|
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.
