| Chemical name | 2-(2 '-hydroxy-5' -methylphenyl)benzotriazole |
| Molecular formula | C13H11N3O |
| Molecular weight | 225.3 |
| CAS NO. | 2440-22-4 |
| Appearance | white to light yellow crystalline powder |
| Content | ≥ 99% |
| Melting point | 128-130℃ |
| Loss on drying | ≤ 0.5% |
| Ash | ≤ 0.1% |
light transmittance:
|
Wavelength nm |
Light transmittance% |
|
440 |
≥ 97 |
|
500 |
≥ 98 |
Toxicity: low toxicity, oral LD50>5g/Kg body weight in rats.
Use: as an ultraviolet absorbent, this product is mainly suitable for polyester, epoxy cellulose acetate, polyvinyl chloride, polystyrene, acrylic glass, polyacrylonitrile resin, etc. The maximum absorption wavelength range is 270-380nm.
General dosage: 0.1-0.5% for thin products, 0.05-0.2% for thick products.
Solubility: 25℃
|
Dissolvant |
Solubility |
Dissolvant |
Solubility |
|
acetone |
2.5 |
dioctyl phthalate |
2.5 |
|
alcohol |
0.3 |
dioctyl sebacate |
2.4 |
|
carbinol |
0.2 |
Ethanol, both types |
3.9 |
|
carbitol |
2.6 |
methyl methacrylate |
5.0 |
|
acetic ether |
3.5 |
styrene |
7.2 |
|
butyl acetate |
3.0 |
Lindol |
3.3 |
|
benzene |
6.9 |
petroleum naphtha |
0.9 |
|
methylbenzene |
6.0 |
skellysolve |
1.5 |
|
cyclohexane |
0.7 |
water |
0 |
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