Technical Information
| C.I. Direct Red 28 | Synonym |
|---|---|
|
573-58-0
|
CAS-No
|
|
209-358-4
|
EC-No
|
|
C32H₂₂N₆Na₂O₆S₂
|
Linear formula
|
|
Red-brown to brownishred powder
|
Appearance
|
|
25 g/l (20ºC)
|
Solub. in H2O
|
|
6.7 (10 g/l, H2O, 20ºC)
|
pH value
|
|
696.66 g/mol
|
Molecular Weight
|
|
>360ºC
|
Melting point
|
|
<1 hPa (20 ºC)
|
Vapour pressure
|
|
600-700 Kg/m3
|
Bulk. Density
|
|
3204-14-00
|
HS-No
|
|
Cause cancer, H301, H350, H361d, P280, P301+P310, P330, P308+P313
|
GHS
|
|
Keep container tightly closed in a dry and well-ventilated place
|
Storage Conditions
|
|
pH 3.0 – pH 5.2 (Violet – orange red)
|
Transition range
|
|
≤5%
|
Loss on drying (110°C)
|
