描述
| 編號 | 容量 |
| WKO-017-19362 | 25g |
| WKO-017-19362 | 500mL |
VA-044 is a non-nitrile, cationic water-soluble azo polymerization initiator. It is highly effective for the polymerization of water-soluble vinyl monomer. The 10-hour half-life temperature is as low as 44 ºC, and the product is active at low temperatures.
- Non-nitrile water-soluble azo initiator having low decomposition temperature
- Soluble in water or methanol
- 10 Hour half-life decomposition temperature; 44℃(in water)
| Chemical name | 2,2′-Azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride |
|---|---|
| CAS RN® | 27776-21-2 |
| Molecular weight | 323.27 |
Physical characteristics
| Color Appearance |
pale yellow crystals or crystalline powder |
|---|---|
| Melting point/freezing point | 188-193(dec.) °C |
| 10hour half-life decomposition temperature | 44℃（in water） |
| Activation energy | 108.2 kJ/mol K |
| Frequency factor (ln A) | 30.19 |
| Solubilities | water : freely soluble. methanol : sparingly soluble. ethanol : very slightly soluble. acetone, toluene : insoluble. |
| SADT | 140℃ |
*SADT: Self-accelerating decomposition temperature
Packaging & Storage conditions
| Packaging | 20kg / 500g |
|---|---|
| Storage conditions | keep under 40℃ |
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