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|
est |
Specifications |
Result |
|
Characteristic |
Colorless or white crystalline powder |
Complies |
|
Identification |
Pass the test |
Complies |
|
Clarity and color of solution |
Pass the test |
Complies |
|
Barium |
Pass the test |
Complies |
|
Calcium |
≤ 200 ppm |
< 200ppm |
|
Heavy metals |
≤ 10 ppm |
< 10 ppm |
|
Iron |
≤ 50 ppm |
< 50 ppm |
|
Chloride |
≤ 50 ppm |
< 50 ppm |
|
Sulphates |
≤ 150 ppm |
< 150 ppm |
|
Oxalate |
≤ 350 ppm |
< 350 ppm |
|
Readily carbonisable substances |
Pass the test |
Complies |
|
Sulphated ash |
≤ 0.1% |
0.04% |
|
Arsenic |
≤1 ppm |
< 1 ppm |
|
Lead |
≤ 1 ppm |
< 1 ppm |
|
Mercury |
≤ 1 ppm |
< 1 ppm |
|
Foreign matters |
Pass the test |
Complies |
|
Aluminum |
≤ 0.2 ppm |
< 0.1 ppm |
|
Water |
7.5% ~ 9.0% |
8.68% |
|
Assay |
99.5% ~ 101.0% |
99.96% |
|
CONCLUSION: THE GOOD CONFORM TO THE STANDARD OF BP98 |
||
