Production Of Sorbic Acid 6x3o1o

More information: http://www.guidechem.com/cas-110/110-44-1.html

Production of Sorbic acid Name:Sorbic acid EINECS:203-768-7 Molecular Formula:C6H8O2 CAS Registry Number:110-44-1 Appearance:White crystalline powder Molecular Weight:112.13 Density:1.205 Boiling Point:228°C Melting Point:132-135°C Flash Point:127°C Storage Temperature:2-8°C Solubility:1.6 g/L (20 oC) in water Stability:Stability Material saturated with this acid may ignite spontaneously. Incompatible with strong oxidizing agents. May be light sensitive. Usage:Mold and yeast inhibitor, fungistatic agent for foods, especially cheeses. To improve characteristics of drying oils. In alkylated type coatings to improve gloss. To improve milling characteristics of cold rubber. Sorbic acid is currently the most widely used acid type food preservatives , under acidic conditions (PH5-6 less ) to mold , yeast and aerobic bacteria are inhibited, but anaerobic spore -forming bacteria and acidophilus Lactobacillus almost ineffective . Plastic barrels in the food industry juice concentrate , the amount shall not exceed 2g/kg; in soy sauce, vinegar, jams , hydrogenated vegetable oil , candy , rain dried products , instant soy products , pastries depression, bread, cakes, moon cake and instant jellyfish maximum use of lactic acid bacteria beverage

More information: http://www.guidechem.com/cas-110/110-44-1.html

1.0g/kg; wine and wine in maximum usage 0.6g/kg; protein casings in the more salt , low-salt pickles, sauces , preserves, fruit juice ( flavored ) drinks and jelly the maximum use of 0.5g/kg; in fresh fruits and vegetables and carbonated beverages maximum usage 0.2g/kg; in the food industry for meat, fish, eggs, poultry products , the maximum usage 0.075g/kg. Furthermore , in the cosmetics , pharmaceutical and feed also applied. Yamanashi sorbic aldehyde by oxidation, condensation of acetone with crotonaldehyde crotonaldehyde and malonic acid condensation with the legal system , but the current domestic production of ketene are used . In addition, the butadiene route due to lower raw material costs and has good development prospects. ( 1 ) butadiene route. Butadiene and acetic acid in the catalyst manganese acetate , 140°C added compressed aggregate obtained γ- vinyl -γ- butyrolactone at 100°C, under acidic conditions, γvinyl -γ- butyrolactone obtained sorbic acid hydrolysis . ( 2 ) Method ketene . Catalysts containing phosphoric acid alkyl ester above 700 °C steam cracking tube stays within 0.3s, the resulting mixture was treated with ammonia gas into ammonium and sauce catalyst deactivation. Gradual cooling to -30 - 10 °C to remove water , acetic acid and acetic anhydride . Crotonaldehyde ketene gas is absorbed , and boron trifluoride ( or zinc chloride , cobalt chloride , etc. ) to form the poly hexene catalyzed -4,5-β- lactone (referred to as polyester) , polyester in acidic conditions hydrolysis of the crude sorbic acid precipitated after cooling , and then 3-4 times the amount of 60% ethanol recrystallization, sorbic acid .