USD $1.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
98.0%min
appearance |
a white crystalline powder |
|
identification |
|
|
a. infrared absorption |
should comply |
|
b.uv absorption |
should comply |
|
c. a solution (1 in 100) responds to the tests for chloride. |
should comply |
|
d.examine by thin-layer chromatography |
should comply |
|
ph |
1.7~2.6 |
|
loss on drying |
not more than 1.5﹪ |
|
residue on ignition |
not more than 0.1﹪ |
|
organic volatile impurities |
should comply |
|
assay |
98.0﹪~101.0﹪ |