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Sodium Nitrite
Sodium Nitrite is an inorganic white to slightly yellowish crystalline powder with the chemical formula NaNO₂. This versatile chemical serves as a powerful reducing agent, corrosion inhibitor, and food preservative, widely used in meat curing, pharmaceutical synthesis, and industrial applications. Its oxidative properties make it valuable for dye manufacturing and rubber processing while requiring careful handling due to its toxicity.
Sodium Nitrite
Primary Uses
- Food Preservation (E250)
- Prevents botulism in cured meats (bacon, hot dogs, sausages)
- Fixes color and enhances flavor in processed meats
- Metal Treatment & Corrosion Control
- Primary component in industrial corrosion inhibitor blends
- Passivation agent for steel and other ferrous metals
- Dye & Pigment Manufacturing
- Diazotization agent in azo dye production
- Intermediate in color-fast textile dyes
- Pharmaceutical Synthesis
- Vasodilator precursor in cardiovascular drugs
- Antidote for cyanide poisoning
- Rubber Industry
- Accelerator in rubber vulcanization processes
- Prevents premature curing of rubber compounds
Secondary Uses
- Analytical Chemistry
- Reagent for testing amino acids and sulfa drugs
- Oxygen scavenger in chemical analysis
- Photography
- Antifogging agent in developer solutions
- Stabilizer in photographic emulsions
- Wastewater Treatment
- Oxygen scavenger in boiler water treatment
- Controls hydrogen sulfide in sewage systems
- Laboratory Applications
- Standard solution for nitrite determination
- Microbial culture media component
- Pesticide Formulations
- Fumigant for agricultural pest control
- Preservative in pesticide concentrates
1. Basic Identification Attributes
- Chemical Name (IUPAC): Sodium nitrite
- Common/Trade Name: Nitrous acid sodium salt
- CAS Number: 7632-00-0
- HS Code: 2834.10.00
- Synonyms: Diazotizing salt, E250
2. Physical & Chemical Properties
- Physical State: Crystalline powder or pellets
- Color & Odor: White to yellowish; slight salty odor
- Solubility: 84.8 g/100 mL water (20°C)
- Density: 2.17 g/cm³
- pH: ~9 (1% solution)
3. Safety & Hazard Attributes
- GHS Classification: Acute Toxicity (Oral, Category 3)
- Toxicity: LD₅₀ 180 mg/kg (oral, rat)
- Exposure Limits: TWA 1 mg/m³ (nitrite)
4. Storage & Handling Attributes
- Storage Conditions: Cool, dry, ventilated, away from acids
- Container Type: 25kg fiber drums with poly liners
- Shelf Life: 2 years in original packaging
- Handling Precautions: Avoid contact with combustible materials
5. Regulatory & Compliance Attributes
- FDA 21 CFR 172.175 (food-grade)
- REACH registered
- UN1500 (Oxidizing Substances)
6. Environmental & Health Impact
- Biodegradability: Not biodegradable
- Ecotoxicity: LC₅₀ 880 mg/L (fish)
- Bioaccumulation: None
Safety Handling Precautions
- PPE Required: Chemical goggles, nitrile gloves, respirator
- Handling Guidelines: Use local exhaust ventilation
- Storage Measures: Separate from acids and flammables
First Aid Measures
- Inhalation: Immediate fresh air, medical attention
- Skin Contact: Remove clothing, wash with soap/water
- Eye Contact: Rinse 15 minutes, seek medical help
- Ingestion: Do NOT induce vomiting, call poison control
Firefighting Measures
- Fire Hazards: Enhances combustion
- Extinguishing Media: Water spray, dry chemical
- Hazardous Combustion Products: Nitrogen oxides
Related products
Calcium Propionate
Calcium Propionate is the calcium salt of propionic acid, appearing as a white, crystalline powder or granules with a slightly salty taste and low odor. It is highly soluble in water and used primarily as a food preservative and mold inhibitor. Calcium Propionate inhibits the growth of mold, bacteria, and fungi, making it especially valuable in baked goods, dairy products, and animal feed to extend shelf life and prevent spoilage. It also finds application in pharmaceuticals and cosmetics as a preservative and antimicrobial agent.
Cellulose Ether
Cellulose ether refers to a group of chemically modified cellulose derivatives where hydroxyl groups on the cellulose backbone are substituted with ether groups such as methyl, hydroxyethyl, or carboxymethyl groups. These modifications improve solubility, viscosity, and film-forming properties while maintaining biodegradability and non-toxicity. Cellulose ethers are white to off-white powders or granules that dissolve in water to form viscous, stable solutions. They are widely used as thickeners, binders, stabilizers, and film formers in industries such as construction, pharmaceuticals, cosmetics, food, and paper.
Kaolin
Kaolin is a naturally occurring, fine white clay mineral primarily composed of kaolinite. It features a soft, powdery texture and excellent absorbency. Kaolin is widely used across ceramics, paper, rubber, paint, and cosmetics industries due to its chemical inertness, whiteness, and plasticity. It acts as a filler, coating agent, and extender to enhance product quality and performance.
Potassium Iodide USP
Potassium Iodide USP is a high-purity inorganic halogenated salt that meets the strict quality and purity standards of the United States Pharmacopeia (USP). It appears as white crystalline granules or powder, is odorless, and has a characteristic saline taste. This pharmaceutical-grade compound is valued for its ability to act as a source of iodide ions, its high solubility in water, and its stability when properly stored. It is slightly hygroscopic and may become yellow upon prolonged exposure to air due to liberation of iodine, with light and moisture accelerating decomposition, requiring careful packaging and storage. Potassium Iodide USP is manufactured under current Good Manufacturing Practices (cGMP) and is suitable for human pharmaceutical applications, nutritional supplements, and other uses requiring the highest purity standards.
Sodium Acetate Trihydrate
Sodium Acetate Trihydrate is a white crystalline solid that is the hydrated form of sodium acetate. It is highly soluble in water and has a mildly alkaline pH in solution. Widely used in chemical, pharmaceutical, food, and textile industries, sodium acetate trihydrate serves as a buffering agent, pH regulator, and preservative. Its ability to stabilize pH and act as a neutralizing agent makes it valuable in various industrial and laboratory applications. Additionally, it is used for heat packs due to its exothermic crystallization properties.
Sodium Sulphite (Blue)
Sodium Sulphite Blue is a white to bluish-white crystalline powder with the chemical formula Na₂SO₃. The “Blue” grade indicates a specific industrial quality often containing minor additives or impurities, used primarily in water treatment and chemical industries. It acts as an effective oxygen scavenger, reducing agent, and preservative. This 25kg packaged product is highly soluble in water, forming alkaline solutions, and is widely used in pulp and paper, water treatment, textile, and photographic industries.
Veegum
Veegum is a purified magnesium aluminum silicate clay known for its excellent suspending, thickening, and stabilizing properties. It is widely used in pharmaceuticals, cosmetics, and industrial applications as a rheology modifier, suspension stabilizer, and emulsifier. Veegum enhances the texture, consistency, and stability of formulations, providing improved performance in both liquid and semi-solid systems.
Vitamin B3 (Niacin)
Vitamin B3 Niacin, also known as Niacin or Nicotinic Acid, is a water-soluble vitamin essential for energy metabolism and enzymatic reactions in the body. It plays a key role in the synthesis of coenzymes NAD and NADP, which are critical for cellular respiration and DNA repair. Niacin is widely used in pharmaceuticals, nutraceuticals, food fortification, and animal nutrition to prevent niacin deficiency and support overall health.
