Antimicrobial Agents / Antimicrobial Food Additives EINECS NO 203-768-7

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preparation 1. The method of vinyl ketone method is the most widely used method in international industrial production. The acetic acid is formed by pyrolysis of the vinyl ketone, which is then condensed into polyester and then hydrolyzed and refined. Raw material consumption quota: vinyl ketone 510kg/t, bentil aldehyde 1100kg/t. 2, Malonic acid is obtained by condensation of malonate and paracaldehyde and decarboxylation. - - - - Parameters | Specification | Results | Appearance | Colorless crystals or white | Complies | Assay | 99.0-101.0% | 99.77% | Water | 0.5% | 0.32% | Melting range | 132 - 135 | 1336 .- 134 . 5 | Residue on ignition | 0. 2% | 0.04% | Aldehyde (as Formaldehyde) | 0,1% | < 0.1% | Lead (Pb) | 2 mg/kg | < 2 mg/kg | Heavy Metals (as Pb) | 10 mg/kg | < 10 mg/kg | Arsenic(as As) | 2 mg/kg | < 2 mg/kg | Mercury (Hg) | 1 mg/kg | < 1 mg/kg | Organic volatile impurities | Meets the requirements | Meets the requirements | Residual solvents | Meets the requirements | Meets the requirements | - - - -

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XIAMEN ASAU IMPORT AND EXPORT CO LTD

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