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Industrial production of sodium nitrite follows one of two processes, the reduction of nitrate salts, or the oxidation of lower nitrogen oxides. One method uses molten sodium nitrate as the salt, and lead which is oxidized, while a more modern method uses scrap iron filings to reduce the nitrate. [4] [84] NaNO 3 + Pb → NaNO 2 + PbO
The nitrite ion has the chemical formula NO − 2. Nitrite (mostly sodium nitrite) is widely used throughout chemical and pharmaceutical industries. [1] The nitrite anion is a pervasive intermediate in the nitrogen cycle in nature. The name nitrite also refers to organic compounds having the –ONO group, which are esters of nitrous acid.
Note that the maximum allowable amount of sodium nitrite and potassium nitrite is governed by regulations and is limited to 7 grams per 45 kg (0.25 ounces per 100 pounds) of chopped meat. [5] Since Prague powder #1 is a 1:15 dilution (in 0.45 kg of Prague powder #1 30 grams is sodium nitrite and 425 grams are common table salt), we get the ...
Nitrates and nitrites extend shelf life, [citation needed] help kill bacteria, produce a characteristic flavor and give meat a pink or red color. [17] Nitrite (NO − 2) is generally supplied by sodium nitrite or (indirectly) by potassium nitrate. Nitrite salts are most often used to accelerate curing and impart a pink colour. [18]
Sodium nitrate is the chemical compound with the formula Na N O 3.This alkali metal nitrate salt is also known as Chile saltpeter (large deposits of which were historically mined in Chile) [4] [5] to distinguish it from ordinary saltpeter, potassium nitrate.
Also called Pink curing salt #2. It contains 6.25% sodium nitrite, 4% sodium nitrate, and 89.75% table salt. [4] The sodium nitrate found in Prague powder #2 gradually breaks down over time into sodium nitrite, and by the time a dry cured sausage is ready to be eaten, no sodium nitrate should be left. [3]
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Spam's main ingredients are pork shoulder and ham, [3] with salt, water, modified potato starch (as a binder), sugar, and sodium nitrite (as a preservative). Natural gelatin is formed during cooking in its cans on the production line. [4] It is available in different flavors, some using different meats, as well as in "lite" and lower-sodium ...