“食品级二水磷酸氢二钠”参数说明
是否有现货: | 是 | 认证: | ISO,kosher,halal FDA |
类型: | 正磷酸盐 | 种类: | 钠盐 |
形态: | 颗粒状 | 等级标准: | 食品级 |
型号: | 二水磷酸氢二钠 | 规格: | 二水 |
商标: | 科多 | 包装: | 25公斤袋 |
CAS: | 7558-79-4 | 产量: | 10000 |
“食品级二水磷酸氢二钠”详细介绍
磷酸氢二钠 DISODIUM PHOSPHATE
一、化学名:磷酸氢二钠
二、分子式:Na2HPO4,Na2HPO4・2H2O,Na2HPO4・12H2O
三、分子量:无水物:141.96;二水物:177.99;十二水物:358.14
四、CAS:无水物:7558-79-4;二水物:10028-24-7;十二水物:10039-32-4
五、性状:白色或无色斜方晶体或单斜晶系结晶,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。
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。
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 25568-2010 |
FCC VII |
||
含量Na2HPO4(以干基计),w/% ≥ |
Assay (Na2HPO4, Dry Basis),w/% ≥ |
98.0 |
98.0 |
||
(As),mg/kg ≤ |
As, mg/kg ≤ |
3 |
3 |
||
重金属(以Pb计),mg/kg ≤ |
Heavy Metal (Pb), mg/kg ≤ |
10 |
―――― |
||
铅(Pb),mg/kg ≤ |
Pb,mg/kg ≤ |
4 |
4 |
||
化物(以F计),mg/kg ≤ |
Fluorides,mg/kg ≤ |
50 |
50 |
||
水不溶物,w/% ≤ |
Insoluble Substances,w/% ≤ |
0.2 |
0.2 |
||
干燥减量,w/% |
Na2HPO4 ≤ |
Loss On Drying |
Na2HPO4 ≤ |
5.0 |
5.0 |
Na2HPO4・2H2O |
Na2HPO4・2H2O |
18.0-22.0 |
18.0~22.0 |
||
Na2HPO4・12H2O ≤ |
Na2HPO4・12H2O ≤ |
61.0 |
―――― |
1、Chemical Name: Disodium Phosphate
2、Molecular Formula:, Na2HPO4,Na2HPO4・2H2O,Na2HPO4・12H2O
3、Molecular Weight: Anhydrous: 141.99; Dihydrate: 177.96; Dodecahydrate: 358.14
4、CAS: Anhydrous: 7558-79-4; Dihydrate: 10028-24-7; Dodecahydrate: 10039-32-4
5、Character: ’s easily soluble in water,1.52 and melting point is 34.6℃. If heated to 180℃, it will lose crystal water and convert to anhydrous.
6、Usage: In food industry,.
7、Packing: 25kg.
8、Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation,, it must be stored separately from poisonous substances.