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      Application areas of potassium nitrate

      May 16, 2021

      1. Used as analytical reagent and oxidant, and also used in the synthesis of potassium salt and the preparation of explosives.

      2. In the food industry, it can be used as a hair coloring agent, color protectant, antimicrobial agent, and preservative. For example, it can be used as a preservative in luncheon meat.

      3. It is the raw material for making black gunpowder, such as mine gunpowder, fuse, firecracker, etc. It is also used in fireworks to produce purple sparks. Mechanical heat treatment is used as a salt bath for quenching. The ceramic industry is used to make enamel paint. Used as a glass clarifier. Used in the manufacture of glass bulbs for automobile lamps, glass bulbs for optical glass kinescopes, etc. In the pharmaceutical industry, it is used to produce penicillin potassium salt and rifampin. Used to make cigarette paper. Used as a catalyst. Ore dressing agent. Used as compound fertilizer for crops and flowers.

      4. Potassium nitrate is also a hair color agent allowed in China. It is reduced to potassium nitrite due to the effect of bacteria in meat products, which plays a role of color protection and bacteriostasis. China stipulates that it can be used for meat products, the maximum use amount is 0.5g/kg, and the residual amount shall not exceed 0.03g/kg.

      5. Used to make fireworks, matches, ceramic glazes, fertilizers, etc.

      6. Industrial potassium nitrate is also widely used in the manufacturing process of strengthened glass.


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