Ascorbic Acid CAS 50-81-7

Ascorbic Acid CAS 50-81-7

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Product Details

 

Product name:
Ascorbic Acid (Vitamin C)
Molecular Formula:
C6H8O6
Molecular Structure: 
mtxx392
Molecular Weight:
176.12
CAS No.: 
50-81-7


Description

Ascorbic Acid occurs as white or slightly yellow crystals or as powder. It melts at about 190°. It gradually darkens on exposure to light, is reasonably stable in air when dry, but rapidly deteriorates in solution in the presence of air.

 

Application

Pharmaceutical use; antioxidant; meat-curing aid; nutrient.

 

Specification

Appearance
White or almost white crystals or crystalline powder
Identification
Positive Reaction
Melting Point
About 190℃
PH
2.1 ~ 2.6
Clarity Of Solution
Clear
Colour Of Solution
≤ BY7
Copper 
≤ 5ppm
Iron
≤ 2ppm
Arsenic
≤ 3ppm
Mercury
≤ 0.1mg/kg/
Lead 
≤ 2mg/kg/
Heavy Metals
≤10ppm
Residue On Ignition 
≤0.1%
Specific Optical Rotation
+20.5°– +21.5°
Oxalic Acid
≤0.2%
Impurity E 
≤0.2%
Loss of Drying
≤0.4%
Residue On Ignition
≤0.1%
Specific Optical Rotation
+20.5°–+21.5°
Residual Solvents
Meets the requirements.
Assay
 99.0%-100.5%


Packing  

25kg /carton or as per requirement.

 

Storage

Store in a cool, dry place, protected from light.

 

Minimum Order

100kgs

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