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Food grade Sodium nitrite CAS 7632-00-0
Sodium nitrite is an inorganic compound with the chemical formula NaNO2. It is a white or yellow patch on a rhombic crystal or powder. Slightly salty, with deliquescence. Easy to dissolve in water and liquid ammonia, its aqueous solution is alkaline.
Its concentration is also very low in most vegetables. Spinach and lettuce may have the highest concentration, but all vegetables will contain a certain level of sodium nitrite. It has been explored as a vasodilator and blood pressure lowering agent in human and veterinary medicine, as well as an antidote to cyanide poisoning.