|
|
|
Hebei Zhongshuo Science & Tech Co., LTD.
|
|
| |
|
|
|
|
|
|
 Click to enlarge image
|
 Model Number |
50-81-7 |
Ascorbic Acid, also known as Vitamin C, is a vitamin that human body can not produce on its own. It plays, however, an important role in the metabolism of human body and physiological function regulation and is one of the essential nutrients for the living of humans.
|
Name:
|
Ascorbic Acid
|
|
CAS No.:
|
50-81-7
|
|
Chemical Formula:
|
C6H8O6
|
|
Specification:
|
BP 2000 / USP 24 / FCC IV
|
|
Packing:
|
In 25kg cartons
|
|
Functional use:
|
Antioxidant
|
|
Items
|
Specifications
|
|
Appearance:
|
White crystalline powder
|
|
Identification:
|
Positive reaction
|
|
Melting point:
|
About 190 ºC
|
|
Specific rotation:
|
+20.5 --- +21.5 º
|
|
PH value:
|
2.1 - 2.6
|
|
Clarity of solution:
|
Clear
|
|
Colour of solution:
|
BY7 max
|
|
Heavy metals:
|
10 ppm max
|
|
Copper:
|
5 ppm max
|
|
Iron:
|
2 ppm max
|
|
Assay(on dried basis):
|
99.0 - 100.5%
|
|
Residue on ignition::
|
0.1% max
|
|
Organic volatile impurities :
|
Conforms
|
|
Oxalic Acid:
|
0.2% max
|
|
|
|
|
| |
|
|
|
Related Keywords:
Bookmark / Share this page