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Glycerine 99.5% AR Specification |
|
Synonyms |
Glycerol |
|
Description |
White to yellow crystalline powder |
|
Assay (on anhydrous basis) |
Min.99.5% |
|
Chloride (Cl) |
Max. 0.001% |
|
Moisture |
Max. 0.5% |
|
Purity |
Min. 99.5% |
|
Individual impurities |
Max. 0.1% |
|
Solubility in water (% weight) |
Soluble in water |
|
color |
To pass USP test |
|
Fatty acid and esters |
Max. 1.0ml of 0.5N NaOH consumed |
|
Sulphate (SO4) |
Max. 0.002% |
|
Chlorine compound |
Max. 0.003% |
|
Residue on ignition |
Max. 0.01% |
|
Specific Gravity at 25°C |
Min 1.249 |
|
Total impurities |
Max 1% |
|
Individual impurities |
Max 0.1% |
|
Melting point/Freezing point (° C) |
20° C |
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Glycerine 98% Extra Pure - Specification |
|
Synonyms |
Glycerol |
|
Description |
A clear, colourless or almost colourless, odourless; very hydroscopic, syrupy liquid |
|
Assay |
98.0 – 101.0% |
|
Clarity (50% w/v in distilled water) |
Clear |
|
Heavy metals (as Pb) |
Max. 0.0005% |
|
Aldehyde and reducing substance |
To pass IP test |
|
Purity |
98.0 – 101.0% |
|
Solubility in water (% weight) |
Soluble in water |
|
Colour (10ml of 50% w/v solution diluted to 25ml) |
Colorless |
|
Refractive index |
1.470-1.475 |
|
Acidity |
Max. 0.2 ml of 0.1N NaOH required for 50ml of 50% w/vsolution |
|
Alkalinity |
Nil |
|
Iron (Fe) |
Max. 0.0004% |
|
Chloride (Cl) |
Max. 0.0025% |
|
Sulphate (SO4) |
Max. 0.0030% |
|
Aldehyde and reducing substance |
Passes test |
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