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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.

Overview

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
7632-00-0
Quantities
25kg bag (solid), 25L, 200L, 1000L and bulk transfer (liquid)
Chemical Formula
NaNO2
Strengths
25%, 30% and 40% (liquid)

Applications

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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