|
Item |
Specifications |
|
Appearance |
White or almost white crystal powder. |
|
Content % |
≥98.0 |
|
PH value |
3.0-6.0 |
|
Melting Point °C |
111-116 °C |
|
Drying loss % |
≤1 |
|
Free Vitamin C |
Can't be detected |
|
Ignition residue % |
<0.1 |
|
Heavy metals % |
≤0.002 |