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Ascorbic Acid

Inquiry
  Post Date: Mar 06,2013
  Expiry Date: Mar 20,2013
  Detailed Description: Cas No. :50-81-7 Quantity: 1000Metric Tons
Specs:White or almost White crystals Crystalline Po
Payment Method: T/T L/C D/P

Analysis Contents

Analysis Standard

Analysis Results

Characteristics

White or almost White crystals Crystalline Powder

Pass

Identification

Positive Reaction

Positive

Melting Point

About 190℃

190.6℃

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°

+20.85°

Mesh

40-80 Mesh

Pass

Organic Volatile Impurities

Pass

Pass

Assay

99.0%-100.5%

99.79%

  CAS Registry Number:

50-81-7
  Synonyms: ;L-Ascorbic Acid, Free Acid;Vitamin C;L-(+)-Ascorbic acid;VC;ascorbic acid;Vita C BP2005;Vitamine C;L-threo-hex-1-enofuranos-3-ulose;(5R)-5-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxyfuran-2(5H)-one (non-preferred name);5-(1,2-dihydroxyethyl)-3,4-dihydroxyfuran-2(5H)-one (non-preferred name);Vit.C;Ascorbic Acid(VC);L-Ascorbic Acid;Ascorbate Acid;COATED ASCORBIC ACID;
  Molecular Formula: C6H8O6
  Molecular Weight: 176.1241
  Molecular Structure: 50-81-7 L(+)-Ascorbic acid
  Safety Description: S24/25:;

  Company: Zibo Wellink International Co., Ltd.     [ China ]          
  Contact: Miss zhao
  Tel: +86-533-6121888
  Fax: +86-533-6121456
  Email: sales@wellinki.com
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