Glycerol 98% Extrapure
Confirming to IP
1,2,3-Propanetriol; Glycerol
Product Code. |
01291 |
Grade |
Extrapure |
Purity |
98% |
CAS No. |
56-81-5 |
Molecular Formula |
C3H8O3 |
Molecular Weight |
92.09 |
H.S.Code |
2905.45000 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Liquid |
Colour |
Clear colorless |
Odour |
Odorless |
| pH value |
5.5 - 8 |
Melting point/ Freezing point [°C] |
20 °C |
Auto-ignition temperature [°C] |
370°C |
| Flash point [°C] |
160 °C |
Boiling point [°C] |
182 °C |
Vapour pressure mm/Hg |
0.0033 mm Hg at 50 °C |
| Vapour density |
3.18 |
Density [g/cm3] |
1.25 |
Solubility in water [% weight] |
Soluble in water |
| Explosion limits -lower [%] |
0.90% |
Packaging
Specification
| Appearance | A clear, colourless or almost colourless, odourless; very hygroscopic,syrupy liquid |
| Assay | 98.0 - 101.0% |
| Identification as per IP | To comply |
| Clarity (50% w/v in distilled water) | Clear |
| Color (10 ml of 50% w/v solution diluted to 25 ml) | Colorless |
| Refractive index (20°C; 589 nm) | 1.470 - 1.475 |
| Acidity | Max 0.2 ml of 0.1 N NaOH required for 50 ml of 50% w/v solution |
| Alkalinity | NIL |
| Heavy metal (as Pb) | Max 0.0005% |
| Iron (Fe) | Max 0.0004% |
| Chloride (Cl) | Max 0.0025% |
| Sulphate (SO4) | Max 0.003% |
| Aldehyde and reducing substance | To Pass IP test |
| Ester | Min 8.0 ml of 0.1M HCl required to decolorise the 50 ml of 50% w/v solution of glycerin in water |
| Sugar | To pass IP test |
| Sulphated ash | Max 0.01% |
| Water (H2O) | Max 2% |
Safety Information and Hazard Symbols