Dipotassium hydrogen phosphate (anhydrous)
- Số CAS
- 7758-11-4
- Khối lượng phân tử
- Công thức phân tử / ký hiệu hóa học
- K2HPO4
Mô tả
White granular or crystalline powder. Sensitive wetlands. The after burning pyrophosphate. Soluble in water, the solution is alkaline, slightly soluble in ethanol.
Keywords: Phosphate
ỨNG DỤNG
In food industry as buffering agents, chelating agents, yeast food, emulsifying salt, antioxidant synergist.
Phiếu kiểm nghiệm
|
Name |
Dipotassium hydrogen phosphate (anhydrous) |
CAS: 7758-11-4 |
|
Characters |
White granular or crystalline powder |
|
|
Chemical formula |
K2HPO4 |
Purity: |
|
Quality indicators |
GB 25561-2010 |
FCC-1997 |
|
Content (dry basis) ≥% |
98.0 |
98.0 |
|
Arsenic ≤% |
0.0003 |
0.0003 |
|
≥% P2O5 content |
39.94(Anhydrous) |
39.94(Anhydrous) |
|
30.52(Trihydrate) |
30.52(Trihydrate) |
|
|
≥% K2O content |
52.94(Anhydrous) |
52.94(Anhydrous) |
|
40.4(Trihydrate) |
40.4(Trihydrate) |
|
|
Fluoride (F) ≤% |
0.001 |
0.001 |
|
Heavy metals (Pb) ≤% |
0.001 |
0.0015 |
|
Water insoluble matter ≤% |
0.2 |
0.2 |
|
Lead ≤% |
0.0002 |
0.0002 |
|
Loss on drying% |
≤2.0（Anhydrous） |
≤2.0（Anhydrous） |
|
20.0-30.0 (Trihydrate) |
20.0-30.0 (Trihydrate) |
|
|
pH value |
9.0+0.4 |
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