Sodium Nitrite

Synonym(s)

: nitrous acid; sodium salt, natrium nitrite

Mol. Formula

: NNaO2

EC / List no.

: 231-555-9

CAS no.

: 7632-00-0

Molecular weight

: 68,995

Sodium nitrite is an inorganic sodium salt with nitrite as the counter ion. It is used as a food preservative and antidote against cyanide poisoning. It has the role of antimicrobial food preservative, antihypertensive agent, food antioxidant, poison and antidote against cyanide poisoning. It is a nitrite salt and an inorganic sodium salt.

Application

» This substance is used in the following products: antifreeze products, adhesives and sealants, coating products, fillers, putties, plasters, modeling clay, finger paints, metal surface treatment products, non-metal surface treatment products, inks, toners and lubricants and greases.
» Used in machine wash fluids/detergents, automotive care products, paints, coatings or adhesives, fragrances and air fresheners, coolants in refrigerators, oil-based electric heaters, hydraulic fluids in automotive suspension, lubricants in engine oil and brake fluids.

Product Specifications

Physical and Chemical Properties
» Sodium nitrite appears as a yellowish white crystalline solid.
» It has a slightly salty taste.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	271
Density	g/ cm³	2.17- 2.26	20 °C
Solubility	g/L	848	25 °C, soluble with water
LogP		-3.7