VA-061
CAS : 20858-12-2
Plastics manufacturing
Photocurable
VA-061 is the free base of VA-044 and VA-046B, which are water-soluble azo polymerization initiators. By forming salts with different organic acids, the product dissolves in water, creating a highly effective initiator for polymerization of water-soluble vinyl monomers.
- Non-nitrile azo initiator
- Soluble in acidic aqueous solution, potential for aqueous polymerization of non-halogen using organic acid like acetic acid.
- 10 Hour half-life decomposition temperature: 61℃(at about 45℃ in acidic aqueous solution)
![Structural formula of 2,2'-Azobis[2-(2-imidazolin-2-yl)propane]](image/VA-061.png)
| Chemical name | 2,2'-Azobis[2-(2-imidazolin-2-yl)propane] |
|---|---|
| CAS RN® | 20858-12-2 |
| Molecular weight | 250.35 |
| Molecular formula | C12H22N6 |
Physical characteristics
| Color Appearance |
pale yellow crystalline powder |
|---|---|
| Melting point/freezing point | 115-125(dec.) °C |
| 10hour half-life decomposition temperature | 61℃（in methanol） |
| Activation energy | 113.9 kJ/mol |
| Frequency factor (ln A) | 30.16 |
| Solubilities | water : practically insoluble. methanol : soluble. ethanol, chloroform : slightly soluble. toluene : insoluble . |
| SADT | 50℃ |
*SADT: Self-accelerating decomposition temperature
Packaging & Storage conditions
| Packaging | 5kg / 500g |
|---|---|
| Storage conditions | keep under 10℃ |
Related laws and regulations
| TSCA | Listed |
|---|---|
| EINECS | Listed |
| REACH | Not Listed |
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