Product Description:
Product name: Disodium Phosphate 97%(DSP)
Chemical formula: Na2 HPO4·XH2O(X=0,12)
Molecuar weight:358.0
CAS No.: 7558-79-4
EINECS No.: 231-448-7
Product Characteristics:
White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.63, melting point at 34.6°C.
Product Technical Data:
| Item | Na2HPO4 | Na2HPO4·12H2O | ||
| Industrial Grade | Food Grade | Industrial Grade | Food Grade | |
| Main contents % ≥ | 98 | 98 | 97 | 97 |
| PH of 1% water solution % ≤ | 8.5-10.0 | 8.5-10.0 | 8.5-9.2 | 8.8-9.2 |
| Sulfate, as SO4 % ≤ | / | / | 0.7 | 0.25 |
| Heavy metals, as Pb % ≤ | / | 0.001 | / | 0.001 |
| Arsenic, as As % ≤ | / | 0.0003 | / | 0.0003 |
| Fluoride, as F % ≤ | / | 0.005 | / | 0.005 |
| Water insoluble % ≤ | 0.1 | 0.1 | 0.1 | 0.1 |
Product Application:
Used as a fire-prevention agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, etc.
Product Package:
In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.