Propylene glycol for use

Propylene glycol, chemically known as 1, 2-propylene glycol, is a versatile organic compound with the following properties and uses
0, 1Physical property
Propylene glycol is a colorless, clear, viscous liquid with a slight sweet taste. It has strong hygroscopicity and can absorb moisture from the air. The boiling point is about 188.2°C and the melting point is -59°C. Can be mixed with water, ethanol and a variety of organic solvents.
0, 2Chemical property
The molecule contains two hydroxyl groups (-OH), which makes it have good solubility and reactivity. It can react with dibasic acid to form polyester, react with nitric acid to form nitric ester, and react with hydrochloric acid to form chlorinated alcohol. At high temperatures it can be oxidized to form propionaldehyde, lactic acid, pyruvate and acetic acid. Relatively stable to heat and light, but more stable at low temperatures.

0, 3use
1. Cosmetics and skincare products:
As a moisturizer, propylene glycol can help retain moisture in the skin and reduce dryness. Used as a penetrant to help other active ingredients be better absorbed by the skin. Commonly found in facial masks, toners, cleansers, serums and moisturizing lotions.
2. 제약 산업:
As a carrier of drugs, improve the stability and bioavailability of drugs. In the pharmaceutical process, as a solvent, softener and plasticizer.
3. Food Industry:
Propylene glycol fatty acid ester produced by the reaction of propylene glycol with fatty acid can be used as food emulsifier.
4. Other industrial uses:
The main ingredient of advanced antifreeze, because it can significantly reduce the freezing point of water.
Used as wetting agents and solvents, especially in the coatings, printing inks and paint industries.
Can be used as solvent for cleaning agent and degreaser.
Used in tobacco products as a humidifier and flavor carrier.
In electronic cigarette liquid as a solvent and atomizer.
Although propylene glycol is safe in many applications, it can cause skin irritation or allergic reactions in some people, so individual sensitivities need to be noted when used. In cosmetics and pharmaceuticals, the concentration used is usually strictly controlled to ensure safety.