| ≥1 piece |
|
ITEM |
STANDARD |
RESULTS |
|||
|
CHARACTERS |
A WHITE, COLORLESS |
A WHITE, COLORLESS |
|||
|
ASSAY |
99.0%~100.5% |
99.62% |
|||
|
OXALATE |
≤ 0.03% |
< 0.03% |
|||
|
LOSS ON DRYING |
3.0%~6.0% |
4.56% |
|||
|
Na |
≤ 0.03% |
< 0.03% |
|||
|
acidity and alkalinity |
Pass the test |
Pass the test |
|||
|
HEAVY METALS |
≤ 0.001% |
< 0.001% |
|||
|
EASY CARBONIFY SUBSTANCE |
Pass the test |
Pass the test |
|||
|
SULPHATES |
≤ 0.015% |
< 0.015% |
|||
|
CHIORIDE |
≤ 0.005% |
< 0.005% |