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磷酸氢二钠 科伦多供应
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产品: 浏览次数:57磷酸氢二钠 科伦多供应 
品牌: 科伦多
产品型号: 食品级
产品规格: 25kg/袋
最小起订量: 1 吨
供货总量: 10000 吨
发货期限: 自买家付款之日起 3 天内发货
有效期至: 长期有效
最后更新: 2025-02-07 08:32
  询价
详细信息
 一、化学名:磷酸氢二钠 

二、分子式:Na2HPO4Na2HPO4·2H2ONa2HPO4·12H2O

三、分子量:无水物:141.958;二水物:177.998;十二水物:358.198

四、CAS无水物:7558-79-4;二水物:10028-24-7;十二水物:10039-32-4

五、性状无水物为白色粉末,十二水物为白色结晶性粉末或颗粒,易溶于水,不溶于乙醇,相对密度为1.52,熔点34.6℃180℃时失去结晶水成无水物,无水物易吸潮。水溶液呈碱性。 

六、用途:食品中作焙制品,防止氧化变色,奶制品的乳化剂,防止蛋白凝固,固体饮料起螯合乳化缓冲作用。还可以用于软水剂、防火剂、工业水质处理剂和洗涤剂。

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

GB 1886-329-2021

FCC VII

含量Na2HPO4(以干基计),w/%  

Content Na2HPO4,( On dry basis),w/%

98.0

98.0

砷(As),mg/kg                

Arsenic(As),mg/kg               

3.0

3.0

重金属(以Pb计),mg/kg        

Heavy metal(as Pb),mg/kg         

10

———

铅(Pb),mg/kg                 

Lead(Pb),mg/kg                  

4.0

4.0

氟化物(以F计),mg/kg         

Fluorides(as F),mg/kg             

50.0

50.0

水不溶物,w/%                

Insoluble substances,w/%          

0.2

0.2

干燥减量,w/%  

Na2HPO4      

Loss on drying,w/%

Na2HPO4          

5.0

5.0

Na2HPO4·2H2O

Na2HPO4·2H2O

18.0-22.0

18.0-22.0

Na2HPO4·12H2O

Na2HPO4·12H2O   

61.0

———

1Chemical Name: Disodium Phosphate

2Molecular Formula: Na2HPO4 ; Na2HPO4·2H2O ; Na2HPO4·12H2O

3Molecular Weight: Anhydrous:141.958 ; Dihydrate:177.998 ; Dodecahydrate:358.198

4CAS: Anhydrous:7558-79-4 ; Dihydrate:10028-24-7 ; Dodecahydrate:10039-32-4

5Character: It is white or colorless rhombic crystalline or prismatic crystal. It’s easily soluble in water, but insoluble in ethanol. The relative density is 1.52 and melting point is 34.6℃. If heated to 180℃, it will lose crystal water and convert to anhydrous.

6Usage: In food industry, it is used as agent for baking to avoid oxidation stain and as emulsifier in dairy product to prevent egg white from solidification. It is also used as emulsifier and chelating agent for solid drinks.It can also be used as water softener, fire retardant, industrial water treatment agent and detergent.

7Packing: 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.  

8Storage 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.
磷酸氢二钠二水(2)磷酸氢二钠二水正面1工厂图片

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