Formula: C6H7NaO6N.W.: 198.12Item specification test resultsDescription white or slightly yellow crystals or powder conformIdentification passes Test A,B,C conformAssay 99.0-100.5% 99.97%Heavy metals 10mg/kg max 7.1Lead 5mg/kg max 1.0Residue on ignition 0.3% max 0.09%Loss on drying 0.4% max 0.15%PH 2.2-2.4 2.3

Use: mainly used in foodstuff industry, used as the antioxidant of the food, broadly used in meat food, fish food, beer, fruit juice, syrup crystal, fruit and vegetable tin, cake, dairy produce, confiture, sherry, pickles, and grease etc. the dosage in the meat foods is 0.5~0.8g/kg. To the frozen fish, the fish should be infused in the 0.1%-0.6% water solution before freezing. The dosage in the beverage such as syrup is 0.01%~0.025%, apple bechamel tin: 0.15g/kg (dosage of single or together with the VC), to the luncheon meat, cooked meat powder, cooked front leg pork, cooked ham, the dosage is 0.5g/kg (dosage of single or together with the VC and other sodium salt, counted the VC), for the peach, apple jam: 2g/kg,for the fruit tin, it is 0.75-1.5g/l,for the nature syrup, it is 0.08-0.11g/l. for the beer, it is 0.03g/l.. Used in oil field as antioxidant.