2,3,4-Trihydroxybenzophenone
Specification
| Appearance | Yellow to light yellow crystalline powder |
| Purity | 99.5%min |
| Melting Point (Deg C ) | 139-140 |
| Moisture | 0.5%max |
| Fe | 100ppb max |
| Pb | 100ppb max |
| Na | 100ppb max |
| K | 100ppb max |
| Ca | 100ppb max |
| Mg | 100ppb max |
| Zn | 100ppb max |
| Cu | 100ppb max |
| Chloride | 100ppb max |
| Bromide | 100ppb max |
Package:25kg per Drum
Applications:BP-20 is a UV absorber of the hydroxyphenyl Benzophenone class which imparts Outstanding light stability to paintings and suntan oil, used for photosensitive glue for PS plate and photoresist.especially suitable for cosmetic additives, also could absorb UVA, UVB etc.