|
质量指标
|
Specification
|
BP93
|
GB6782-2009
|
|
外观
|
Appearance
|
Colourless Or White Crystalline Powder
|
|
透光率 ≥%
|
Light Transmittance
|
－－
|
95
|
|
含量(Na3C6H5O7.2H2O) %
|
Assay (Na3C6H5O7·2H2O)
|
99.0~101.0
|
99.0~100.5
|
|
酸碱度
|
Acidity or alkalinity
|
0.2
|
Accord with the test
|
|
硫酸盐 ≤%
|
Sulphates
|
0.015
|
0.01
|
|
重金属(以Pb计) ≤%
|
Heavy Metal (Pb)
|
0.001
|
——
|
|
草酸盐 ≤%
|
Oxalate
|
0.03
|
0.01
|
|
铁盐 ≤mg/kg
|
Iron Salt
|
——
|
5
|
|
钙盐 ≤%
|
Calcium Salt
|
——
|
0.02
|
|
易碳化物
|
Readily Carbonizable Substances
|
Accord With The Test
|
1.0
|
|
氯化物 ≤%
|
Chlorides
|
0.005
|
0.005
|
|
铅 ≤mg/kg
|
Lead
|
——
|
2
|
|
砷 ≤mg/kg
|
Arsenic
|
——
|
1
|
|
干燥失重 %
|
Loss On Drying
|
11.0~13.0
|
10.0~13.0
|
1、Chemical Name: SODIUM CITRATE
2、Molecular Formula: Na3C6H5O7·2H2O
3、Molecular Weight: 249.10
4、CAS: 68-04-2
5、Character: It is colourless or white crystalline granule or crystalline powder, odorless, tastes salty and cool. It’s soluble in water, difficulty in ethanol and slightly deliquescent in moist. PH value is 7.6-8.6 in 5% aqueous solution. If heated to 150℃,it may lose crystal water.
6、Usage: In food processing industry, it is used as buffer, chelating agent and nutrition supplement, emulsification, flavoring for yoghurt. If in cool drink, it can abirritate the sourness of citrate acid, prevent the acidification of dairy products. It is used as binder in cheese and minced meat, gelatinize in jellies and syrup, emulsification and stabilizer in cheese and ice cream.
7、Packing: It is packed with polyethylene bag as liner and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
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