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Product Name: Chromium Nitrate
Chemical Formula: Cr(NO3)3·9H2O
Synonyms: Chromium(III) Nitrate Nonahydrate, Chromium Trinitrate
CAS Number: 7789-02-8
Recommended Use: Laboratory chemical, industrial processes, pigment production
Supplier Information: Name, address, contact number of manufacturer or distributor
Emergency Contact: Designated emergency phone number for acute incidents
GHS Classification: Oxidizing solids (Category 2), Acute toxicity oral (Category 4), Skin irritation (Category 2), Eye irritation (Category 2A)
Label Elements: Signal word "Warning", exclamation mark pictogram, oxidizer pictogram
Hazard Statements: May intensify fire; oxidizer, harmful if swallowed, causes skin and serious eye irritation
Precautionary Statements: Avoid release to environment, wash hands thoroughly after handling, wear protective gloves and eye/face protection, keep away from heat, sparks, open flames, and hot surfaces
Emergency Overview: Blue crystalline solid, may accelerate combustion, can cause irritation and burns
Chemical Name: Chromium(III) Nitrate Nonahydrate
Concentration: 98-100%
CAS Number: 7789-02-8
Impurities: Trace amounts of transition metals may be present, dependent on source
Inhalation: Move to fresh air, seek medical advice if symptoms develop (coughing, shortness of breath)
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with water and mild soap, consult physician for persistent irritation
Eye Contact: Flush eyes immediately with water for at least 15 minutes, hold eyelids apart, remove contact lenses if present, seek immediate medical attention
Ingestion: Rinse mouth, do not induce vomiting, drink water only if conscious, seek immediate medical care
Suitable Extinguishing Media: Use water spray, fog, or regular foam. Avoid dry chemicals, carbon dioxide, and halons as they may not be effective on oxidizers
Specific Hazards: Chromium nitrate can intensify fire, can decompose under heat to produce toxic gases (nitrogen oxides, chromium oxides)
Protective Equipment: Full protective gear and positive pressure self-contained breathing apparatus required
Special Precautions: Move containers from fire area if possible, cool fire-exposed containers with water, do not direct water stream at material
Personal Precautions: Evacuate unnecessary personnel, avoid contact with skin and eyes, use appropriate protective equipment
Environmental Precautions: Prevent further leakage or spillage if safe to do so, avoid discharge into drains, water courses, or soil
Methods for Cleanup: Sweep up or shovel material, avoid creating dust, use non-sparking tools, place in appropriate labeled waste container for proper disposal, ventilate area after cleanup
Handling: Handle with care, use only in well-ventilated areas, avoid breathing dust and contact with skin, eyes, clothing, wash hands thoroughly after handling, keep away from combustible materials and reducing agents
Storage: Store separate from incompatible substances (organics, reducing agents, strong bases), keep containers tightly closed and in a dry, cool, well-ventilated location, avoid exposure to direct sunlight and moisture, keep locked and away from unauthorized personnel, ensure secondary containment for large quantities
Exposure Limits: OSHA PEL: 0.5 mg/m³ (as Chromium(III)), ACGIH TLV: 0.5 mg/m³ (as Chromium(III))
Engineering Controls: Use with adequate local exhaust ventilation, use process enclosures when possible to minimize dust
Personal Protective Equipment: Wear safety glasses with side shields or goggles, chemical-resistant gloves (nitrile, neoprene), lab coat or apron, respiratory protection if ventilation inadequate
Hygiene Measures: Do not eat, drink, or smoke while using this product, wash thoroughly after handling and before meals, promptly remove contaminated clothing and wash before reuse
Appearance: Deep violet to blue-green crystalline solid
Odor: Odorless
pH (1% solution): Acidic, typically 2-3
Melting Point: ~60°C (sublimes without melting)
Boiling Point: Not applicable (decomposes before boiling)
Solubility: Highly soluble in water, soluble in alcohol
Density: Approximately 1.85 g/cm3 (nonahydrate form)
Vapor Pressure: Not applicable
Flash Point: Not applicable (not flammable)
Explosive Properties: Not explosive, but an oxidizer
Other: Decomposes when heated, producing toxic fumes
Chemical Stability: Stable under recommended storage conditions, gradually decomposes at elevated temperature
Reactivity: Strong oxidizer, reacts with combustibles and reducing agents
Incompatible Materials: Organic materials, strong reducing agents, flammable substances, powdered metals
Hazardous Decomposition Products: Nitrogen oxides, chromium oxides
Conditions To Avoid: Heat, moisture, contamination by organic materials, strong bases
Possible Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: May cause irritation of respiratory tract; ingestion may lead to nausea, vomiting, abdominal pain
Skin Contact: Redness, burning, possible ulceration on prolonged exposure
Eye Contact: Severe irritation, redness, pain, possible corneal damage
Chronic Effects: Long term exposure may lead to dermatitis, possible sensitization
Carcinogenicity: Chromium(III) compounds are not classified as carcinogenic by IARC or NTP
Additional Data: No known reproductive or developmental toxicity for chromium(III) salts
Toxicity to Aquatic Life: Very toxic to aquatic life due to metal ion and nitrate content
Persistence and Degradability: Chromium(III) is not easily biodegradable, tends to persist in soils and sediments
Bioaccumulation Potential: Chromium(III) accumulates in aquatic organisms and soil
Mobility in Soil: Chromium nitrate is soluble in water, mobile in soil and may leach into groundwater
Other Adverse Effects: May disrupt aquatic habitats, encourage eutrophication due to nitrate ions
Waste Treatment Methods: Dispose of in accordance with federal, state, and local environmental control regulations
Waste Disposal: Do not discharge into sewers, natural water sources or soil
Containers: Triple rinse containers before recycling or disposal, puncture and render unusable before landfill
Special Precautions: Consider contacting licensed hazardous waste disposal facility for handling and processing
UN Number: UN 2720
Proper Shipping Name: Chromium Nitrate
Transport Hazard Class: 5.1 (Oxidizer)
Packing Group: III
Environmental Hazards: Marine pollutant
Special Precautions for Transport: Store away from incompatible materials during shipping, keep containers upright, secure to prevent release
OSHA: Regulated hazardous material
EPCRA: Listed under CERCLA, may trigger reporting requirements at certain quantities
SARA 313: Chromium compounds subject to reporting
TSCA Inventory: Listed
REACH Status: Registered in Europe, subject to authorization for certain uses
Other Local Regulation: Subject to regional and national hazard communication standards, may require environmental monitoring
