SYNONYM: ASCORBIC ACID
FORMULA: C6H8O6, [-OCOC(OH):C(OH)C-]HCHOHCH2OH
M. W.: 176
CAS NO.: 50-81-7
GRADE: EP / BP98 / USP23 / DAB
DESCRIPTION:
WHITE CRYSTAL OR CRYSTALLINE POWDER.
SPECIFICATIONS:
|
IDENTIFICATION |
POSITIVE |
|
CLARITY OF
SOLUTION |
CLEAR |
|
COLOR OF
SOLUTION |
BY7MAX |
|
MELTING POINT |
191 – 192℃ |
|
ASSAY |
99.0 – 100.5% |
|
ACIDITY (PH) |
2.2 – 2.5 |
|
RESIDUE ON
IGNITION |
0.1%MAX |
|
SPECIFIC
ROTATION |
+20.5°- +21.5° |
|
HEAVY METALS |
0.0003%MAX |
|
OXALIC ACID |
0.2%MAX |
|
COPPER |
0.0005%MAX |
|
IRON |
0.0002%MAX |
|
ORGANIC
VOLATILE IMPURITIES |
MEETS USP23
STIPULATION |
PACKING: 25KGS/CARBOARD DRUM, 19.50MT/1x20’FCL.