Application:

1 Used as hair color agent in meat processing.

2 It is used as an ordinary analytical reagent, oxidant and diazotization reagent, and is also used for the synthesis of nitrite and nitroso compounds. It is used as a mordant, bleach, metal thermal treatment agent, corrosion inhibitor for electroplating, and as an instrument disinfectant and preservative in medicine.

3 Used as mordant, bleach agent, metal heat treatment agent, corrosion inhibitor for electroplating, medical equipment disinfection, preservative.

4 It is used in the production of ice dye, sulphur dye, direct dye, acid dye, disperse dye, alkaline dye, dye aid and H hair hole agent. It is also used to produce intermediates such as amino-azobenzene and para-aminophenol. It is also used in the production of organic pigments, such as silver bead R, bright red, big red powder, candle red, toluidine purple red, scarlet lake, Risor red, purple paste lake CK and so on. The pharmaceutical industry is used to manufacture pyrimethamine, aminopyrine and so on. For the production of vanillin. Used as a bleach for silk and linen. Mordant for fabric dyeing. It is also used as corrosion inhibitor for metal heat treatment and electroplating. Used in cutting oil, lubricating oil, antifreeze, hydraulic system.

5 Sodium nitrite is a hair color agent permitted in our country. It is free of nitrite under the action of lactic acid contained in meat, and then breaks down nitroso (N0), which can form bright red nitroso myoglobin with myoglobin, which plays a role in color protection, and can produce special flavor. Sodium nitrite can also inhibit a variety of anaerobic clostridium, especially clostridium botulinum has a special inhibitory effect. China stipulates that it can be used for pickled livestock, poultry meat cans and meat products, with a maximum usage of 0.15g/kg; The residual amount (measured by nitrite sodium) of meat products shall not exceed 0.03g/kg, salted ham, the residual amount is 0.07g/kg, can also be used for canned meat, shall not exceed 0.05g/kg.

6 Used as hair color agent in meat product processing, can be used in meat cans, meat products. In meat products, it has a certain effect on inhibiting the proliferation of microorganisms (clostridium botulinum has a special inhibitory effect) and can improve the flavor of cured meat. It can be used as a preservative.

Meat hair color agent; Antimicrobial agents; Preservative. In Japan, it can be used for canned meat, ham, sausage, bacon, corned beef and other meat products. Ascorbic acid, isoascorbic acid, cysteine and nicotinamide can be used as hair color AIDS. Reference dosage