Sodium Dihydrogen Phosphate Dihydrate
EP, USP + LEC + Microbiological requirements
CAS #:
13472-35-0
Molecular Formula:
H2NaO4P . 2H2O
Synonym:
Sodium orthophosphate, Sodium biphosphate, Sodium phosphate monobasic
Molecular Weight:
156.02 g/mol
Overview
Sodium Phosphate, Monobasic, Dihydrate is one of the sodium salts derived from phosphoric acid. Highly hygroscopic and water soluble it comes in the form of a white powder. In an aqueous solution it is basic, with a pH value between 8.0 and 11.0. It is added in animal feed, toothpaste, and evaporated milk. It is used as a thickening agent and emulsifier.
| Characters | Unit | Specification |
|---|---|---|
| Identity A (EP,BP) | Acc.to requirements | |
| Identity B (EP,BP) | Acc.to requirements | |
| Identity C (EP,BP) | Acc.to requirements | |
| Identity D (EP,BP) | Acc.to requirements | |
| Identity A (USP) | Acc.to requirements | |
| Identity B (USP) | Acc.to requirements | |
| Appearance of solution (EP,BP) | Correlates to test | |
| Al,Ca and related elements USP | Correlates to test | |
| Reducing substances (EP,BP) | Correlates to test | |
| Assay (EP,BP) | % | 98,0-100,5 |
| Assay (USP) | % | 98,0-103,5 |
| Loss on drying (EP,BP) | % | 11,5-14,5 |
| Water (USP) | % | 10,0-15,0 |
| Ph (5%) | 4,2-4,5 | |
| Insoluble matter in water (USP) | % | <=0,20 |
| Heavy metals (as Pb) | mg/kg | <=10 |
| Arsenic (USP) | mg/kg | <=8 |
| Arsenic (EP,BP) | mg/kg | <=2 |
| Iron (EP,BP) | mg/kg | <=10 |
| Sulphates (USP) | mg/kg | <=1500 |
| Sulfates (EP,BP) | mg/kg | <=300 |
| Chlorides (USP) | mg/kg | <=140 |
| Chlorides (EP,BP) | mg/kg | <=200 |
| Bacterial endotoxine | lU/g | <=5 |
| TAMC 30oC (Total aerobic microbial count) | cfu/g | <=50 |
| TYMC | cfu/g | <=10 |
| Escherichia coli | cfu/g | |
| Staphylococcus aureus | cfu/g | |
| Pseudomonas aeruginosa | cfu/g | |
| Salmonella | cfu/10g |
Shelf Life/Retest Date: Sodium Dihydrogen Phosphate Dihydrate CAS NO. 13472-35-0 raw material can be kept for at least 2 years if stored in a cool and dry place.
Storage/Shipping Conditions:
- Store protected from solvents.
- Requirements for storage rooms and vessels.
- Keep tightly closed.
- Keep in a dry place.
- Storage temperature recommended: < 25°C
Pack Sizes: 100 gm
