|
TESTS |
STANDARD |
|
appearance |
white or yellow powder |
|
content |
98.0% MIN |
|
impurity |
0.5% MAX |
|
melting point |
88.0-90.0 |
|
loss on drying |
0.5% MAX |
|
Heavy metal |
20ppm max |
| Residue on ignition | 0.1% max |
|
TESTS |
STANDARD |
|
appearance |
white or yellow powder |
|
content |
98.0% MIN |
|
impurity |
0.5% MAX |
|
melting point |
88.0-90.0 |
|
loss on drying |
0.5% MAX |
|
Heavy metal |
20ppm max |
| Residue on ignition | 0.1% max |