2-(2’-Hydroxy-3’,5’-di-t-butylphenyl)-5-chlorobenzotriazole;
2,4-di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol
PowerSorb™ 327 is a strong absorber of ultraviolet radiation and has a high degree of photostability - photochemical energy absorbed in the ultraviolet region is dissipated as thermal energy.
Synonyms | Tinuvin 327, Uvinul 3027, Songsorb 3270, Cyasorb UV-5357, Lowilite 27, Eversorb 75, Chiguard 327, EVERSTAB 327. |
CAS Number | 3864-99-1 |
EINECS Number | 223-383-8 |
Chemical Structure | |
Chemical Formula | C20H24N3OCl |
Molecular Weight | 358 |
Packing | PowerSorb™ 327 is supplied in 25Kg Carton Box or 50Kg Fiber Drum. |
Note | All information in the leaflet is based on our present knowledge and experience. We reserve the right to make any changes according to technological progress or further developments. Performance of the product described herein should be verified by testing. We specifically disclaim any other express or implied warranty of fitness for a particular purpose or merchantability. We disclaim liability for any incidental or consequential damages. |
PowerSorb™ 327 is particularly suitable for polypropylene and polyethylene as well as cold cured polyesters, polyurethanes, dyes, and pigments.
PowerSorb™ 327 can be used in combination with phenolic & phosphite antioxidants, and HALS to optimize performance in outdoor use.
PowerSorb™ 327 exhibits good initial color, low volatility, excellent stability to heat and light, superior wash fastness, and resistance to gas fading.
PowerSorb™ 327 almost does not absorb visible light, particularly applicable to colorless and light-colored products.
Appearance | Pale yellow powder |
Specific Gravity (25°C, g/cm3) | 1.26 |
Vapor Pressure (20°C, Pa) | 8.2E-9 |
Melting Point (°C) | 154-158 |
Flash Point (°C) | 454 |
Volatile Loss (%) | Max.0.5 |
Color of solution (460nm, %) | Min.95 |
Color of solution (500nm, %) | Min.97 |
Ash (%) | Max.0.1 |
Purity (%) | Min.99 |
Solubility [20°C] | % w/w |
Xylene | 15 |
n-Butyl acetate | 7 |
Ethanol | 0.3 |
Ethyl acetate | 6 |
n-Hexane | 3 |
Styrene | 14 |
Methyl methacrylate | 14 |
Dioctyl phthalate | 3 |
Methyl ethyl ketone | 4 |
Toluene | 16 |
Mineral spirits | 5 |
Water | <0.01 |