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多聚磷酸钾

一、化学名：多聚磷酸钾，偏磷酸钾

二、分子式：KPO3

三、分子量：118.07

四、CAS：7790-53-6

五、性状：无色或白色玻璃状物，呈碎片状结晶或为白色粉末。无臭。吸湿性强。随着聚合度的增大，逐渐成为透明的玻璃状，吸湿性也随之增大。具有提高淀粉分散性的能力，与水溶液中的金属离子有螯合作用。

六、用途：在食品工业中作乳化剂、保湿剂、螯合剂、稳定剂、组织改进剂、粘结剂、护色剂、抗氧剂、防腐剂。可以用于肉类制品、干酪和淡炼乳。

七、包装：内衬聚乙烯塑料袋，外套复合塑料编织袋包装，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 FCC VIIE452(ii)
含量（以P2O5计），w/%Content(as P2O5),w/%59.0-61.053.5-61.5
砷（As），mg/kg                 ≤Arsenic(As),mg/kg            ≤33
氟化物（以F计），mg/kg          ≤Fluoride(as F),mg/kg          ≤1010
重金属（以Pb计），mg/kg         ≤Heavy metal(as Pb),mg/kg      ≤————————
水不溶物，w/%                 ≤Insoluble substances,w/%      ≤————————
铅（Pb），mg/kg                ≤Lead(Pb),mg/kg              ≤24
汞（Hg），mg/kg                 ≤Mercury(Hg),mg/kg           ≤————1
镉（Cd），mg/kg                 ≤Cadmium(Cd),mg/kg          ≤————1
灼烧减量，w/%                 ≤Loss on ignition,w/%          ≤————2
pH值（10g/L溶液）pH value(10g/L Solution )————Max 7.8
P2O5，w/%                     ≤P2O5,w/%                   ≤————8
粘性Viscosity6.5-15cP————
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1、Chemical Name: Potassium Metaphosphate

2、Molecular Formula: KPO3

3、Molecular Weight: 118.07

4、CAS: 7790-53-6

5、Character: Colorless or white glassy substance, fragmentary crystal or white powder. Odorless. Strong hygroscopicity. With the increase of the degree of polymerization, it gradually becomes transparent and glassy, and the hygroscopicity also increases. It can improve the dispersibility of starch and chelate with metal ions in aqueous solution.

6、Usage:In food industry, it is used as emulsifier, humectant, sequestrant, stabilizing agent, tissue improver, binder, stabilizer, color-protecting, antioxidants, preservatives.It is mainly used in meat products, cheese and evaporated milk.

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 & Transportation: 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.