Grade
Appearance |
Pharmaceutical
fine white crystals |
Technical
fine white crystals |
ACS
fine white crystals |
Assay%≥ | 98.0 | 98.0 | 98.0 |
pH of a 5% solution at 25℃ | 6.7-7.3 | 6.7-7.3 | 6.7-7.3 |
Insoluble Matter%≤ | 0.005 | 0.005 | |
Residue after Ignition%≤ | 0.01 | 0.01 | |
Chloride(CI) ppm≤ | 5 | 50 | 5 |
Nitrate (NO3) %≤ | 0.001 | ||
Sulfate(SO4)%≤ | 0.005 | 0.001 | |
Heavy Metal(as Pb) ppm≤ | 10 | 5 | 5 |
Iron(Fe) ppm≤ | 10 | 10 | 5 |
In 25kg woven paper bags
To be stored in cool,dry and ventilated place
White triangular crystals with a slight odor of acetic acid. It is soluble in water and ethanol, insoluble in acetone, and the aqueous solution is neutral.
It is produced by the reaction of glacial acetic acid and ammonia.