Product name |
Potassium dihydrogen phosphate |
Specification |
Food grade |
Molecular formula |
KH2PO4 |
CAS |
7778-77-0 |
H.S. CODE |
2835240000 |
Molecular weight |
136.09 |
Appearance |
Colorless crystal |
Package |
25KG Woven bags or fiber drums |
Property:
Colorless sifang crystals or white crystalloid powder. The relative density 2.338. Melting point 252.6 ℃. Soluble in water (90 ℃ for improve g / 100ml canister water), become acidic aqueous solution, 1% linsuanerqingjia solution pH value is 4.6. Not soluble in alcohol. Have ChaoXie sex. Heating and 400 ℃ melted and transparent liquid, after cooling curing is not transparent glass shape partial potassium phosphate.
Application:
Analytics reagents, such as configuration standard solution, buffer a PH. Also used in the pharmaceutical industry, piezoelectric element and electric optical components production.
Test standard:GB 25560-2010
Test items |
Specification |
Food grade |
|
Appearance |
Colorless crystal |
Assay |
≥98.0% |
pH |
4.2~4.7 |
Water insoluble |
≤0.2% |
Loss on dry |
≤1.0% |
Fluoride |
≤10mg/kg |
Arsenic |
≤3mg/kg |
Lead |
≤2mg/kg |
Heavy metals |
≤10mg/kg |
Storage:
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.