| Molecular Formula | H2NaO4P |
| Molar Mass | 119.98 |
| Use | Use in food processing as a quality improver, emulsifier, nutritional supplement, baking powder buffer, pickling mixed salt, powder sour agent. The pharmaceutical industry is used to make excitement tablets and fruit salts. |
| Raw Materials | Phosphoric acid PHOSPHORIC ACID TECH.GRADE |
Solubility in water (g/100ml)
Dissolved grams per 100 ml of water at different temperatures (℃):
56.5g/0℃;69.8g/10℃;86.9g/20℃;107g/30℃;133g/40℃
172g/60℃;211g/80℃;234g/90℃
Toxicity
LD50 (intraperitoneal injection in rats):250 mg/kg. ADI:0~70 mg/kg (in terms of phosphorus). The amount used for condensed milk is 0.2% ~ 0.3%. Used as a stabilizer and binder for meat and fish products (ham, sausage) with 0.4% usage. The amount of corned beef used is 0.2% ~ 0.3%.
Production method
recrystallization method dissolves industrial grade sodium dihydrogen phosphate in non-ionized water at 80~85 ℃ to form a saturated solution, and adds decolorant, heavy metal remover and arsenic remover for purification. Add edible phosphoric acid to adjust the pH value. After filtration, cooling crystallization, centrifugal separation and drying at room temperature, the finished product of sodium dihydrogen phosphate dihydrate is prepared. Its
NaH2PO4?2H2O→NaH2PO4?2H2O