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Potassium dihydrogen phosphate anhydrous
Product Identifier
Product Description
| Molecular weight |
136.09 |
| Molecular formula |
KH2PO4 |
| CAS No. |
7778-77-0 |
| Synonyms |
Monobasic Potassium phosphate |
Technical Specification
| Appearance (EP, BP) |
White or almost white crystalline powder or colourless crystals |
| Solubility (EP, ВР) |
Freely soluble in water, practically insoluble in ethanol (96%) |
| pH (c = 10% in water at 25°C) (ЕР, ВР) |
4.20-4.50 |
| Identification A (USP) |
Reactions for potassium |
| Identification A (EP, BP) |
10% in water is faintly acid |
| Identification B (USP) |
Reactions for phosphate |
| Identification B (EP, BP) |
Reactions for phosphate |
| Identification C (EP, BP) |
Reactions for potassium |
| Appearance of solution (EP, BP) |
Solution is clear and colourless. |
| Insoluble substances (USP) |
<= 0.2% |
| Arsenic (USP) |
<= 0.0003% |
| Arsenic (EP, BP) |
<= 0.0002% |
| Chloride (EP, BP) |
<= 0.02% |
| Heavy metals (USP) |
<= 0.002% |
| Iron (EP, BP) |
<= 0.001% |
| Sulphate (EP, ВР) |
<= 0.03% |
| Fluoride (USP) |
<= 0.001% |
| Reducing substances (EP, BP) |
Passes test |
| Sodium (EP, BP) |
<= 0.10% |
| Lead (USP) |
<= 0.0005% |
| Loss on drying (at 105°, 4hr) (USP) |
<= 1.00% |
| Loss on drying (at 125 - 130°C) (EP, BP) |
<= 2.00% |
| Assay (NaOH T, on dry basis) (USP) |
98.00 - 100.50% |
| Assay (NaOH T, on dry basis) (EP, BP) |
98.00 - 100.50% |
Storage Information
| Storage Conditions |
Store below 30°C. |
| Shelf life |
48 months. |
| Usage Instruction |
Use before expiry date given on the product label. |
CAS Number :
7778-77-0
Molecular Formula :
KH₂PO₄
More Information
| Product Name |
Potassium dihydrogen phosphate anhydrous |
| SKU |
TC011M |
| CAS No |
7778-77-0 |
| EC No. |
231-913-4 |
| Molecular formula |
KH₂PO₄ |