Description
Glycerine is widely used in chemistry, paint industry, texitile and dyeing, and foods, as hygroscopic agent and sugar substitute.Crude Glycerine 80% is generated from Oleochemicals factory, light brown colour, 80% min.A dark brown viscous liquid derived from trans-esterification of crude palm oil.
| Index | Standard | |||
| Type | Super grade | Top grade | First grade | Second grade |
| Chroma | ≤20 | ≤20 | ≤30 | ≤70 |
| Assay | ≥ 99.5 % | ≥ 98.5 % | ≥ 98 % | ≥ 95 % |
| Density (20°C ) | ≥1.2598 g/ml | ≥ 1.2572g/ml | ≥ 1.2559g/ml | ≥1.2481 g/ml |
| Chloride | ≤ 0.001% | ≤ 0.001% | ≤ 0.01% | ≤0.05 % |
| Sulfating Ash | ≤0.01% | ≤0.01% | ≤0.01% | ≤0.01% |
| Acidity or Alkalinity | ≤0.064mmol/100g | ≤0.064mmol/100g | ≤0.1mmol/100g | ≤0.3mmol/100g |
| Saponification equivalent | ≤0.64mmol/100g | ≤0.64mmol/100g | ≤1mmol/100g | ≤3mmol/100g |
| Heavy metals (as Pb) | ≤5mg/kg | ≤5mg/kg | ≤5mg/kg | ≤5mg/kg |
| As | ≤2mg/kg | ≤2mg/kg | ≤2mg/kg | ———— |
Glycerine Applications :
(1) Food industry :
(2) Pharmaceutical and personal care applications
Glycerol is used in medical and pharmaceutical and personal care preparations, mainly as a means of improving smoothness, providing lubrication and as a humectant
(3 )Surface science :
Glycerol is shown to reduce the coefficient of friction of polymer coated surfaces by several orders of magnitude. This effect is attributed to the enhanced viscosity of glycerol-water solutions as compared to the pure water
(4) Botanical extracts :
When utilized in ‘tincture’ method extractions, specifically as a 10% solution, glycerol prevents tannins from precipitating in ethanol extracts of plants (tinctures). It is also used as a substitute for ethanol as a solvent in preparing herbal extractions
(5) Antifreeze:
Glycerol was historically used as an anti-freeze for automotive applications before being replaced by ethylene glycol, which has a lower freezing point. While the minimum freezing point of a glycerol-water mixture is higher than an ethylene-glycol mixture, glycerol is not toxic and is being re-examined for use in automotive applications
(6) Chemical intermediate:
Glycerol is used to produce nitroglycerin, or glycerol-trinitrate .Reliance on soap-making to supply co-product glycerine made it difficult to increase production to meet wartime demand.
(7) Fuel:
glycerol can be used as an alternative to diesel
