偏磷酸钾potassium metaphosphate
一、化学名：偏磷酸钾
二、分子式：(kpo3)n
三、分子量：可达50万
四、cas：7790-53-6
五、性状:白色结晶性粉末或粒状
六、用途：在食品工业中作水产调味的组织改进剂、金属螯合剂、脂肪乳化剂、保湿剂、水的软化剂、蛋白质沉淀剂。
七、包装：净重：25kg/袋，内塑料袋、外编织袋或牛皮纸袋。
八、贮存与运输：应贮在干燥，通风清洁的库房中，轻装轻放，防止受潮、受热，运输过程中防止雨淋受潮，与有毒物品隔离堆放。
质量指标
specification
fcc
五氧化二磷含量     %
content (p2o5)
59.0-61.0
砷               ≤%
arsenic ( as )
0.0003
氟化物          ≤%
fluorides ( f )
0.001
铅             ≤%
pb
0.0002
粘度
viscosity
(6.5-15)x 10-3 pa.s
1、chemical name:potassium metaphosphate
2、molecular formula:(kpo3)n
3、molecular weight:it can be up to 500,000.
4、cas:7790-53-6
5、character:highly polymeric straight line phosphate salt, it may have few potassium trimetaphosphate of circularity structure and tetrapotassium pyrophosphate of circularity structure. white or colorless crystals or pieces, sometime white fiber or powder. odourless,slowly soluble in water ,its solubility is according the polymeric of the salt, usually 0.004%. its water solution is alkaline.soluble in enthanol.
6、usage:used as a fatter emulsifier, enhance water holding capacity, water soften agent, chelating agent and texture modifier mainly used in seafood flavors.
7、packing:it is packed with polyethyene bag as liner, and a compound plastic woven bag as the outer layer. the net weight of each bag is 25kgs.
8、storage and transport:it should be stored in a dry and ventilative warehouse, kept away from water and moisture during transport.unloaded with care as to avoid being damaged. furthermore, it must be stored separately from poisonous substances.

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