content [CD--1] % | 99.0-102 |
appearance | white or pink crystal |
5%water solution appearance | colorless clear |
volatile matter % | ≤0.5 |
PH range | 2.0-2.2 |
melting point ºC | 182-187 |
ash content % | ≤0.1 |
heavy metal % | ≤0.001 |
Photographic properties | qualified |