Propylene glycol (1,2-propanediol), technically at least 99.5 %
What is propylene glycol used for?
Propylene glycol, also known as 1,2-propanediol, is used in a wide range of applications due to its diverse solvent and emulsifying properties. In addition to water and glycerine, propylene glycol as a component of fog fluids provides the desired dense fog for mostly short-term show effects or to emphasise light beams.
It is widely used in the tobacco industry. Together with glycerine, it is used as a humectant in cigarette and water pipe tobacco. However, 1,2-propanediol is primarily associated with e-cigarettes. Propylene glycol is the main ingredient in the associated e-liquids. The propylene glycol chemiekontor.de in its technical state should not be used for this purpose. On the other hand, the propylene glycol we offer mixed with water is a proven anti-freeze agent. This means that car radiators, stationary cooling systems or aircraft surfaces can be effectively protected against ice formation.
It is also used for the production of brake fluids, heat transfer fluids, alkyd and polyester resins or as a solvent for greases, oils, waxes, resins and dyes, as well as for the production of polypropylene glycols, provided the given purity is required.
What properties does the product have?
Technical propylene glycol is a colourless and odourless liquid at room temperature, which is also known under the chemical name propane-1,2-diol. Depending on the concentration, its melting point is between -59 and -1.5 °C, its boiling point is 184 - 189 °C and its flash point is 99 °C. The compound therefore only forms flammable vapour-air mixtures above this temperature.
It should be noted that the substance has an auto-ignition temperature of over 400 °C and a decomposition temperature of over 200 °C. Propylene glycol has a density of 1.035 - 1.04 g/m3 and is completely soluble in water. It is also miscible with ethanol, but not with fatty oils.
How is 1,2-propanediol produced?
Propylene glycol is generally produced industrially by hydrolysis of propylene oxide. Manufacturers use two different processes for this. Some use a high-temperature process without catalysis at 200 - 220 °C, others use a catalytic process at 150 - 180 °C in the presence of an internal exchange resin or small amounts of sulphuric acid or alkalis.
The end product of both processes contains 20 % 1,2-propanediol, which is purified by rectidication, 1.5 % dipropylene glycol and smaller quantities of other polypropylene glycols. It is also possible to produce 1,2-propanediol from glycerol, which is a by-product of biodiesel production.
Propylene glycol (1,2-propanediol), technically at least 99.5 % (1030 kg)
For chemical-technical applications. Application 1,2-mono propylene glycol or 1,2-propanediol is a water-clear, colourless and almost odourless polyhydric alcohol. It is highly water-absorbent and is often used, due to its dissolving and emulsifying properties, as a carrier substance or as a solvent for colourings, flavourings, emulsifiers and for dissolving enzymes. 1,2-mono-mono-propylene glycol is authorised in the European Union as a food additive as E1520, among other things, for food supplements. In the technical field, 1,2-mono propylene glycol in water-substance mixtures serves as an antifreeze and as a coolant. Propylene glycol can substitute glycerine in various manufacturing processes and vice versa. Due to its antimicrobial effect, additional preservatives can often be dispensed with when using 1,2-mono propylene glycol. 1,2-propylene glycol, like ethylene glycol, is particularly suitable as a heat transfer medium in solar thermal applications. As a rule, it is used there as a mixture in the desired concentration for
Propylene glycol (1,2-propanediol), technically at least 99.5 % (20.6 kg)
For chemical-technical applications. Application 1,2-mono propylene glycol or 1,2-propanediol is a water-clear, colourless and almost odourless polyhydric alcohol. It is highly water-absorbent and is often used, due to its dissolving and emulsifying properties, as a carrier substance or as a solvent for colourings, flavourings, emulsifiers and for dissolving enzymes. 1,2-mono-mono-propylene glycol is authorised in the European Union as a food additive as E1520, among other things, for food supplements. In the technical field, 1,2-mono propylene glycol in water-substance mixtures serves as an antifreeze and as a coolant. Propylene glycol can substitute glycerine in various manufacturing processes and vice versa. Due to its antimicrobial effect, additional preservatives can often be dispensed with when using 1,2-mono propylene glycol. 1,2-propylene glycol, like ethylene glycol, is particularly suitable as a heat transfer medium in solar thermal applications. As a rule, it is used there as a mixture in the desired concentration for
Propylene glycol (1,2-propanediol), technically at least 99.5 % (206 kg)
For chemical-technical applications. Application 1,2-mono propylene glycol or 1,2-propanediol is a water-clear, colourless and almost odourless polyhydric alcohol. It is highly water-absorbent and is often used, due to its dissolving and emulsifying properties, as a carrier substance or as a solvent for colourings, flavourings, emulsifiers and for dissolving enzymes. 1,2-mono-mono-propylene glycol is authorised in the European Union as a food additive as E1520, among other things, for food supplements. In the technical field, 1,2-mono propylene glycol in water-substance mixtures serves as an antifreeze and as a coolant. Propylene glycol can substitute glycerine in various manufacturing processes and vice versa. Due to its antimicrobial effect, additional preservatives can often be dispensed with when using 1,2-mono propylene glycol. 1,2-propylene glycol, like ethylene glycol, is particularly suitable as a heat transfer medium in solar thermal applications. As a rule, it is used there as a mixture in the desired concentration for
Propylene glycol (1,2-propanediol), technically at least 99.5 % (5.15 kg)
For chemical-technical applications. Application 1,2-mono propylene glycol or 1,2-propanediol is a clear, colourless and almost odourless polyhydric alcohol. It is highly water-absorbent and is often used as a carrier or solvent for dyes, flavourings, emulsifiers and for dissolving enzymes due to its dissolving and emulsifying properties. In technical applications, 1,2-mono propylene glycol is used in a water-substance mixture as antifreeze and as a coolant. Propylene glycol can substitute glycerine in various manufacturing processes and vice versa. Due to its antimicrobial effect, additional preservatives can often be dispensed with when using 1,2-mono propylene glycol. Like ethylene glycol, 1,2-propylene glycol is particularly suitable as a heat transfer medium in solar thermal applications. As a rule, it is used there as a mixture in the desired concentration to
Buying propylene glycol - the most frequently asked questions:
At chemiekontor.de, propylene glycol is offered in 5-liter canisters (5.15 kg) and 20-liter canisters (20.6 kg). For higher demand, 200-liter steel drums (206 kg), as well as disposable IBCs with a volume of 1000 liters (1030 kg) are also available.
In the online store of chemiekontor.de 1,2-propanediol is available from 4,66 € per kg (starting price refers to the purchase of an IBC container of 1030 kg).
Propylene Glycol is usually in stock ready for shipment, the delivery time is 3 - 5 working days.
Propylene glycol, or 1,2-propanediol, is not a hazardous substance, which is why there are no safety instructions to follow and no hazard labeling is required.
The CAS number for the technical propylene glycol offered here is 57-55-6.
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