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Vitamin C -white powder

Vitamin C -white powder

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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

<BY7

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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Vitamin C -white powder

      

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