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Product Name: Zinc Powder
Chemical Formula: Zn
CAS Number: 7440-66-6
Synonyms: Zinc Dust, Fine Zinc, Metallic Zinc Powder
Recommended Use: Galvanizing, anti-corrosion coatings, chemical reactions, laboratory research
Manufacturer Details: Name, address, emergency contact phone number, email of supplier or manufacturer
GHS Classification: Flammable Solid (Category 2), Acute Aquatic Toxicity (Category 1), Specific Target Organ Toxicity, Single Exposure (Category 3, respiratory system)
Label Elements: Flame, Environment, Exclamation mark symbol, Signal word: Danger
Hazard Statements: May form explosive mixtures with air, causes respiratory irritation, very toxic to aquatic life
Precautionary Statements: Avoid breathing dust, keep away from open flames, avoid release to environment, use personal protective equipment as required
Pictograms: Flammable, environmental hazard, exclamation mark
Chemical Identity: Zinc
Concentration: ≥ 98%
Chemical Formula: Zn
CAS Number: 7440-66-6
Impurities: Minor traces of lead, cadmium, iron or other metals below reportable threshold
Inhalation: Remove to fresh air, keep person warm and at rest, seek medical attention if symptoms like coughing, shortness of breath or irritation occur
Skin Contact: Wash affected area with soap and water, remove contaminated clothing, medical attention if irritation persists
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, seek medical attention if irritation occurs
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical advice
Symptoms to Watch For: Difficulty breathing, redness, swelling, nausea or confusion
Suitable Extinguishing Media: Dry sand, Class D extinguishing agent, special powder for metal fires
Unsuitable Extinguishing Media: Water, carbon dioxide, foam—risk of explosion or violent reaction
Specific Hazards: Produces flammable hydrogen gas with water, potentially explosive dust-air mixtures, hazardous metal oxide fumes may form
Firefighting Instructions: Remove containers from fire area, use protective gear, prevent run-off entering drains, use self-contained breathing apparatus
Special Protective Equipment: Full firefighting turn-out gear, eye and face protection, heat-resistant gloves
Personal Precautions: Wear protective mask, gloves, goggles, avoid creating dust, ventilate area
Environmental Precautions: Prevent release into soil, drains, waterways, inform relevant authorities if entry to environment occurs
Containment: Use spark-proof tools to sweep up, shovel or collect spilled powder, keep material in closed, labeled container
Cleanup Methods: Gather using dry methods, avoid water, place in secure disposal container for further handling
Precautions for Handling: Always handle in well-ventilated spaces, avoid dust generation, keep away from ignition sources, wear personal protective equipment
Safe Storage Conditions: Store in cool, dry, well-ventilated area, keep tightly sealed in original or compatible containers, store away from acids, halogens, strong oxidizers and moisture, ground all storage equipment to prevent static discharge
Incompatible Materials: Acids, water, halogens, ammonium nitrate, chlorine, sulfur
Occupational Exposure Limits: OSHA PEL (Total): 15 mg/m³ (dust), ACGIH TLV: 2 mg/m³ (respirable fraction)
Engineering Controls: Local exhaust ventilation, process enclosures, explosion-proof electricals
Personal Protective Equipment: Safety glasses or chemical goggles, impervious gloves, dust mask or respirator (NIOSH-approved), protective clothing to minimize skin contact
Hygiene Measures: Do not eat, drink or smoke during use, wash hands thoroughly after handling, remove contaminated clothing before entering eating areas
Appearance: Fine gray metallic powder
Odor: Odorless
pH: Not applicable
Melting Point: 419.5°C
Boiling Point: 907°C
Vapor Pressure: Negligible at room temperature
Flash Point: Not applicable
Explosion Limits: Dust in air forms explosive mixtures within 500-2000 g/m³
Solubility: Insoluble in water
Density: 7.1 g/cm³
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: 460°C
Evaporation Rate: Not applicable
Chemical Stability: Stable under recommended storage conditions, reactive with acids and oxidizers
Conditions to Avoid: Exposure to water, moisture, elevated temperatures, open flames, static electricity
Materials to Avoid: Strong acids, alkalis, oxidizers, halogens, ammonium compounds
Hazardous Decomposition Products: Zinc oxides, hydrogen gas (in presence of water or acids), which are hazardous if inhaled
Hazardous Polymerization: Does not occur
Routes of Exposure: Inhalation, eye and skin contact, ingestion
Symptoms of Exposure: Zinc fume fever with chills, fever, cough and muscle pain (from inhaling fumes/dust), irritation of skin, eyes, and mucous membranes
Acute Toxicity: LD50 (oral, rat): >2000 mg/kg, generally low acute toxicity
Chronic Effects: Prolonged or repeated exposure may cause anemia or other blood disorders
Carcinogenicity: Not listed as carcinogenic by IARC, NTP, OSHA
Sensitization: No reliable data on skin or respiratory sensitization, but individual sensitivity possible
Aquatic Toxicity: Highly toxic to aquatic organisms, severe effects in water environments
Persistence and Degradability: Not rapidly degradable, persisting as particulate metal in the environment
Bioaccumulation Potential: Potential to bioaccumulate in fish and aquatic species
Mobility in Soil: Low, binds with soils and sediments, limited solubility
Other Adverse Effects: Potential risk of long-term environmental damage, strict containment and disposal recommended
Waste Handling: Collect in clearly labeled containers, do not dispose of in general waste or sewers
Disposal Methods: Use licensed hazardous waste processor for recycling or disposal according to local, regional, and national regulations
Environmental Precautions: Prevent uncontrolled release to environment, notify authorities if large scale spillage occurs
Contaminated Packaging: Clean thoroughly before reuse or send for proper disposal as hazardous waste
UN Number: UN 3077
Proper Shipping Name: Environmentally hazardous substance, solid, n.o.s (Zinc powder)
Hazard Class: 9 (Miscellaneous hazardous materials)
Packing Group: III
Labeling Requirements: Environmentally hazardous symbol, standard transport hazard symbols
Transport Mode Precautions: Secure containers tightly, handle with care to prevent dust generation, store away from food, acids, ammonium salts, moisture sources
TSCA Status: Listed
REACH Registration: Registered, check substance registration numbers
OSHA: Listed hazardous chemical, subject to workplace exposure limits
EPA: Regulated as hazardous waste if discarded, subject to reporting for accidental releases
SARA Title III: Listed as reportable quantity substance under Section 313
Other Regulations: Compliance required with regional, national, and local laws regarding chemical hazards, waste management, worker protection, and environmental impact
