Bisphenol A
 Bisphenol A is synthesized by phenol and acetone in acidic medium. It is important material for ethoxyline resin, polycarbonate, polysulfone, aromatic polyester, phenolic resin,unsaturated polyeser resin, fire retardant and so on.
Bisphenol A can be divided into two grades: carbon polymer grade and epoxy grade.
Quality Index:
Index Name |
Carbon polymer grade |
Epoxy grade |
Appearance |
Powdery, flaky or granular white crystals |
Crystallization temperature ºC |
≥156 |
≤154 |
Chroma (Pt-Co)
(25g sample dissolved in 35ml methanol) |
≤25 |
≤50 |
Iron ppm |
≤1 |
≤2 |
Free phenol % |
≤0.03 |
≤0.1 |
Water content % |
≤0.2 |
≤0.3 |
Ash % |
≤0.01 |
- |
Isomer % |
≤0.2 |
≤0.5 |
|
