常用名 | 焦磷酸二氢二钠 | CAS号 | 7758-16-9 |
---|---|---|---|
价格 | ¥需询单/1ton | 纯度 | 99.0% |
备货期 | 需询单 | 库存 | 现货 |
产品网页 | http://www.kolodjs.com/product/jlsya03/ |
产品详情(用途,包装等)
酸式焦磷酸钠 SODIUM ACID PYROPHOSPHATE 一、化学名:焦磷酸二氢二钠,酸式焦磷酸钠 二、分子式:Na2H2P2O7 三、分子量:221.94 四、CAS:7758-16-9 五、性状:白色结晶性粉末,相对密度1.862。易溶于水,水溶液呈碱性。不溶于乙醇。可与Fe2+, Mg2+形成螯合物。 六、用途:在食品工业中作缓冲剂、膨松剂、螯合剂、稳定剂、乳化剂、色泽改进剂。 七、包装:内衬聚乙烯塑料袋,外套复合塑料编织袋,每袋净重25kg。 八、贮存与运输:本品应贮存在干燥通风清洁的库房中,装载运输时要轻装轻放,防止包装破损,防止受潮、受热,运输过程中防止雨淋受潮,应与有毒物品隔离。 质量指标 Specification GB25557-2010 FCC VII 焦磷酸二氢二钠(Na2H2P2O7),w/% Assay(Na2H2P2O7),w/% 93.0-100.5 93.0-100.5 砷( As),mg/kg ≤ Arsenic(As),mg/kg ≤ 3 3 氟化物(以F计),mg/kg ≤ Fluoride(F),mg/kg ≤ 50 50 重金属(以Pb计),mg/kg ≤ Heavy Metals (Pb),mg/kg ≤ 10 ————
水不溶物,w/% ≤ Insoluble Substances , w/% ≤ 1.0 1.0 铅(Pb),mg/kg ≤ Lead(Pb),mg/kg ≤ 2 2 pH(10g/L 溶液) pH Value 4.0±0.5 ———— 1、Chemical Name: Sodium Acid Pyrophosphate 2、Molecular Formula: Na2H2P2O7 3、Molecular Weight: 221.94 4、CAS: 7758-16-9 5、Character: It is white crystalline powder. Relative density is 1.862. It’s soluble in water, insoluble in ethanol. Aqueous solution is alkaline. It reacts with Fe2+ and Mg2+ to form chelates. 6、Usage: In food industry, it is used as buffering agent, swelling agent, chelating agent, stabilizer, emulsifier and color improver. 7、Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg. 8、Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances. 更多
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