MSDS for Stannous Chloride Anhydrous

Identification

Product Name: Stannous Chloride Anhydrous
Chemical Formula: SnCl₂
Synonyms: Tin(II) chloride anhydrous, Tin dichloride
Recommended Use: Laboratory chemicals, manufacturing of dyes, tin plating, mordant in textile dyeing
Manufacturer Details: Manufacturer’s name and address as listed on packaging, emergency contact information provided on label
CAS Number: 7772-99-8

Hazard Identification

Hazard Classification: Acute toxicity (oral, dermal), skin corrosion, serious eye damage
Signal Word: Danger
Hazard Statements: Harmful if swallowed, causes severe skin burns and eye damage, may cause respiratory irritation
Precautionary Statements: Wear protective gloves and eye/face protection, avoid breathing dust, wash hands thoroughly after handling, do not eat or drink when using this chemical
GHS Pictograms: Corrosive, exclamation mark, health hazard

Composition / Information on Ingredients

Chemical Name: Stannous Chloride Anhydrous
Concentration: 98-100%
CAS Number: 7772-99-8
Impurities: Trace metal oxides, moisture may be present if seal is compromised
Other Identifiers: EINECS: 231-868-0

First Aid Measures

Inhalation: Remove to fresh air, seek medical attention if symptoms like coughing, shortness of breath, or irritation persist
Skin Contact: Remove contaminated clothing, wash skin with soap and water for at least 15 minutes, seek immediate medical advice for burns or persistent irritation
Eye Contact: Rinse eyes cautiously with water for at least 15 minutes, remove contact lenses if present and easy to do, seek immediate medical help
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical advice, never give anything by mouth to an unconscious person
Symptoms: Burning, redness, blistering, severe irritation, nausea, abdominal pain

Fire-Fighting Measures

Suitable Extinguishing Media: Use dry chemical, carbon dioxide, or appropriate foam, avoid water if product reacts vigorously
Special Hazards: Emits toxic fumes of hydrogen chloride and tin oxides under fire conditions
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective clothing
Advice for Firefighters: Move container from fire area if it can be done without risk, stay upwind, prevent runoff from entering drains
Flash Point: Non-combustible, but may react with water or moist air to form acids

Accidental Release Measures

Personal Precautions: Avoid contact with skin, eyes, and clothing, use appropriate personal protective equipment including gloves and goggles, ensure adequate ventilation
Environmental Precautions: Prevent entry into drains, surface water, or soil, notify authorities if large spill enters waterways
Cleanup Methods: Absorb spill with inert material like sand, collect into suitable containers for disposal, wash spill area with plenty of water, avoid dust generation
Decontamination: Rinse contaminated area with dilute sodium bicarbonate solution followed by plenty of water
Emergency Procedures: Evacuate area, ventilate space, restrict unnecessary personnel entry

Handling and Storage

Handling: Keep container tightly closed when not in use, use with local exhaust or general room ventilation, avoid generating dust, wash hands thoroughly after handling
Storage: Store in a cool, dry, well-ventilated place, away from incompatible substances like strong acids, strong bases, and oxidizing agents, protect from moisture
Precautions: Use proper personal protective equipment, label containers clearly, avoid storing with food or drinks
Bulk Storage: Keep large quantities in corrosion-resistant containers with tight sealing

Exposure Controls and Personal Protection

Exposure Limits: TLV (ACGIH): 2 mg/m³ as tin, OSHA PEL: 2 mg/m³ (TWA)
Engineering Controls: Use local exhaust ventilation, safety shower and eyewash station in work area
Personal Protection: NIOSH-approved respirators for dust, chemical-resistant gloves (nitrile, neoprene), goggles or face shield, lab coat or apron
Hygiene Measures: Do not eat, drink or smoke in work area, wash hands thoroughly after handling

Physical and Chemical Properties

Appearance: White crystalline solid or powder
Odor: Odorless
Molecular Weight: 189.6 g/mol
Melting Point: 246°C
Boiling Point: Decomposes without boiling
Solubility: Reacts with water, soluble in alcohol and hydrochloric acid
Density: 3.95 g/cm³
pH (solution): Acidic
Vapor Pressure: Negligible at room temperature
Stability: Reacts with water, sensitive to moisture in air
Other Properties: Non-flammable, decomposes on heating to produce toxic fumes

Stability and Reactivity

Stability: Stable in dry, airtight containers; exposure to moisture causes hydrolysis producing hydrochloric acid gas
Incompatible Materials: Strong oxidizers, strong acids, alkali metals, moisture
Hazardous Decomposition Products: Hydrogen chloride, tin oxides
Polymerization: Does not undergo hazardous polymerization
Conditions to Avoid: Air and moisture contact, high temperatures, heat

Toxicological Information

Acute Toxicity: Oral LD₅₀ (rat): 700 mg/kg
Chronic Toxicity: Repeated or prolonged exposure may cause organ damage, skin sensitization
Routes of Exposure: Inhalation, ingestion, skin, eye contact
Symptoms from Exposure: Nausea, vomiting, abdominal cramps, skin burns, respiratory irritation, eye damage
Carcinogenicity: No evidence of carcinogenic properties
Other Effects: May cause adverse effects on kidneys, liver, central nervous system with long-term exposure

Ecological Information

Toxicity to Aquatic Life: Harmful to aquatic organisms, may cause long-term adverse effects in aquatic environments
Persistence and Degradability: Does not readily degrade, hydrolyzes to form tin oxides and hydrochloric acid
Bioaccumulation: Potential for bioaccumulation in aquatic organisms
Mobility in Soil: Reacts quickly with moisture, tends to remain in upper layers of soil
Other Ecological Data: Avoid uncontrolled release to environment, product residues must be contained and disposed of properly

Disposal Considerations

Disposal Methods: Treat as hazardous chemical waste, collect in sealed, labeled containers
Incineration: May be incinerated in properly equipped facility
Recycling: Recovery of tin possible if practical
Contaminated Packaging: Should be handled as hazardous waste, thoroughly rinsed and punctured before disposal
Regulatory Requirements: Comply with local, state, and federal regulations for hazardous waste, consult with environmental authorities before disposal

Transport Information

UN Number: UN 3260
Proper Shipping Name: Corrosive solid, acidic, inorganic, n.o.s. (Stannous Chloride Anhydrous)
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: II
Packaging Instructions: Use corrosion-resistant, tightly sealed packaging, ensure containers are clearly labeled
Special Precautions: Avoid shipment with incompatible materials, ensure driver knows hazards of cargo, spill response measures available
Labels: Corrosive label required

Regulatory Information

Global Inventory Status: Listed in TSCA (US), EINECS/ELINCS (EU), DSL (Canada), ENCS (Japan)
OSHA: Hazardous chemical, regulated under OSHA Hazard Communication Standard
SARA Title III: Subject to SARA Section 313 reporting for tin compounds
RCRA: May be regulated as hazardous waste
REACH: Subject to substance restrictions for manufacture and use in EU
Other Regulations: Classified as corrosive material, workplace exposure must meet regulated standards, transport by road, rail, air subject to IMDG, ICAO, ADR guidelines, user must comply with local and national legislation on occupational health and safety