Propyleneglycol Monoethyl Ether CAS 1569-02-4

In view of the low toxicity and excellent solvent properties of propylene glycol ether compounds, their research and development applications are becoming increasingly widespread. The main applications are as follows.

Cleaners

Cleaners should be able to wet and penetrate dust, lift it from the surface to be cleaned, so that it can be wiped or washed off; they should also be able to remove water-insoluble grease. The hydroxyl group of propylene glycol ether, including propylene glycol ethyl ether, can act on water-soluble dust, and the ether group can dissolve grease and water-insoluble dust, so it is widely used as a household and industrial cleaner. Such as glass cleaner, carpet cleaner, liquid soap, metal cleaner, paint and ink cleaner, stove cleaner, tire cleaner, etc.  

Solvents

Propylene glycol ether, including propylene glycol ethyl ether, as an excellent industrial solvent, is widely used in coatings, dyes, printing, inks, hydraulic oils, antifreeze, lubricants and other fields.

1. Ink and dye solvent: Propylene glycol ether can dissolve the resin used in coatings. It is also an excellent solvent for dyes and inks due to its unique solubility and high penetration, low evaporation rate and low surface tension.
2. Solvent for printing pastes and dyes for textiles: Many printing pastes are based on cellulose derivatives of alkyd resins. Propylene glycol ether can be used in the formula to control the evaporation rate, help penetration and dyeing uniformity, increase the solubility of textile dyes, and increase color.
3. Leather dyeing solvent: The formula for leather dyeing is composed of dyes or pigments, carriers (casein or nitrocellulose) and a solvent. The leather must first be treated with a carrier as a base material for color retention. If the dyeing is based on casein, the dyed leather will have a layer of nitrocellulose coating as the final protective layer. The application of propylene glycol ether helps to even out the color, penetrate and control the evaporation rate.
4. Printing and writing inks: Propylene glycol ether can be added to printing and writing inks to improve penetration. The slow evaporation rate of propylene glycol ether can make the dye evenly distributed on the printed letters and prevent the dried ink from accumulating on the printing press. Propylene glycol ether can also be used in ballpoint pen refill oil to allow the resin, pigment, dye, etc. in the refill oil to flow freely without clogging or drying up.
5. Cosmetics: Propylene glycol methyl ether and dipropylene glycol methyl ether are used in the formulation of cosmetics to prevent one of the ingredients from precipitating from the formula and maintain the transparency of cosmetics at low temperatures. Propylene glycol methyl ether can also be used as a solvent for colorless nail polish or a nail polish remover.
6. Solvents for agricultural chemicals: Agricultural pesticides are generally insoluble in water and require the addition of surfactants. Propylene glycol ethyl ether has some of the same properties as surfactants. It has a synergistic effect on surfactants, helps dissolve pesticides, and combines with water. Surfactants and pesticides are often solids. Adding propylene glycol methyl ether or dipropylene glycol methyl ether can make them liquid and easy to dilute with water. Propylene glycol ether mixed with pesticides can reduce the volatility of the product and reduce the volatility loss of pesticides. In addition, propylene glycol ether can also be used as an adhesive tape remover, a remover for coatings, paints, silicone coatings and inks.

Organic Synthesis Intermediates and Raw Materials

Propylene glycol ether is an important raw material for the synthesis of organic intermediates and fine chemical products.