Laboratory chemical, industrial processing
Manufacturer: Refer to supplier or distributor contact
Emergency Contact Number: Refer to local emergency services
Classification: Acute toxicity (oral, dermal, inhalation), Carcinogenicity, Specific target organ toxicity
Signal Word: Danger
Hazard Statements: Highly toxic by ingestion, inhalation, and skin contact. Causes damage to organs, suspected of causing cancer, poses environmental hazard.
Pictograms: Skull and crossbones, Health hazard, Environment
Precautionary Statements: Avoid all exposure, wear suitable protective gear, wash hands after handling, do not eat/drink/smoke near material, prevent release to the environment.
Chemical Identity: Zinc Arsenite
CAS Number: 12068-90-5
Concentration: 100% (substance)
Impurities: Heavy metals (trace), moisture content negligible
Other Components: None intentionally present
Inhalation: Move person to fresh air, keep patient at rest, administer oxygen if breathing difficult, seek medical attention immediately
Skin Contact: Remove contaminated clothing, vigorously wash skin with soap and plenty of water for at least 15 minutes, consult a doctor
Eye Contact: Rinse eyes cautiously with water for several minutes, remove contact lenses if easily possible, continue rinsing, obtain medical help
Ingestion: Rinse mouth, do not induce vomiting, drink water if conscious, seek urgent medical attention, monitor for arsenic poisoning symptoms
Important Symptoms and Effects: Nausea, vomiting, abdominal pain, headache, convulsions, potential organ failure
Immediate Medical Attention: Required due to high toxicity and risk of acute poisoning, consider chelation therapy
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, or foam
Unsuitable Media: Avoid water streams, potential for toxic runoff
Fire Hazards: Toxic fumes of arsenic oxides and zinc compounds may evolve on combustion
Special Protective Equipment: Full protective clothing, self-contained breathing apparatus
Advice: Isolate area, keep upwind, prevent run-off from entering drains or watercourses
Personal Protection: Deploy chemical-resistant gloves, safety goggles, laboratory coat, approved respirator
Environmental Precautions: Prevent spillage from contacting soil, drains, and waterways; highly toxic to aquatic life
Methods for Cleanup: Collect spilled material in containers for disposal, avoid dust generation, use HEPA-filtered vacuum or wet sweeping, ventilate area well, wash spill site with water after cleanup
Notification Procedures: Report significant releases to environmental authorities
Safe Handling: Work with local exhaust ventilation to minimize exposure, avoid inhalation, contact with skin or eyes
Hygiene Measures: Wash thoroughly after handling, do not eat, drink, or smoke during use, keep work clothes separate
Safe Storage: Keep container tightly closed in a cool, dry, secure, well-ventilated place; store away from food and feed, incompatible substances (oxidizers, acids), lock storage to prevent unauthorized use
Container Materials: Use corrosion-resistant containers, label with hazard information
Exposure Limits: OSHA PEL (as arsenic): 0.01 mg/m3 TWA; ACGIH TLV (as arsenic): 0.01 mg/m3
Engineering Controls: Use fume hood, local exhaust ventilation
Personal Protection: NIOSH-approved respirator (P100 or higher), impervious gloves (nitrile, neoprene), safety goggles, full protective clothing
Environmental Controls: Prevent release to environment, use spill containment measures
Appearance: White to pale yellow crystalline powder
Odor: Odorless
pH: Not available
Melting Point: Decomposes before melting
Boiling Point: Not applicable
Flash Point: Not flammable
Solubility: Slightly soluble in water
Relative Density: Approximately 5.3 g/cm3
Vapor Pressure: Negligible
Partition Coefficient: Not available
Decomposition Temperature: Above 200°C
Molecular Weight: 224.3 g/mol
Chemical Stability: Generally stable under recommended storage conditions
Reactivity: Reacts with strong acids and oxidizing agents
Hazardous Reactions: May generate toxic arsenic oxides upon heating or reaction with acids
Conditions to Avoid: Heat, moisture, incompatible substances
Hazardous Decomposition Products: Arsenic oxides, zinc oxides, potentially flammable gases if mixed with certain chemicals
Acute Toxicity: LD50 oral (rat): extremely low, estimated below 5 mg/kg for arsenic compounds
Routes of Exposure: Inhalation, ingestion, skin, eyes
Symptoms: Abdominal pain, severe headaches, nausea, vomiting, convulsions, multi-organ failure
Carcinogenicity: Classified as carcinogenic to humans (IARC: Group 1, arsenic compounds)
Chronic Effects: Skin lesions, damage to liver, kidneys, nervous system, bone marrow
Sensitization: Prolonged exposure may cause skin sensitization and dermatitis
Aquatic Toxicity: Very toxic to aquatic life (LC50 for fish, crustaceans: extremely low, in microgram per liter range)
Persistence: Persists in soil and sediments, potential for bioaccumulation in organisms
Degradability: Not readily biodegradable, remains in environment
Mobility in Soil: May leach to groundwater under certain conditions
Other Adverse Effects: Arsenic compounds can cause death in wildlife, contaminate water supplies, affect food safety
Disposal Methods: Submit hazardous waste to licensed chemical disposal contractor, avoid landfill or drain disposal
Containers: Do not reuse, puncture, or incinerate contaminated packaging; triple rinse, label hazardous
Precautions: Notify authorities as required by law, prevent release to the environment, seek advice from local environmental agencies
Residues: Treat as hazardous waste, do not mix with nonhazardous waste streams
UN Number: 1557 (arsenic compound, solid, n.o.s.)
Proper Shipping Name: Toxic Solid, Inorganic, n.o.s. (contains Zinc Arsenite)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Special Precautions: Secure containers, separate from food and feed cargo, ensure labeling and documentation, restrict access in transit
Marine Pollutant: Yes, highly toxic to aquatic organisms
OSHA: Regulated as highly toxic and carcinogenic substance
EPA: Listed hazardous substance, strict disposal restrictions, subject to reporting under CERCLA and EPCRA
TSCA: Listed
REACH: Subject to restrictions, may require authorization or notification in EU
Other Local/National Regulations: Check with relevant authorities for specific rules on use, handling, and disposal
Label Elements: Required warnings for carcinogenicity, toxicity, environmental hazard as per GHS criteria
