Product Name

ASCORBIC ACID

Analysis Standard

BP2011/USD36/FCCVIII/E300

Batch Number

201401010

Quantity

2000KGS

Manufacture Date

JAN.2014

Expiry Date

DEC.2016

Analysis Contents

Analysis Standard

Analysis Results

Description

White or almost White

crystals Crystalline Powder

Pass

Identification

Positive Reaction

Positive Reaction

Melting Point

About 190°C

190.1 °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

Iron

≤2ppm

<2ppm

Oxalic Acid

≤0.2%

<0.2%

Lead

<2mg/kg

<2mg/kg

Arsenic

≤3ppm

<3ppm

ZINC

≤0.25ppm

<0.25ppm

Loss on drying

≤0.1%

<0.1%

Residue on ignition

≤0.1%

<0.1%

Specific Rotation

+20.5°–+21.5°

+21. 22°

Organic Volatile Impurities

Pass

Pass

Assay

99.0% - 100.5%

99.92%