Preservative sodium metabisulfite, Ruihai chemicals (certified), Cangzhou metabisulfite

 Chemicals used in the production of sodium hydrosulfite, sulfamethazine metamizol sodium metabisulfite synthesis of caprolactam, etc., and chloroform, sodium metabisulfite preservative, styrene sulfone and benzaldehyde purification. Photographic industry as ingredients fixer. Fragrance industry for the production of vanillin. Used as a preservative brewing industry, rubber coagulant and cotton bleaching after dechlorination agent. Organic intermediates metabisulfite manufacturers, dyes, leather is used as a reducing agent electroplating industry, waste water treatment and as a mine field of processing agents. Sodium metabisulfite nature, purpose and content analysis of the production process to take 0.1mol L iodine 50ml, put the bottle of iodine. Take a sample of about 0.2g (weighing accuracy of 0.0002g), adding iodine, the stopper is placed 5min. Plus 2mol L 5ml hydrochloric acid, with 0.1mol L standard solution of sodium thiosulfate titration. Near the end, add starch indicator 2ml 0.5% sodium metabisulfite, continue titration to the disappearance of the blue end. Another O.1mol L iodine solution 50ml, blank test in the same conditions. Toxic ADI 0 ~ 0.7mg / kg (SO2 meter; including SO2 and sulfites total ADI value; FAO / WH0,1999). GRAS (FDA, §182.3766,2000). 1. Bags (barrel) should be painted on the firm's logo, including: product name, grade, weight and production plant name; 2. Sodium metabisulfite plastic bags or drums lined with plastic bag, net weight 25 or 50kg; 3. This product transportation, storage should prevent damage, moisture, heat deterioration. Is strictly prohibited and oxidants, acids coexist; 4. From the date of manufacture of the product, the storage period of six months. Packing: 25 kg net weight 1100 kg with plastic bags or significant net bags. Preservative sodium metabisulfite, Ruihai chemicals (certified), sodium metabisulfite Cangzhou Ruihai by Weifang Chemical Co. Weifang Ruihai Chemical Co. (www.liyunchem.com) Shandong Weifang, a leader in the chemical processing, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Ruihai Chemical leadership with the staff warmly welcome all inquiries negotiations to create a better future Ruihai chemicals.