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China, Chinese CAS 50-81-7 Vc Vitamin C Ascorbic Acid1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Essential Oil Balsam Fine ChemicalsAscorbic AcidVitamin C
NINGBO HI-TECH ZONE YEFENG NEW MATERIALS TECHNOLOGY CO.,LTD.
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Product Description Company ProfileNINGBO HI-TECH ZONE YEFENG NEW MATERIALS TECHNOLOGY CO.,LTD. was established in 2012 and located in Ningbo city Zhejiang province, We focus on cosmetic rawmateirls, pharmaceutical raw mateirls and food additive chemicals export more than 20 years. We also can provide some products formula in these field. And also can service for client do some special chemical test in china mian lab, Like ingredint Analysis, UV test. We trust you will satisfy our quality and enjoly our service. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.Product Description Ascorbic acid CAS 50-81-7 It is a water-soluble vitamin that is abundant in fruits and vegetables.Packaging & Shipping25kg/cartonCOAItemStandardAppearanceWhite or almost white, crystalline powder or colourless crystals.IdentificationPositive reaction.Specific optical rotation+20.5°~+21.5°pH(with 5% water solution)2.1~2.6pH(with 2% water solution)2.4~2.8Impurity E≤0.20%Clarity of solutionClearColour of solution≤BY7Assay(C6H8O6)99.0%~100.5%Melting point190~192oCImpurities C, D≤0.15%Unspecified impurities (each impurity)≤0.10%Sum of impurities other than C and D≤0.20%Particle size distribution≥95.0% through #20 meshParticle size distribution≤30.0%through #100 meshResidue on ignition≤0.1%Loss of Drying≤0.4%Heavy metal≤10.0 mg/kgIron≤2.0 mg/kgCopper≤5.0 mg/kgLead≤0.5 mg/kgAs≤1.0 mg/kgCd≤0.5 mg/kgHg≤0.1 mg/kgResidual Solvents(as methanol-)≤3000 mg/kgTotal Plate Counts≤1000 cfu/gYeasts and Moulds≤100 cfu/gEscherichia coliNegative in 10gSalmonellaNegative in 25gStaphylococcus AureusNegative in 25g
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