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ASCORBIC ACID CRYSTALLINE POWDER - DFI-743011

Published:03/11/2017

Description

AppearanceWhite crystalline powder
CAS No.50-81-7
BTN29 36 27 00 000
Shelf life36 Months from production date
FormulaC6H8O6

Specification

Assay99 to 100.5%
ColourClear = < BY7
IdentificationPositive reaction
pH(2% solution)2.4 to 2.8
Heavy metals Max:10ppm
Cadmium Max:1mg/kg
Sulphated ash Max:0.1%
Arsenic Max:3ppm
Loss on drying Max:0.4%
Melting pointAbout 190°C
Residual solventsPass
Lead Max:2ppm
Iron Content Max:2ppm
Oxalic Acid Max:0.2%
Specific Optical Rotation+20.5° + 21.5°
Mesh Size40 to 80 mesh
Mercury Max:1ppm
Copper Max:5ppm
Packaging25 Kg Cartons
Country of originChina
pH(5% solution)2.1 to 2.6
Impurity C Max:0.15%
Impurity D Max:0.15%
Unspecified Impurity Max:0.1%
Total Impurities Max:0.2%
Impurity E Max:0.2%

Microbiological

Total plate count Max:100cfu/g
Total yeasts and moulds Max:100cfu/g
Staphylococcus aureusNegative
Pseudomonas aeruginosaNegative
SalmonellaNegative
Escherichia ColiNegative

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