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多聚磷酸鉀

一、化學(xué)名：多聚磷酸鉀，偏磷酸鉀

二、分子式：KPO3

三、分子量：118.07

四、CAS：7790-53-6

五、性狀：無色或白色玻璃狀物，呈碎片狀結(jié)晶或?yàn)榘咨勰?。無臭。吸濕性強(qiáng)。隨著聚合度的增大，逐漸成為透明的玻璃狀，吸濕性也隨之增大。具有提高淀粉分散性的能力，與水溶液中的金屬離子有螯合作用。

六、用途：在食品工業(yè)中作乳化劑、保濕劑、螯合劑、穩(wěn)定劑、組織改進(jìn)劑、粘結(jié)劑、護(hù)色劑、抗氧劑、防腐劑。可以用于肉類制品、干酪和淡煉乳。

七、包裝：內(nèi)襯聚乙烯塑料袋，外套復(fù)合塑料編織袋包裝，每袋凈重25kg。

八、貯存與運(yùn)輸：本品應(yīng)貯存在干燥通風(fēng)清潔的庫房中，裝載運(yùn)輸時(shí)要輕裝輕放，防止包裝破損，防止受潮、受熱，運(yùn)輸過程中防止雨淋受潮，應(yīng)與有毒物品隔離。

質(zhì)量指標(biāo)Specification FCC VIIE452(ii)
含量（以P2O5計(jì)），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計(jì)），mg/kg          ≤Fluoride(as F),mg/kg          ≤1010
重金屬（以Pb計(jì)），mg/kg         ≤Heavy metal(as Pb),mg/kg      ≤————————
水不溶物，w/%                 ≤Insoluble substances,w/%      ≤————————
鉛（Pb），mg/kg                ≤Lead(Pb),mg/kg              ≤24
汞（Hg），mg/kg                 ≤Mercury(Hg),mg/kg           ≤————1
鎘（Cd），mg/kg                 ≤Cadmium(Cd),mg/kg          ≤————1
灼燒減量，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.