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Ascorbic Acid

Ascorbic Acid

Xi'an Rainbow Bio-Tech Co.,Ltd is one of the leading China ascorbic acid manufacturers, welcome to wholesale cheap ascorbic acid from our factory. 1.Spec.:90%,93%,95%,97% Granular(D.C.) 2.Type: Vitamins, Amino Acids and Coenzymes 3.CAS No.: 50-81-7 4.MF: C6H8O6

Products Details

Xi'an Rainbow Bio-Tech Co.,Ltd is one of the leading China ascorbic acid manufacturers, welcome to wholesale cheap ascorbic acid from our factory.

1.Spec.:90%,93%,95%,97% Granular(D.C.)
2.Type: Vitamins, Amino Acids and Coenzymes 
3.CAS No.: 50-81-7 
4.MF: C6H8O6

Analysis Contents

Analysis Standard

Analysis Results

Identification

Positive Reaction

Positive

Melting Point

About 190°C

190.7°C 

PH

2.4-2.8

2.42

Clarity Of Solution

Clear

Clear

Colour Of Solution

≤BY7

7

Copper

≤5ppm

<5ppm

Heavy Metals

≤10ppm

<10ppm

Mercury

<0.1mg/kg

 

<0.1mg/kg

 

Lead

<2mg/kg

 

<2mg/kg

 

Arsenic

≤3ppm

<3ppm

Cadmium(Cd)

 

<1mg/kg

 

<1mg/kg

 

Oxalic Acid

≤0.2%

<0.2%

Iron

≤2ppm

<2ppm

Loss of Drying

≤0.4%

<0.4%

Sulphate Ash(Residue On Ignition)

≤0.1%

<0.1%

Specific Optical Rotation

+20.5°–+21.5°

+21.13°

Mesh

40-80 Mesh

Pass

Organic Volatile Impurities

Pass

Pass

Assay

99.0%-100.5%

99.94%

 

 

 

                      

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

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