Diethylene glycol(DEG)
- CAS No.: 111-46-6
- Appearance: Colorless liquid
Product Specification:
| ITEMS | SPECIFICATION |
|---|---|
| Colour pt-co | ≤15 |
| DENSITY AT 20℃ | 1.1155-1.1176 |
| MOISTURE: | ≤0.1 % |
| Boiling range IBP ℃ | ≥242 |
| Boiling range DP ℃ | ≤250 |
| TEG | ≤0.2 % |
| MEG | ≤0.15 % |
| DEG | ≥99 .5% |
| MOISTURE: | ≤0.1 % |
| ACID | ≤100 MG/KG |
| Iron | ≤0.5 MG/KG |
Diethylene glycol (also known as DEG, 2,2-oxydiethanol and diglycol) is a clear, colourless, odourless liquid with the formula C4H10O3. It is soluble both in water and in many organic compounds and has hygroscopic properties which makes it a useful industrial chemical.
What is Diethylene Glycol ( DEG ) used for ?
Diethylene glycol (DEG) is a commonly used solvent and ingredient in numerous commercial products. It is used as a dehydrating agent for natural gas processing; as a lubricating and finishing agent for textiles; a constituent in brake fluids, *lubricants*****, antifreeze formulations, wallpaper strippers and in artificial fog solutions; a solvent for printing inks and textile dyes; and is used as an intermediate in the production of some resins, *triethylene glycol*****, surfactants and diethylene glycol esters and ethers.
Triethylene glycol ( TEG )
- CAS No.: 112-27-6
- Appearance: liquid
Product Specification:
| ITEMS | SPECIFICATION |
|---|---|
| PURITY ( w/w ) | ≥99 % |
| MOISTURE | ≤0.1 % |
| ASH | ≤0.1 % |
| ACID | ≤0.1% |
| Distillation Range | 278-300℃ |
| DENSITY AT 20℃ | 1.123-1.126 |
Triethylene glycol (also known as TEG, triglycol and trigen) is a colourless, viscous, non-volatile liquid with the formula C6H14O4. It is well known for its hygroscopic quality and its ability to dehumidify fluids.
What is Triethylene Glycol used for?
—–Oil & Gas Industry
The main uses for tri ethylene glycol are based upon its hygroscopic quality. This means that it can absorb moisture from the air through absorption or adsorption. It is used as a dehydrating agent for natural gas pipelines where it removes the water from the gas before being condensed. The triethylene glycol can then be continually reused, although the by-product of benzene needs to be disposed of carefully. This process is useful as it prevents the gas from freezing making the gas easier to transport and manage for end consumers.
—–Mild Disinfectant
Triethylene glycol can also be used as a mild disinfectant. Due to its low toxicity, antimicrobial properties, and low odour, it is commonly used for air disinfection in occupied areas where more aggressive disinfectants cannot be used. Due to these disinfectant properties and the dehydrating properties, it is an ideal dehumidifying agent in air-conditioning units.
PROPYLENE GLYCOL USP GRADE ( PG or MPG )
- CAS No.: 57-55-6
- EINECS: 200-338-0
Product Specification:
| ITEMS | SPECIFICATION |
|---|---|
| Colour pt-co | ≤10 |
| Content | ≥99.80% |
| Residue on ignition, mg | ≤2.5 |
| chloride | ≤0.007% |
| sulphate | ≤0.006% |
| Heavy metals ( as Pb ) | ≤5 ppm |
| Specific gravity ( 20/20 ) | 1.035-1.037 |
| acidity | ≤0.2% |
| moisture | ≤0.1 % |
| Distillation range ℃ | 184-189 |
| Iron | ≤2 ppm |
Monopropylene Glycol (also known as Propylene Glycol, PG, Propan1, 2diol and MPG) is a clear, colourless and viscous liquid with a characteristic odour and has the formula C3H8O2. This solvent is soluble in water and holds hygroscopic properties, meaning it can attract hard water molecules.
It is used across a wide range of industries as it has low toxicity, coupled with a freezing point which is depressed upon mixing with water.
What is Monopropylene Glycol ( MPG or PG ) Used for ?
There are many uses for mono propylene glycol across many different industries and some chemical manufacturers produce two grades of MPG to meet these varied needs.
—–Consumer uses
The first grade is used in the food industry for food colourings and flavourings and is also a classified humectant food additive (E1520). There are also many applications in the cosmetics industry that use this solvent, specifically personal care products including shampoos, bubble baths, baby wipes and as a moisturiser in make-up.
——Industry uses
The second is industrial grade MPG which has a variety of uses but the main application is as an antifreeze and aircraft wing and runway de-icer which is because its freezing point lowers upon mixing with water. It is also used in heat transfer liquids such as engine coolants.
Monopropylene Glycol is additionally used in the pharmaceutical industry, examples include as a chemical intermediate in the production of high-performance unsaturated polyester resins used in paints and varnishes and as an excellent solvent utilised in printing inks.
It is also used in the manufacturing of non-ionic detergents which are used in the petroleum, sugar-refining, and papermaking industries, the cryonics industry and as an additive in pipe tobacco, preventing dehydration
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