| Sample |
Potassium dihydrogen phosphate |
Quantity |
35t |
Sampling date |
2014.09.24 |
| Sample from |
Storehouse |
Batch NO. |
140905 |
Test date |
2014.09.24 |
| Standard: HG/T4511-2013 |
| Item |
Index value |
Results |
| Top grade |
First grade |
Qualified products |
| Appearance |
White, light-colored crystals or powder |
White crystal |
| Potassium dihydrogen phosphate (KH2PO4) w/ % ≥ |
99.0 |
98.0 |
97.0 |
99.2 |
| K2O w/ % ≥ |
34.0 |
33.5 |
33.0 |
34.1 |
| Moisture (H2O) w/ % ≤ |
0.5 |
1.0 |
2.0 |
0.1 |
| Chloride (as CL) w/ % ≤ |
0.05 |
0.2 |
- |
0.002 |
| Iron (Fe) w/ % ≤ |
0.003 |
0.008 |
- |
0.0003 |
| Arsenic (As) w/ % ≤ |
0.005 |
0.015 |
- |
0.003 |
| Heavy metal (as Pb) w/ % ≤ |
0.005 |
0.008 |
- |
＜0.005 |
| Water insoluble matter w/ % ≤ |
0.1 |
0.2 |
0.5 |
0.02 |
| PH(30g/L solution) |
4.3 to 4.7 |
4.5 |
Evaluation:
in accordance with HG/T4511-2013 |
 |
| Tested by |
Xu Hui |
Checked by |
Tan Qin |
Approved by |
 |
| Date |
2014.09.24 |
Date |
2014.09.24 |
Date |
2014.09.24 |
