Properties
3-chlorophthalic Anhydride,
4-chlorophthalic Anhydride is colorless or light yellow flaky
solid , Melting point 124°C, 98°C, boiling point 313°C,
294-295°C
Technical index
Item |
3-chlorophthalic Anhydride |
4-chlorophthalic Anhydride |
Appearance |
First grade |
Premium grade |
First grade |
Premium grade |
white or yellowish
powdery or crystalline powder |
white or yellowish
powdery or crystalline powder |
Melting point(°C) |
122-125 |
88-92 |
Acidity(KOHmg/g) |
600-610 |
616-617 |
Purity(%≥) |
95 |
98 |
95
|
98 |
Light component |
1.5 |
1.0 |
Heavy component |
0.5 |
1.0 |
Application
used in aviation, spaceflight,
micro-electronics and atomic energy industry