Sodium nitrate (food grade), also known as Chilean saltpeter and saltpeter, is an inorganic nitrate with the chemical formula NANO₃ and a relative molecular weight of 84.99.Food grade sodium nitrate is odorless and has a slightly salty taste. The substance is a white crystalline powder or colorless transparent crystal. Common forms include powdered, granular, and crystallized. It has no odor, is not easy to clump, and has excellent solubility.It is soluble in water, slightly soluble in ethanol and glycerin, insoluble in ether and acetone, and the aqueous solution is neutral with a pH value of about 6.5-7.5. It has good anticorrosive properties, coloring properties and hair color aids. It can inhibit microbial reproduction and promote the hair color of meat products.It is stable in the air and is not easy to deliquescence. It melts when heated to 308℃. If it continues to be heated above 380℃, it will decompose and produce oxygen. It needs to be sealed and stored in a cool and dry place, away from high temperature, open flame and reducing substances to prevent decomposition and deterioration.In food processing, it is mainly used for anticorrosive and coloring of meat products. At the same time, it can be used in food additives, pharmaceutical excipients, chemical raw materials and other fields. It is used as a preservative, hair color agent, and dye aid. It is also used in meat processing, pharmaceutical synthesis, glass manufacturing and other processes.Its excellent anticorrosive properties and hair color properties can effectively extend the shelf life and improve the color of products in the processing of meat products. It is highly targeted for use and strictly complies with food-grade safety standards. It is one of the indispensable additives in the food processing industry. It fits the current development trend of the sodium nitrate industry with the development of the food processing industry and the growth of demand.

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Application Description

1. It is used as a preservative, hair color agent, and hair color aid in the field of food processing. It is mainly used in the processing of meat products such as bacon, sausages, ham, and luncheon meat. It can inhibit the reproduction of harmful microorganisms such as botulinum toxin and extend the shelf life of meat products. At the same time, it promotes the conversion of myoglobin into nitrosyl myoglobin, which makes meat products appear bright rose red, improves product color and flavor, strictly follows the standards for the use of food additives, and adapts to the needs of large-scale production of various meat products.
2. The pharmaceutical industry is used as pharmaceutical excipients and chemical reagents for the production of antibiotics, antipyretic analgesics and other pharmaceutical products. It can be used as an intermediate in drug synthesis to assist in the smooth progress of drug synthesis. At the same time, it can be used for the seasoning and anticorrosion of pharmaceutical preparations to meet the high standards of the pharmaceutical industry and meet the development trend of the pharmaceutical and chemical industry.
3. In the chemical industry, it is used as a chemical raw material and oxidant for the production of potassium nitrate, sodium nitrite, soda ash and other chemical products. At the same time, it can participate in the redox reaction, as an oxidant and combustion aid for organic synthesis, and adapt to the upgrading needs of the fine chemical industry. At the same time, it can be used as an auxiliary raw material for conductive materials for solar panels in the field of new energy.
4. It is used as a flux and clarifying agent in the field of glass manufacturing. It is used in the production of flat glass, vessel glass and other products. It can reduce the melting temperature of the glass, promote the clarification of the glass melt, remove bubbles and impurities in the glass, and improve the transparency and gloss of the glass. It is one of the commonly used auxiliary raw materials in the glass manufacturing industry.
5. It is used as a printing and dyeing aid and dyeing aid in the textile industry. It is used in the dyeing and finishing processes of cotton, linen, chemical fiber and other textiles. It can adjust the pH of the dye solution, promote uniform coloring of dyes, and improve dyeing fastness. At the same time, it can be used as a bleaching aid to improve the bleaching effect of textiles and adapt to the large-scale production needs of the textile industry.
6. It is used as a fertilizer additive in the agricultural field for the production of compound fertilizers, which can supplement the nitrogen in the soil, promote crop growth, and improve crop yield and quality. It is especially suitable for vegetables, fruits and other crops, which meet the needs of agricultural modernization.
7. It is used as a preservative and colorant in the light industry, and is used in the production of papermaking, leather, daily chemicals and other products. It is used as a paper preservative in the paper industry to prevent mildew and decay of the paper and extend the storage time of the paper. It is used as a leather preservative and colorant in the leather industry to improve the quality and color of leather. At the same time, it can be used in cosmetics, detergents and other products to improve the anticorrosive properties of products.
8. It is used as a chemical reagent in the laboratory, as an oxidizing agent, a reference reagent, and a hair color agent. It is used in experimental operations such as chemical analysis, organic synthesis, and microbial culture. It can also be used to prepare buffers, calibrate experimental instruments, and assist in the smooth progress of various experiments. It is one of the commonly used reagents in the laboratory.