Material Safety Data Sheet: Zinc Hydroxy Stannate

Identification

Product Name: Zinc Hydroxy Stannate
Chemical Formula: ZnSn(OH)₆
CAS Number: 12027-96-2
Synonyms: Zinc tin hydroxide, Zinc Stannate Hydroxide
Recommended Uses: Flame retardant in plastics, flame proofing formulations, coatings
Manufacturer Details: Found on product label and supplier folder
Emergency Phone Number: Company emergency response listed on SDS

Hazard Identification

GHS Classification: Not classified as hazardous under relevant criteria
Hazard Statements: May cause mild irritation to eyes, skin, respiratory tract
Pictograms: None required under GHS
Precautionary Statements: Avoid breathing dust. Use protective gear. Wash thoroughly after handling. Handle under suitable conditions to reduce exposure risk
Target Organs: Eyes, skin, and lungs after repeated or prolonged exposure
Other Hazards: Dust can create slight mechanical irritation, no acute toxicity identified

Composition / Information on Ingredients

Chemical Name: Zinc Hydroxy Stannate
Concentration: 98-100%
Impurities: Minor traces of tin oxide (<1%), occasionally zinc oxide (<1%)
Other Constituents: No hazardous stabilizers or additives

First Aid Measures

Inhalation: Move person to open air. If breathing is abnormal, seek medical help. Dust inhalation can cause mild coughing or short-term discomfort
Skin Contact: Remove contaminated clothing. Wash skin generously with soap and water. Seek doctor if irritation builds up or persists
Eye Contact: Rinse eyes with water for several minutes. Remove contact lenses if possible. Seek medical advice if discomfort continues
Ingestion: Rinse mouth with water, do not induce vomiting. Drink water to dilute. Medical care is recommended for large intake or persistent symptoms

Fire-Fighting Measures

Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Potential Hazards: Non-combustible under typical fire conditions. Involved containers may release a mixture of tin and zinc oxides in smoke or dust
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full gear
Advice: Avoid breathing fumes. Stay upwind and prevent runoff into water bodies

Accidental Release Measures

Personal Precautions: Use suitable personal protective equipment. Avoid dust contact with skin, eyes, and inhalation. Ensure proper ventilation
Environmental Precautions: Prevent material from entering drains, surface, and ground water. Collect massive spills for safe disposal
Cleanup Methods: Sweep up or vacuum. Transfer material into properly labeled containers for recycling or allowed disposal. Clean site with wet methods to reduce airborne dust

Handling and Storage

Handling: Avoid creating dust. Use local exhaust ventilation when possible. Adopt safe work practices to limit exposure
Storage Conditions: Store in original tightly sealed containers in dry, ventilated area. Keep away from food and drink. Avoid direct sunlight and sources of humidity
Other Notes: Keep containers upright and properly labeled. Do not reuse empty containers unless cleaned

Exposure Controls and Personal Protection

Occupational Exposure Limits: No exposure limit for Zinc Hydroxy Stannate set by OSHA, NIOSH, or ACGIH. General dust limits apply: Total dust 10 mg/m³, respirable dust 3 mg/m³
Engineering Controls: Local exhaust and general room ventilation recommended. Closed handling systems minimize dust exposure
Personal Protection: Use dust mask (N95/P2 or better), safety goggles, chemical-resistant gloves, overalls, and closed footwear. Wash after handling and before eating or drinking

Physical and Chemical Properties

Appearance: White, fine, odorless powder
Odor: None
pH (10% suspension): 7–9
Melting Point: Decomposes above 170°C
Boiling Point: Not applicable
Solubility in Water: Insoluble; slight solubility improves in strong acids/bases
Density: 3.3–3.6 g/cm³
Vapor Pressure: Not applicable
Flash Point: Not flammable
Partition Coefficient: Not measured
Particle Size: Median diameter varies (0.5–5 µm)

Stability and Reactivity

Chemical Stability: Stable under typical conditions and normal temperatures
Conditions to Avoid: Prolonged high temperature or exposure to strong acids/bases that could decompose the compound
Incompatible Materials: Strong acids, strong bases; may react to yield tin or zinc oxides and water
Hazardous Decomposition Products: Tin oxide fumes, zinc oxide, water vapor on extreme heating

Toxicological Information

Acute Toxicity: Data indicate low toxicity after application to skin, inhalation, or ingestion
Routes of Exposure: Eyes, skin, respiratory tract, digestive tract
Symptoms: Mild irritation of eyes, skin, mucous membranes possible. No reports of chronic health hazards under normal use
Carcinogenicity: Classified as non-carcinogenic by regulatory agencies (IARC, NTP, OSHA)
Chronic Effects: No evidence of reproductive toxicity, mutagenicity, or other long-term health effects

Ecological Information

Aquatic Toxicity: Low toxicity for aquatic organisms based on available information for component elements
Persistence and Degradability: Compound remains stable, not expected to degrade rapidly in environment
Bioaccumulation Potential: Not likely to bioaccumulate in aquatic or land-based food chains
Mobility in Soil: Low water solubility limits movement in ground or surface water
Other Adverse Effects: Dust spill could cause physical impact on aquatic life by covering surfaces

Disposal Considerations

Product Disposal: Dispose as non-hazardous chemical waste in accordance with local, state, and federal regulations. Do not discharge to natural waters
Packaging Disposal: Empty containers should be cleaned before recycling or disposal. Always follow community guidelines on container recycling or destruction
Contaminated Waste: Manage spills with absorbed materials as chemical waste

Transport Information

UN Number: Not subject to transport regulations
Transport Hazard Class: Not considered dangerous goods by ADR, IMDG, IATA, DOT
Packing Group: None assigned
Special Precautions: Avoid creation of dust in loading/unloading. Handle containers carefully to prevent rupture or spillage

Regulatory Information

Inventory Listings: Registered on TSCA (US), EINECS/ELINCS (EU), AICS (Australia), DSL (Canada), ENCS (Japan), PICCS (Philippines), and other global databases
Regulatory Status: Not classified as hazardous or controlled under REACH, US OSHA Hazard Communication Standard, or Canadian WHMIS
Label Requirements: Proper identification, pictograms not required under GHS
Other Regulations: Product doesn't fall under rules for hazardous air pollutants, persistent bioaccumulative toxic chemicals, or chemical accident prevention. Always review region-specific labeling and use requirements.