Sodium nitrate
CAS 7631-99-4
Salts & Minerals Agriculture & FeedFood & NutritionPulp & PaperMining & Metals Preservation & BiocideAntioxidant & Stabilizer
Description
Sodium nitrate (CAS 7631-99-4), also known as E 251, Chile saltpeter, soda niter, and Chile niter, is an inorganic salt occurring naturally in mineral deposits and produced synthetically at industrial scale. It serves as a source of nitrate ions across multiple industrial sectors.
In food processing, sodium nitrate functions as a curing agent and preservative in cured meats, inhibiting Clostridium botulinum growth by interfering with bacterial enzyme activity. In agriculture, it delivers readily available nitrogen directly to crops without requiring soil conversion. In mining and metals processing, it acts as an oxidising agent in blasting formulations and metal treatment baths.
Sodium nitrate is available in food-grade (E 251), technical, and fertiliser grades, supplied as granules or crystalline powder. It is regulated under EU food additive legislation and falls within REACH requirements. Standard packaging includes 25 kg bags and bulk options for industrial volumes.
In food processing, sodium nitrate functions as a curing agent and preservative in cured meats, inhibiting Clostridium botulinum growth by interfering with bacterial enzyme activity. In agriculture, it delivers readily available nitrogen directly to crops without requiring soil conversion. In mining and metals processing, it acts as an oxidising agent in blasting formulations and metal treatment baths.
Sodium nitrate is available in food-grade (E 251), technical, and fertiliser grades, supplied as granules or crystalline powder. It is regulated under EU food additive legislation and falls within REACH requirements. Standard packaging includes 25 kg bags and bulk options for industrial volumes.
Other Names
E 251Soda niterChile niterChile saltpeterSaltpeter (Chile)Sodium nitrate (1:1)Nitric acid sodium saltNitric acid, sodium salt
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