PM Proprylene glycol monomethyl ether

Proprylene monomethyl-ether is an odorless, transparent liquid, which is miscible in water. Its relative density is 0.9234.Solvent, dispersant or diluent.

About PM Proprylene Glycol Monomethyl Ether:

Physical state: Propylene glycol monomethyl ether is a colorless transparent liquid with a slight ether-like odor.

Melting point and boiling point: The melting point is -78°C, and the boiling point is 121°C.

Relative density: The relative density is 0.868, similar to water.

Solubility: propylene glycol monomethyl ether has good solubility and can be miscible with water, alcohol, ether, and other solvents.

Viscosity: The viscosity of propylene glycol monomethyl ether is low, and the fluidity is good.

Chemical properties: propylene glycol monomethyl ether has the typical chemical properties of ethers, such as oxidation, esterification and other reactions. At the same time, due to the existence of hydroxyl and ether bonds in its structure, it also has a certain acidity.

Stability: Under normal storage conditions, propylene glycol monomethyl ether is relatively stable. However, decomposition or polymerization may occur under high temperatures, strong acids, or base conditions.

Toxicity: Propylene glycol monomethyl ether irritates the skin and eyes, and inhalation or ingestion may cause discomfort or poisoning. Therefore, attention should be paid to personal protective measures during use.

 Technical Parameters of PM Proprylene Glycol Monomethyl Ether:

Applications of PM Proprylene monomethyl ether：
Coatings and ink industry: propylene glycol monomethyl ether has good solubility and volatility and can be used as a solvent, diluent, and auxiliary agent in the production of coatings and ink. It can dissolve and dilute components such as resins, pigments and additives, adjust the viscosity and rheology of coatings, and improve ink's adhesion and printing effect.

Pharmaceutical industry: propylene glycol monomethyl ether can be used as a solvent, carrier and excipient in the pharmaceutical process to prepare pharmaceutical preparations and drug delivery systems. It contributes to the dissolution, dispersion, and stability of drugs and improves the bioavailability and efficacy of drugs.

Industrial cleaning and degreasing field: propylene glycol monomethyl ether has good solubility and cleaning ability and can be used in industrial cleaning and degreasing fields. It can effectively dissolve and remove grease, stains, and other pollutants, and is suitable for metal, glass, plastic, and other materials cleaning and degreasing treatment.

Synthetic intermediates and other chemical products: propylene glycol monomethyl ether can be used as an intermediate or raw material for the synthesis of other chemical products, such as the production of propylene glycol methyl ether acetate, propylene glycol methyl ether acetate, etc. These compounds are widely used in coatings, inks, adhesives and other fields.

Agriculture: Propylene glycol monomethyl ether can be used as additives for pesticides, growth regulators, and other additives in the agricultural field. It can improve the adhesion and permeability of pesticides, enhance their effect, and promote the growth and development of plants.

Electronics industry: In electronics, propylene glycol monomethyl ether can be used as additives such as cleaning agents and diluents for cleaning and protecting electronic components. It has good volatility and cleaning ability and can effectively remove stains and grease on the surface of electronic components.

Food processing: Propylene glycol monomethyl ether can be used as a food additive or solvent for cleaning, sterilizing, and processing food packaging materials and containers. It has good safety and stability and meets the requirements of food safety standards.

Tobacco industry: In the tobacco industry, propylene glycol monomethyl ether can be used as a flavor solvent and flavor carrier and other components in the production and processing of tobacco products. It can effectively improve the taste and quality of tobacco products.

Production Method of PM Proprylene monomethyl ether：

Alcoholysis method:

Alcoholysis is one of the common methods for producing propylene glycol monomethyl ether. In this method, ethyl alcohol and methyl chloride were used as raw materials to produce methoxy ethanol through an esterification reaction. Then, propylene glycol monomethyl ether was obtained through a hydrolysis reaction. The specific steps are as follows:

A. Esterification reaction: ethanol and methyl chloride are esterified under the action of a catalyst to produce methoxyethanol. This step is a reversible reaction, and the reaction temperature and pressure need to be controlled to make the reaction proceed in the direction of the formation of methoxyethanol.

b. Hydrolysis reaction: methoxyethanol and water are hydrolyzed under a catalyst to produce propylene glycol monomethyl ether. Hydrolysis reaction needs to control the reaction temperature and pressure, and attention must be paid to prevent the occurrence of side reactions.

c. Rectification: the product of the hydrolysis reaction is distilled to separate propylene glycol monomethyl ether. The purpose of Rectification is to remove by-products and impurities and obtain high-purity propylene glycol monomethyl ether.

Ethylene process:

Another method of producing propylene glycol monomethyl ether is the ethylene process. In this process, ethylene and ethylene oxide were used as an addition reaction to form a substitution; ethylene with methyl chloride obtained raw materials, wireline glycol, and propylene glycol monomethyl ether. The specific steps are as follows:

A. Addition reaction: The addition reaction of ethylene and ethylene oxide under the action of a catalyst to produce ethylene glycol. The addition reaction must be carried out under certain temperature and pressure conditions to control the reaction speed and selectivity.

b. Substitution reaction: ethylene glycol and methyl chloride are substituted under a catalyst to produce propylene glycol monomethyl ether. The conditions and selective control of the substitution reaction are similar to that of the addition reaction, but attention should be paid to preventing the occurrence of side reactions.

c. Rectification: Distillation of the product of the substitution reaction to separate propylene glycol monomethyl ether. The purpose of Rectification is to remove by-products and impurities and obtain high-purity propylene glycol monomethyl ether.

Transesterification method:

Transesterification is another feasible method for producing propylene glycol monomethyl ether. The method uses methyl ester and ethanol to produce propylene glycol monomethyl ether by transesterification reaction. The specific steps are as follows:

a. Transesterification reaction: methyl ester and ethanol are transesterification reactions under the action of a catalyst to produce propylene glycol monomethyl ether. Transesterification reaction must be carried out under certain temperature and pressure conditions, and the reaction speed and selectivity are controlled.

b. Rectification: The transesterification reaction product is distilled to separate propylene glycol monomethyl ether. The purpose of Rectification is to remove by-products and impurities and obtain high-purity propylene glycol monomethyl ether.

PM Proprylene Glycol Monomethyl Ether: Packing & Shipping

There are different packings depending on the PM Proprylene monomethyl ether amount.
 PM Proprylene glycol monomethyl ether packing: 1kg/bottle. 25kg/barrel. 200kg/barrel.
 PM Proprylene glycol monomethyl ether shipping: After payment, you can ship your order by air, sea or express.

PM Propylene Glycol Monomethyl Ether Properties    

Inquiry us