Potassium dihydrogen phosphate
- Số CAS
- 7778-77-0
- Khối lượng phân tử
- 136.09
- Công thức phân tử / ký hiệu hóa học
- KH2PO4
Mô tả
Apearances: Colorless crystals or white granular powder. pH4.4 ~ 4.7. Stable in air. Hygroscopic, soluble in water, insoluble in alcohol, the aqueous solution was slightly alkaline, molecular content dehydrated in 204, 1% aqueous solution pH value of 8.9. Solubility in water: 222 g / L (20 ° C).
ỨNG DỤNG
Preparation buffer, Determination of arsenic,
antimony, phosphorus, aluminum, and iron, preparation of the standard solution
of phosphorus, preparation haploid breeding using various media, the
determination of inorganic phosphorus in serum alkaline acid enzyme activity,
the preparation of the bacterial serology Leptospira the medium.
Keywords:Surface treatment chemicals
Phiếu kiểm nghiệm
|
TEST ITEMS |
TEST RESULT |
|
|
|
AR |
CP |
|
KH2PO4 |
≥99.5 |
99.0 |
|
pH(50g/L,25℃) |
4.2～4.5 |
4.2～4.5 |
|
Clarity Test |
Qualified |
Qualified |
|
Water insoluble matter |
≤0.002 |
0.005 |
|
Loss on drying |
≤0.2 |
0.3 |
|
Chloride (Cl) |
≤0.001 |
0.005 |
|
Sulfate (SO4) |
≤0.003 |
0.005 |
|
Total nitrogen amount (N) |
≤0.001 |
0.002 |
|
As |
≤0.0005 |
0.002 |
|
Na |
≤0.02 |
0.05 |
|
Fe |
≤0.001 |
0.005 |