| Item |
Standard(BP2007/EP6.0)
|
Test Result |
| APPEARANCEA |
YELLOW CRYSTALLINE POWDER
|
CONFORMS |
| TLC |
SHOULD APPLIES
|
APPLIES |
| REACTION OF COLOR |
SHOULD APPLIES
|
APPLIES |
| REACTION OF CHLORIDE |
SHOULD APPLIES
|
APPLIES |
| PH |
2.3~2.9
|
2.4 |
| SPECIFCATION ABSORBANCE |
270~290
|
273 |
| LIGHT-ABSORBING IMPURITIES |
430nm A≤0.50
|
0.15 |
|
490nm A≤0.20
|
0.02% | |
|
RELATED SUBSTANCES |
IMPURITY A≤0.5%
|
0.20% |
|
IMPURITY B≤2.0%
|
0.60% | |
|
IMPURITY C≤2.0%
|
0.80% | |
|
IMPURITY D,E,F≤2.0%
|
0.20% | |
|
DISREGARD LIMIT≤0.1%
|
NO DETECTED | |
| HEAVY METALS |
≤0.005%
|
<0.005% |
| SULPHATED ASH |
≤0.5%
|
0.04% |
| WATER |
≤2.0%
|
0.60% |
| RESIDUAL METHANOL |
≤3000PPM
|
1687PPM |
| ASSAY |
95%~102%
|
99.9% |