Zinc Nitrate Extra Pure

1. Basic Identification Attributes

Chemical Name: Zinc Nitrate
CAS Number: 10196-18-6
HS Code: 2834.29.00
Molecular Formula: Zn(NO₃)₂·6H₂O (common hydrated form)
Synonyms:

• Zinc nitrate hexahydrate
• Zinc dinitrate
• Zinc nitrate hexahydrate reagent

2. Physical & Chemical Properties

Physical State: Crystalline solid (commonly hexahydrate)
Color & Odor: Colorless to white, odorless
Melting Point: ~36 °C (hexahydrate melts)
Boiling Point: Decomposes above 100 °C releasing nitrogen oxides
Density/Specific Gravity: ~2.28 g/cm³ (hexahydrate)
Solubility:

• Highly soluble in water (> 700 g/L at 20 °C)
• Slightly soluble in ethanol
  pH Level: Acidic solution (pH ~4 for 1% aqueous solution)
  Vapor Pressure & Volatility: Low volatility, but releases NOx gases on heating
  Flash Point: Not flammable
  Autoignition Temperature: Not applicable
  Viscosity: Not applicable

3. Safety & Hazard Attributes

Hazard Class (GHS Classification):

• Oxidizing solid (Category 3)
• Acute toxicity (oral, Category 4)
• Eye irritation (Category 2A)
• Specific target organ toxicity — single exposure (Category 3, respiratory tract irritation)
  NFPA Ratings:
• Health: 2
• Flammability: 0
• Reactivity: 1
  Exposure Limits:
• No specific OSHA PEL; general nuisance dust limits apply
  Reactivity:
• Stable under recommended storage conditions
• Reacts with reducing agents, releases nitrogen oxides upon decomposition

4. Storage & Handling Attributes

Storage Conditions:

• Store in a cool, dry, well-ventilated area away from incompatible materials
• Protect from moisture and direct sunlight
  Incompatible Materials:
• Strong reducing agents
• Combustible materials
• Alkalis and bases
  Container Type:
• Polyethylene or glass bottles, tightly sealed
  Shelf Life & Expiration Date:
• Stable for several years if kept dry and sealed
  Special Handling Requirements:
• Avoid dust generation and inhalation
• Use protective gloves and goggles

5. Regulatory & Compliance Attributes

Regulatory Status:

• Listed in REACH, TSCA, and other major inventories
• Approved for laboratory and research use, but not for food or pharmaceutical ingestion
  Transportation Restrictions:
• Classified as oxidizing solid (UN number 1477) requiring standard transport precautions
  Waste Disposal Method:
• Dispose according to local hazardous waste regulations
• Avoid release to environment

6. Environmental & Health Impact

Ecotoxicity:

• Toxic to aquatic organisms, may cause long-term adverse effects
  Persistence in Environment:
• Soluble and mobile in water systems
  Carcinogenicity/Mutagenicity:
• Not classified as carcinogenic or mutagenic
  Biodegradability:
• Inorganic salt; does not biodegrade but dilutes and disperses in aquatic systems