Material Safety Data Sheet for Bismuth Silicate

Identification

Product Name: Bismuth Silicate
Chemical Formula: Bi2SiO5
Synonyms: Bismuth(III) silicate
CAS Number: 12039-54-6
Recommended Use: Laboratory analysis, glass manufacturing, ceramic applications
Supplier Details: Manufacturer's contact information, address, emergency telephone

Hazard Identification

Hazard Class: Not classified as hazardous under normal usage
Signal Word: Not required
Potential Health Effects: Inhalation can lead to mild respiratory irritation; skin and eye contact may cause mechanical irritation; ingestion may disturb gastrointestinal tract
GHS Label:** No symbol required
Precautionary Statements: Avoid producing dust, ensure good ventilation, wash hands thoroughly after handling

Composition / Information on Ingredients

Chemical Component: Bismuth silicate
CAS Number: 12039-54-6
Concentration: 100%
Impurities: Possible traces of other bismuth and silica compounds, generally less than 1%

First Aid Measures

Inhalation: Move to fresh air, keep comfortable for breathing, seek medical advice if symptoms develop
Skin Contact: Remove contaminated clothing, wash skin with plenty of water and soap
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, consult a medical professional if irritation persists
Ingestion: Rinse mouth, drink plenty of water, seek medical attention for discomfort

Fire-Fighting Measures

Suitable Extinguishing Media: Use agents suitable for surrounding area; product is not flammable
Special Hazards: No unusual fire or explosion hazards expected; toxic fumes may form in case of combustion of surrounding material
Protective Equipment: Firefighters should wear self-contained breathing apparatus and protective clothing to avoid exposure to decomposition products
Specific Methods: Use normal precautions for dealing with chemical fires; avoid dust and water runoff contamination

Accidental Release Measures

Personal Precautions: Avoid breathing dust, ventilate area, use appropriate personal protective equipment
Environmental Precautions: Prevent further leakage or spillage if safe to do so, avoid entry into drains, waterways, or soil
Methods for Clean-up: Sweep or scoop spilled material, collect in suitable container for proper disposal, clean contaminated surfaces with water

Handling and Storage

Safe Handling: Minimize dust generation and accumulation, handle with gloves and eye protection, do not eat, drink, or smoke while using chemical
Conditions for Storage: Store in tightly closed containers in a dry, cool, well-ventilated location, keep away from incompatible substances such as strong acids
Other Recommendations: Label containers clearly, keep out of the reach of children and unauthorized personnel

Exposure Controls and Personal Protection

Exposure Limits: No established occupational exposure limits for bismuth silicate; control dust to permissible limits for nuisance dust
Engineering Controls: Use local exhaust ventilation in areas with dust generation, maintain eye wash stations
Personal Protective Equipment: Wear safety goggles, chemical-resistant gloves, dust mask or particulate respirator when exposures could exceed nuisance dust limits, lab coat or suitable protective clothing
Hygiene Measures: Wash hands after handling, remove and launder contaminated clothing, avoid touching eyes and face

Physical and Chemical Properties

Appearance: White or pale yellow powder
Odor: Odorless
Odor Threshold: Not applicable
pH: Not soluble in water
Melting Point: Decomposes above 1000°C
Boiling Point: Not applicable (decomposes before boiling)
Solubility: Insoluble in water
Vapor Pressure: Not applicable
Density: 7.2 – 8.0 g/cm³
Partition Coefficient: Not determined
Flash Point: Not flammable
Auto-Ignition Temperature: Not applicable
Evaporation Rate: Not relevant for solid
Particle Size: Varies with product grade

Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions
Possible Hazardous Reactions: No dangerous reactions known under normal use
Conditions to Avoid: Contact with strong acids and alkalis, moisture may affect integrity of packaging
Incompatible Materials: Strong acids
Hazardous Decomposition Products: May produce toxic bismuth oxides and silicon oxides at very high temperatures

Toxicological Information

Acute Toxicity: No acute toxicity data for bismuth silicate; analogues suggest low toxicity
Skin Corrosion/Irritation: May cause mild irritation on contact
Serious Eye Damage/Irritation: Mechanical irritation possible from dust
Respiratory Sensitization: No data; avoid prolonged exposure to dust
Germ Cell Mutagenicity: Not known to be mutagenic
Carcinogenicity: No ingredient listed as a carcinogen by IARC, NTP, or OSHA
Reproductive Toxicity: No evidence of reproductive toxicity
STOT (Specific Target Organ Toxicity): No data for repeated exposure; avoid breathing dust
Aspiration Hazard: Not an aspiration hazard

Ecological Information

Ecotoxicity: Little data available; insoluble in water so low mobility
Persistence and Degradability: Inorganic compound, not biodegradable
Bioaccumulative Potential: Bismuth compounds are not known to significantly bioaccumulate
Mobility in Soil: Low mobility due to insolubility
Other Adverse Effects: No major environmental hazards identified if managed properly

Disposal Considerations

Waste Treatment Methods: Dispose of as non-hazardous inorganic waste in accordance with local, regional, national, and international regulations
Packaging Disposal: Contaminated packaging should be handled as the product, thoroughly cleaned or sent for recycling or disposal
Special Precautions: Check waste codes according to local guidelines, avoid uncontrolled releases into the environment

Transport Information

UN Number: Not applicable
Proper Shipping Name: Bismuth silicate
Transport Hazard Class: Not regulated as dangerous goods
Packing Group: Not assigned
Environmental Hazards: Not a marine pollutant or hazard for air transport
Special Precautions for User: Ensure packaging is secure and clearly labelled during transit

Regulatory Information

TSCA Status: Listed in the United States Toxic Substances Control Act (TSCA) inventory
REACH Status (EU): Exempt or registered depending on tonnage and usage
OSHA Hazards: Not hazardous under OSHA Hazard Communication Standard
WHMIS Classification (Canada): Non-hazardous material
SARA Title III: Not subject to reporting under Sections 302, 304, or 313
Other Regulations: Users should consult local, regional, and national regulations regarding chemical safety