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Product Name: Basic Zinc Chloride
Chemical Formula: ZnCl2 ⋅ xH2O
Common Trade Names: Zinc monochloride, Zinc dichloride
CAS Number: 57597-51-6 (varies with hydration)
Manufacturer: Registered supplier or chemical distributor
Recommended Use: Galvanizing, textile processing, chemical synthesis, electroplating, wood preservation, water treatment
Emergency Contact: National poison control center, local emergency services, company-specific emergency line
GHS Classification: Acute Toxicity—Oral, Hazardous to Eyes, Skin Corrosive
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage, harmful if swallowed, may cause respiratory irritation
Pictograms: Corrosive, exclamation mark
Precautionary Phrases: Avoid breathing dust or fumes, use personal protective equipment, wash hands after handling, avoid release to the environment
Zinc Chloride Content: 83–98% (hydrate varies)
Chemical Identity: Basic Zinc Chloride
Impurities: May contain traces of lead, cadmium, or other metal ions depending on grade
Molecular Weight: Around 136.3 (anhydrous basis)
Synonyms: Butter of zinc, zinc butter
Inhalation: Remove person to fresh air, keep comfortable, seek medical attention if symptoms continue
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water, seek medical help for burns
Eye Contact: Immediately flush eyes with clean water for at least 15 minutes, hold eyelids apart, get medical help
Ingestion: Rinse mouth, do not induce vomiting, seek prompt medical advice
Symptoms: Burning pain, coughing, redness, blistering, severe eye damage possible
Flammability: Product not flammable
Combustion Products: May emit toxic fumes including hydrogen chloride and zinc oxides
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Fire-Fighting Precautions: Wear fully protective gear and self-contained breathing apparatus
Special Hazards: Contact with metals or strong reducing agents can create hazardous gases
Personal Precautions: Evacuate unnecessary personnel, use protective clothing and breathing protection
Spill Containment: Gather up spilled material with shovel or broom, transfer to suitable closed container
Clean-up Methods: Avoid dry sweeping (prevent dust clouds), use damp methods or vacuum with HEPA filter, ventilate spill area
Environmental Precautions: Prevent product and solutions from reaching waterways or drains
Waste Disposal: Dispose through a licensed hazardous waste facility, follow local rules
Handling Precautions: Avoid contact with skin, eyes, and clothing, wash thoroughly after use, use in well-ventilated areas
Storage Conditions: Keep container tightly closed and in a cool, dry, ventilated location
Incompatible Materials: Moisture, strong acids, strong bases, oxidizers, and metals such as sodium, potassium
Storage System Requirements: Use corrosion-resistant containers, keep away from food and feed
Exposure Limits: ACGIH TLV for zinc chloride fume—1 mg/m3 (TWA), 2 mg/m3 (STEL)
Engineering Controls: Provide local exhaust ventilation, safety showers, eyewash stations
Personal Protective Equipment: Chemical-resistant gloves, safety goggles, face shield, long-sleeve protective clothing, NIOSH-approved respirator for dust/mist
Hygiene Practices: No eating, drinking, or smoking during handling, wash hands thoroughly before breaks and at end of shift
Appearance: White to grayish crystalline powder or granular solid
Odor: Odorless
pH (1% solution): Acidic, typically around 4.0
Melting Point: 275°C (decomposes)
Solubility: Soluble in water, ethanol, glycerol
Density: About 2.91 g/cm3
Vapor Pressure: Negligible at room temperature
Boiling Point: 732°C (sublimes)
Reactivity: Reacts with moisture, acids, bases, metals, and oxidizers
Partition Coefficient Log Kow: Not applicable to inorganic salts
Chemical Stability: Stable under normal dry conditions
Reactivity: Moisture-sensitive, reacts vigorously with water, acids, bases, strong oxidizers
Hazardous Reactions: Can generate hydrogen chloride when in contact with water or acid, can corrode metals
Polymerization: Not known to occur
Decomposition Products: Hydrochloric acid, zinc oxides
Acute Toxicity: LD50 (oral, rat): 350 mg/kg, can be harmful if swallowed
Skin Corrosion/Irritation: Strong irritant, corrosive to skin
Eye Damage/Irritation: Severe irritant, risk of permanent eye damage
Sensitization: Rare, but possible in repeated or prolonged contact
Chronic Toxicity: May cause respiratory, gastrointestinal, liver, or kidney disturbances from long-term exposure
Symptoms: Throat, mouth, and stomach pain, vomiting, diarrhea, severe skin and eye burns
Aquatic Toxicity: Toxic to aquatic life, LC50 (fish, 96 h): 0.1–1 mg/L (varies by species)
Persistence and Degradability: Product remains in inorganic form, does not degrade
Bioaccumulation: Zinc can accumulate in aquatic organisms
Mobility in Soil: Moves through soil, may reach groundwater
Environmental Fate: Large releases harm aquatic and terrestrial environments, disrupt metal balance in water systems
Waste Treatment Methods: Small quantities—dilute and neutralize following local rules; large quantities—deliver to approved hazardous waste handler
Packaging Disposal: Decontaminate empty containers before recycling or disposal, ensure labels are removed
Environmental Precautions: Do not discharge concentrated waste to drains, soil, or open water
Regulatory Requirements: Storage, transportation, and disposal regulated under local, regional, and international chemical control laws
UN Number: UN 2331
Proper Shipping Name: Zinc Chloride, solid
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: III
Labels Required: Corrosive (Class 8)
Special Precautions: Protect from moisture, do not stack heavy items on top, follow spill and emergency procedures during transit
OSHA Regulations: Listed as hazardous, requires SDS and workplace controls
TSCA Inventory: Chemical present
EU Classification: Harmful, Irritant, Dangerous for Environment
REACH Registration: Compliant products registered for industrial and professional use
Other: National and local workplace safety and environmental protection acts apply, including reporting for quantities above reportable thresholds
