| ≥1 piece |
stable quality
competitive price
professional service
|
SUBJECT |
STANDARD |
|
|
Characters |
White Crystals |
|
|
specification |
30-100mesh |
|
|
Identification
|
Passes test |
|
|
Clarity and color of solution
|
Clear and colourless |
|
|
Acidity or Alkalinity
|
Passes test |
|
|
Tartrate |
Passes test |
|
|
Chlorides
|
50 ppm max |
|
|
Sulphates
|
150 ppm max |
|
|
Oxalates
|
100 ppm max |
|
|
Heavy metal(as Pb)
|
5 ppm max |
|
|
Lead |
1 ppm max |
|
|
Readily carbonisable substances |
Not deeper than standard |
|
|
Pyrogens
|
Passes test |
|
|
Loss on drying
|
11.0-13.0% |
|
|
Arsenic
|
1ppm max |
|
|
Mercury
|
1ppm max |
|
|
PH 5%aqua solution |
7.5-9.0 |
|
|
Purity
|
99.0-101.0 |
|