| ≥1 piece |
|
Items |
Specification |
|
Appearance: |
White crystalline powder |
|
Content % |
≥99.0 |
|
Moisture % |
≤8.0 |
|
Water insoluble matter % |
≤0.15 |
|
Free acid¨as propionic acid ???% |
≤0.11 |
|
Free alkali¨as sodium hydroxide ?% |
≤0.06 |
|
Fluoride ¨F?% |
≤0.003 |
|
Mg¨as magnesia ?% |
≤0.4 |
|
Heavy metal ¨as Pb?% |
≤0.001 |
|
As¨as arsenic oxide ?% |
≤0.0002 |
|
PH |
7.0 - 9.0 |