柠檬酸钠 SODIUM CITRATE
一、化学名称：柠檬酸钠，2-羟基丙烷-1,2 ,3-三羧酸钠二水物，枸缘酸钠
二、分子式：Na3C6H5O7·2H2O
三、分子量： 249.10
四、CAS：68-04-2
五、性 能： 无色或白色结晶颗粒或结晶性粉末，无臭、味咸，凉、溶于水，难溶于乙醇，在潮湿空气中微有潮解性。5% 水溶液的 PH 为 7.6-8.6，150 ℃失去结晶水。
六、用 途：食品工业中作缓冲剂、螯合剂、酪乳的营养增补剂、乳化剂、调味剂等。如在清凉饮料中可缓和柠檬酸的酸味，可防止乳制品的酸败，用于干酪、肉糜的增粘剂，果冻、果汁的胶凝剂、干酪、冰淇淋的乳化剂、稳定剂。
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 。
|
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.
