© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Product Name: Calcium Nitrite
Chemical Formula: Ca(NO2)2
Synonyms: Nitrocalcite, Nitrous acid calcium salt
CAS Number: 13780-06-8
Recommended Use: Corrosion inhibitor, concrete admixture
Supplier/Manufacturer: Contact supplier for full details
Emergency Phone: Local emergency number or poison control
GHS Classification: Oxidizing solid (Category 3), Acute toxicity oral (Category 4), Acute toxicity inhalation (Category 4), Eye irritation (Category 2A)
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes serious eye irritation, may intensify fire, oxidizer
Pictograms: Health hazard, exclamation mark, oxidizer
Precautionary Statements: Keep away from combustible material, avoid breathing dust, wash thoroughly after handling, wear protective gear
Potential Health Effects: Irritates eyes and skin, ingestion causes nausea, headache, possible methemoglobinemia
Environmental Hazards: Harmful to aquatic life
Substance: Calcium Nitrite
Concentration: 80-90%
Impurities: Calcium nitrate, sodium nitrite, moisture
Molecular Weight: 132.09 g/mol
EINECS: 237-424-2
Inhalation: Move to fresh air. Provide oxygen if breathing is difficult. Seek medical attention if symptoms persist.
Ingestion: Rinse mouth with water. Do not induce vomiting. Get immediate medical assistance.
Skin Contact: Remove contaminated clothing. Wash off with running water and soap for at least 15 minutes. Obtain medical help for persistent irritation.
Eye Contact: Rinse opened eyes under gentle running water for at least 15 minutes. Remove contact lenses if present. Contact a physician immediately.
Symptoms of Exposure: Blue skin coloration, dizziness, rapid breathing, abdominal pain, nausea.
Special Notes: Methemoglobinemia may develop, so physicians should be alerted.
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Media: Do not use dry chemical containing ammonium compounds; may produce toxic gases
Special Hazards: Decomposes emitting toxic nitrogen oxides and calcium oxides.
Protective Equipment: Full firefighting turnout gear, self-contained breathing apparatus (SCBA).
Firefighting Instructions: Approach from upwind, remove containers from fire if safe. Cool exposed containers with water spray.
Explosion Hazards: Supports combustion, oxidizer, enhances burning of other materials.
Personal Precautions: Use personal protective equipment. Avoid contact with skin, eyes, and clothing. Ventilate the area.
Environmental Precautions: Prevent large spills from entering waterways. Notify authorities if product enters drains or environment.
Spill Cleanup: Sweep spilled material into containers for recovery or disposal. Use non-combustible tools.
Disposal: Dispose of according to local, regional, and national regulations.
Decontamination: Wash spill area with water after removal of bulk material.
Safe Handling: Wear protective clothing, gloves, eye protection. Avoid dust generation and inhalation. Do not eat, drink, or smoke when using.
Safe Storage: Store in cool, dry, well-ventilated areas away from heat and incompatible substances such as acids and combustible materials.
Incompatibilities: Reducing agents, strong acids, organic materials, amines, combustible substances.
Packaging Materials: Use corrosion-resistant and tightly sealed containers.
Storage Temperatures: Store above 0°C and below 40°C, protected from direct sunlight and humidity.
Exposure Limits: No established OSHA PEL or ACGIH TLV for calcium nitrite. Maintain airborne concentrations as low as practical.
Engineering Controls: Use local exhaust or general ventilation to maintain exposures below recommended limits.
Personal Protective Equipment: Chemical resistant gloves (nitrile, PVC), safety goggles or face shield, protective clothing, dust mask or respiratory filter (NIOSH-approved N95 or P100 for airborne particles), eye-wash stations and safety showers nearby.
Environmental Controls: Avoid release into drains, sewers, and the environment.
Appearance: White to yellowish crystalline solid
Odor: Odorless
Odor Threshold: Not applicable
pH: 6.0–8.0 (5% solution)
Melting Point: Decomposes above 390°C
Boiling Point: Not applicable (decomposes on heating)
Flash Point: Not flammable
Evaporation Rate: Not applicable
Flammability: Not classified as flammable, but supports combustion
Vapor Pressure: Negligible
Vapor Density: Not applicable
Solubility: Soluble in water
Partition Coefficient (n-octanol/water): Not determined
Auto-Ignition Temperature: Not self-igniting
Decomposition Temperature: Above 390°C
Viscosity: Not applicable
Bulk Density: 1,100–1,300 kg/m³
Chemical Stability: Stable under recommended storage conditions.
Reactivity: Reacts with acids and reducing agents. Can oxidize organic materials.
Hazardous Reactions: Violent reaction with strong reducing agents, combustibles, acids.
Decomposition: Yields toxic nitrogen oxides and calcium oxides on strong heating.
Incompatible Materials: Ammonium salts, urea, organic chemicals, strong reducing substances.
Polymerization: Not expected.
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: Oral LD50 (rat): 1040 mg/kg
Skin/Eye Irritation: Causes irritation to eyes, possible mild irritation on skin
Inhalation: Dust may cause irritation of the respiratory tract
Ingestion: May cause nausea, vomiting, diarrhea, methemoglobinemia (reduced oxygen carrying capacity of blood)
Chronic Effects: Prolonged exposure can affect blood and may aggravate pre-existing anemia or respiratory conditions
Sensitization: None known
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, or OSHA
Reproductive Effects: No known serious reproductive toxicity
Ecotoxicity: Toxic to aquatic organisms. May cause long-term adverse effects in the aquatic environment.
Persistence and Degradability: Nitrite ions persist in the environment, oxidize to nitrate.
Bioaccumulation Potential: Low, does not bioaccumulate.
Mobility in Soil: High; migrates readily with water.
Other Adverse Effects: Eutrophication by nitrogen pollution.
Aquatic Toxicity: EC50 (Daphnia magna, 48h): 200 mg/L; LC50 (Fish, 96h): 100–200 mg/L
Waste Disposal: Place material residues, contaminated packaging, and cleanup materials in approved containers. Send to licensed hazardous waste facility.
Regulations: Follow local, national, and regional regulations. Do not dispose into surface water or sewage system.
Contaminated Packaging: Treat packaging as hazardous waste unless thoroughly cleaned.
Special Instructions: Avoid releases and dispose in accordance with environmental protection rules.
UN Number: 1454
UN Proper Shipping Name: Calcium Nitrite
Transport Hazard Class: 5.1 (Oxidizing Substances)
Packing Group: III
Marine Pollutant: No
Special Precautions: Keep separate from foodstuffs, feed, and acids during transport.
Labels Required: Oxidizer
RID/ADR: 5.1 1454
IMDG: 5.1
IATA: 5.1
Inventory Listing: Listed in TSCA (USA), EINECS/ELINCS (Europe), DSL (Canada), ENCS (Japan)
Labeling (GHS): Oxidizer, Harmful, Environmental Hazard
SARA Title III Section 313: Not regulated
OSHA Regulations: Not classified as hazardous by OSHA, but regulated due to oxidizing properties
California Proposition 65: Not listed.
Other Requirements: Observe all applicable international, national, and local regulations for handling and safety.
