31885-97-9

Basic information

• Product Name: Polyethylene glycol dibutyl ether
• Synonyms: Polyethylene glycol dibutyl ether;.alpha.-butyl-.omega.-butoxy-poly(oxy-2-ethanediyl);alpha.-butyl-.omega.-butoxy-poly(oxy-2-ethanediyl);α-Butyl-ω-butoxypoly(oxy-1,2-ethanediyl)
• CAS NO: 31885-97-9
• Molecular Formula: (C2H4O)nC8H18O
• Molecular Weight: 0
• Mol File: 31885-97-9.mol
• Article Data: 14

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Polyethylene glycol dibutyl ether(CAS DataBase Reference)
• NIST Chemistry Reference: Polyethylene glycol dibutyl ether(31885-97-9)
• EPA Substance Registry System: Polyethylene glycol dibutyl ether(31885-97-9)

Safety Data

• Hazardous Substances Data: 31885-97-9(Hazardous Substances Data)

Usage

General Description

Polyethylene glycol dibutyl ether, also known as PEG-4 Dibutyl Ether, is a chemical compound that is commonly used as a solvent in various industrial and consumer products. It is a type of polyethylene glycol ether, which is a group of compounds that are often used as surfactants, solvents, and emulsifiers. PEG-4 Dibutyl Ether is known for its low volatility and high solubility, making it an effective solvent for many different substances. It is used in a wide range of applications, including inks, paints, coatings, and adhesives, as well as in personal care and pharmaceutical products. This chemical is considered to have low toxicity and low environmental impact, and it is generally regarded as safe for use in these applications.

Upstream product

• 2351-69-1 1-(chloromethoxy)butane 
• 109-99-9 tetrahydrofuran 
• 109-65-9 1-bromo-butane 
• 6284-81-7 1,1,2,2-tetrabutoxy-ethane 
• 109-69-3 n-Butyl chloride 
• 6550-99-8 1-(2-bromoethoxy)butane 
• 638-56-2 1,11-dichloro-3,6,9-trioxaundecane 
• 2372-45-4 sodium butanolate 
• 112-60-7 Tetraethylene glycol 
• 112-26-5 1,2-bis(2-chloroethoxy)ethane 
• 71-36-3 butan-1-ol 
• 112-27-6 2,2'-[1,2-ethanediylbis(oxy)]bisethanol 
• 95-55-6 2-amino-phenol 
• 52559-90-7 1,17-dichloro-3,6,9,12,15-pentaoxaheptadecane 

Downstream Products

• 574-45-8 N-(diphenylmethylidene)phenylamine 

Relevant articles and documents

METHOD FOR PREPARING DOUBLE-SEALED-END GLYCOL ETHER

Disclosed is a method for preparing a double end capped glycol ether, the method comprising: introducing into a reactor a raw material comprising a glycol monoether and a monohydric alcohol ether, and enabling the raw material to contact and react with an acidic molecular sieve catalyst to generate a double end capped glycol ether, a reaction temperature being 50-300° C., a reaction pressure being 0.1-15 MPa, a WHSV of the glycol monoether in the raw material being 0.01-15.0 h?1, and a mole ratio of the monohydric alcohol ether to the glycol monoether in the raw material being 1-100:1. The method of the present invention enables a long single-pass lifespan of the catalyst and repeated regeneration, has a high yield and selectivity of a target product, low energy consumption during separation of the product, a high economic value of a by-product, and is flexible in production scale and application.

Special features of preparing benzoaza-12-crown-4 by condensation of o-aminophenol with triethylene glycol dichloride

Preparative method of benzoaza-12-crown-4 preparation via condensation of o-aminophenol with trietylene glycol dichloride using sodium hydroxide as the template agent has been studied at elevated temperature in 2-propanol and n-butanol. Kinetics of the reaction mixture composition change in the course of the process has been investigated by GLC. Performing the reaction in 2-propanol leads to a higher yield of benzoaza-12-crown-4.

CATALYSTS FOR THE PRODUCTION OF HYDROXY ETHER HYDROCARBONS BY VAPOR PHASE HYDROGENOLYSIS OF CYCLIC ACETALS AND KETALS

Catalyst compositions of palladium supported on alumina or zirconium oxide supports having low or no silicon dioxide contents and having a specific surface area or modified with alkali, alkaline earth, or phosphine oxide compounds are selective in a vapor phase hydrogenolysis reaction to convert cyclic acetal compounds and/or cyclic ketal compounds in the presence of hydrogen to their corresponding hydroxy ether hydrocarbon reaction products.