L（＋）－酒石酸
性状：无色半透明晶体或白色细至粗结晶粉末，有酸味。Properties:Colorless or translucent crystals, or a white, fine granular, crystalline powder. It is odorless, has an acid taste, and is stable in air.化学名称：L(+)－2,3－二羟基丁二酸Chemical Name :L(+)-Tartaric acid分子式：C4H6O6Molecular Formular:C4H6O6分子量：150.09Molecular Weight: 150.09主要功能和用途：*用作饮料和其他食品的酸味剂，用于软饮料、糖果、面包、某些胶状甜食。利用其光学活性，作为化学拆分剂，用于制造抗结核病药物中间体DL－氨基丁醇的拆分；还可以作为手性原料用于酒石酸衍生物的合成；利用其酸性，作为涤纶织物树脂整理的催化剂，谷维素生产的PH调节剂；利用其络合性，用作电镀、脱硫、洗酸以及化学分析、医药检验中的络合剂、掩蔽剂、螯合剂、印染的防染剂；利用其还原性，用作化学制镜的还原剂。照相的显影剂。还能与多种金属离子络合，可作金属表面的清洗剂和抛光剂。Application: mainly used in chemical preparation of sour, chemical preparation of resolution and pharmaceutical materials. It can be used in high-level candy, cold drink and wine in food industry, also used in preservative and stabilizer. In textile industry it can be used in resist agent of printing and dying.贮存：避光、干燥、阴凉处密闭贮存。STORAGE：Kept airtightly in a light-proof, dry and cool place.质量指标：FCCⅥSPECIFICATION：FCCⅥ检验项目标 准Test ItemLimit性状无色或白色晶体DescriptionColorless and rhombic crystals含量%≥99.7Content 比旋光度[a]D25+12.0°~+13.0°Specific rotatory power[a]D25 干燥减重%≤0.5Loss on drying 灼烧残渣%≤0.05Residue ignition 硫酸盐%合格Sulfate(SO4)qualified草酸盐%合格Oxalatequalified砷mg/kg≤3Arsenic(As) 重金属mg/kg≤10Heavy metal 铅mg/kg≤2Lead
