| Color and character |
Colorless tetragonal crystal or white crystalline powder. |
| density |
2.338 g/mL at 25 °C(lit.) |
| melting point |
252.6 °C (lit.) |
| boiling point |
158 °C at 760 mmHg |
| Refractive index |
Index of refraction: 1.5093, 1.4682, both at 589 nm |
| PH value |
4.2-4.6 (20g/l, H2O, 20ºC) |
| solubility |
H2O: 1.5 M at 20 °C, clear, colorless |
| Water solubility |
222 g/L (20 ºC) |
| PSA |
90.40000 |
| LogP |
-0.49040 |
| Merck |
14,7659 |
| concentration |
1.0 M in solution |
| Solubility |
Soluble in water, the aqueous solution is acidic and insoluble in alcohol. Deliquescent. |
| susceptibility |
Hygroscopic |
| Acidity coefficient (PKA) |
(1) 2.15, (2) 6.82, (3) 12.38 (at 25ºC) |
Use
1, It is used as fertilizer, flavoring agent, brewing yeast culture agent, preparation of buffer solution, medicine and production of potassium metaphosphate.
2, Used as chromatographic analysis reagent and buffer, and also used in pharmaceutical synthesis
3, It is used for fertilizing rice, wheat, cotton, rape, tobacco, sugar cane, apple and other crops
4, As feed phosphorus supplement additive.
5, In the food industry, it is used to make baking products, as bulking agents, flavoring agents, fermentation AIDS, nutritional enhancers and yeast food. Also used as buffer and chelating agent.
6, The product quality improver can improve the complex metal ions, pH value and ionic strength of food, thereby improving the binding force and water holding capacity of food. According to Chinese regulations, it can be used for wheat flour with a maximum dosage of 5.0g/kg; The maximum dosage in the beverage is 2.0g/kg.
7, It is used as a dietary supplement.
8, It is used as a high-efficiency phosphorus and potassium compound fertilizer, suitable for various soils and crops. It is also used as a bacterial culture agent, a flavoring agent for the synthesis of sake, and a raw material for the preparation of potassium metaphosphate. It is used in medicine to acidify urine and as a nutrient.
9, Prepare buffer solution, determine ar senic, antimony, phosphorus, aluminum and iron, prepare phosphorus standard solution, prepare various culture media for haploid breeding, determine inorganic phosphorus and alkaline acid enzyme activity in serum, prepare bacterial serum and culture media for detecting Leptospira. Calibration instruments and devices; Evaluation method; Work standards; Quality assurance / quality control; other.
Audited Supplier 
){kind=link}