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Sodium Nitrite

Sodium nitrite is a highly-soluble inorganic sodium salt with the formula NaNO2. It is often used as a precursor to compounds used in pesticides, dyes and pharmaceuticals, but is most commonly known as a food additive and preservative.


Sodium nitrite is recognised as a solid powder that is white in colour, also available as a light-yellow liquid.

While similar in name, it is important to note that this product differs from sodium nitrate — nitrates are made up of one nitrogen atom and three oxygen atoms. Nitrites, like this, consist of one nitrogen atom and two oxygen atoms.

CAS Number
25kg bag (solid), 25L, 200L, 1000L and bulk transfer (liquid)
Chemical Formula
25%, 30% and 40% (liquid)


Oil & Gas

• An effective corrosion inhibitor and is used as an additive in industrial greases.

Textile Chemicals & Dyes

• In the textile industry as a bleaching agent.

Industrial Ingredients

• It may also be used as an electrolyte in electrochemical grinding manufacturing processes.
• In the rubber industry as a polymer inhibitor and as a foam rubber blowing agent

Food Additives

• Food additive giving taste and colour to the meat and inhibit lipid oxidation that leads to rancidity.
• Inhibition of microbial growth and well known for its role in inhibiting the growth of clostridium botulinum spores in refrigerated meats.

Healthcare Chemicals

• Medicine – used as part of an intravenous mixture to treat cyanide poisoning.

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