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specification
PORT:XINGANG, CHINA
| Application | It used in production of unsaturated polyester resin ,pharmaceutics |
| Appearance | WHITE BRIQUETTE/FLAKE |
| Purity | 99.5% MIN |
| MF | C4H2O3 |
| EINECS No. | 203-571-6 |
| Place of Origin | Hebei, China (Mainland) |
specification
|
Item
|
Extra Grade
|
Measured Value
|
|
Apperance
|
light yellow powder
|
|
|
Purity%≥
|
98.5
|
98.56
|
|
1.2ACID%≤
|
0.2
|
0.2
|
|
Beta-naphthol content%≥
|
0.5
|
0.51
|
|
Water content%≤
|
0.3
|
0.28
|
|
First melting point°C≥
|
217
|
217
|
| Insolubles in NaOH%≤ | 0.2 | 0.19 |
|
Ash%≤
|
0.5
|
0.48
|
PORT:XINGANG, CHINA