Folic acid

Folic acid Molecular formula: C19H19N7O6 Molecular weight: 441.41 DESCRIPTION: Yellow to orange crystals and crystal powder. Odourless. Hot plate with recrystallizate obtained crystals. No definite melting. At about 250 degrees Celsius in the air, stable, carbonized decomposed into 2-4 - amino hydroxyl butterfly cefotaximes - 6-6 - carboxyl aldehydes or physiological activity, lost. If there is caused more trace lactoflavin light decomposition. Slightly soluble in water (160 mg/100ml), insoluble in acetone, ethanol, ethyl ether, chloroform, and soluble in alkaline solution and hydrogen peroxide and carbonate, sulfuric acid, hydrochloric acid, phenol, pyridine glacial acetic acid. Ten percent water suspension PH value about 4.0 4.8 Folic acid in anaerobic condition is stable in alkali, but in aerobic circumstance, alkali, hydrolysis. In food processing, encounter sulphite or nitrite makes folic acid decomposition. Bottles of milk disinfection (119 , 14 s) will lead to loss of folic acid 39%, but as with 143 , 3 seconds disinfection is only 7 percent loss, folic acid in ascorbic acid, citric acid, or there will be protected. Natural product exists in the green vegetables, liver, yeast, beef, soybeans, etc QUALITY STANDARD: FCC, 1996 Content(based on anhydride) 95.0% 102.0% Ignition residue ≤0.3% Moisture ≤8.5% GB15570-95 Content(based on anhydride) 96.0% 102.0% Ignition residue ≤1.0% Moisture ≤8.5% Heavy metal(based on Pb) ≤0.01% As ≤0.0003% APPLICATION: Nutrition supplements. Used to milk powder, adding 0.3 mg/100g