Sodium Citrate

Trisodium citrate,Trisodium 2-hydroxypropane-1,2,3 tricarboxylate

CAS Number	Molecular Formula	Classifications	H.S. Code
68-04-2 ( Anhyd.) 6131-04-3 ( Dihydrate)	Na₃C₆H₅O₇	Citric Acid Sodium Salt	29181520

Parameter	Specification
Characteristics	White fine granular and odorless powder
Identification	To pass test
pH (of 1% solution)	3.5-3.8
Solubility	Pass
Chloride	50 mg/kg max
Oxalic acid/oxalate	100 mg/kg max
Sulphate	150 mg/kg max
Heavy metals (as lead)	5 mg/kg max
Arsenic	1 mg/kg max
Lead	1 mg/kg max
Mercury	1 mg/kg max
Loss on drying	0.4% max ( Anhyd.)
Assay	99-101% ( Anhyd.)
Microbial	-
Total aerobic microbial count	100 cfu/lg max
Total combined yeast and mold	20 cfu/1 g max
Escherichia coli	Negative/25 g
Bile-Tolerant Gram-Negative Bacteria (before Enterobaceriaceae)	Negative/25 g
Salmonella	Negative/25 g
Staphylococcus aureus	Negative/1g

It is mainly used as food additive and preservative.
Sodium Citrate is used an anticoagulant in blood transfusions.
It is used to relieve discomfort in urinary tract infections
It also works as buffering agent in food and acidity regulator as antacid
It is used as a sequestrant - to improve the quality and stability of the food products
It is used as an emulsifier - to stabilize processed foods like cheese