Diethylene Glycol

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Related to Diethylene Glycol: diethylene glycol monoethyl ether

diethylene glycol

[dī′eth·ə‚lēn ′glī‚kȯl]

(organic chemistry)

CH₂OHCH₂OCH₂CH₂OH Clear, hygroscopic, water-soluble liquid, boiling at 245°C; soluble in many organic solvents; used as a softener, conditioner, lubricant, and solvent, and in antifreezes and cosmetics.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Diethylene Glycol

(β,β’-dihydroxydiethyl ether), HOCH₂CH₂OCH₂CH₂OH, a viscous colorless liquid, having a melting point of -8°C, a boiling point of 245°C, a density of 1.1197 g/cm³ (15°C), and a refractive index of 1.4472. It is miscible with water,, alcohol, and acetone but slightly soluble in ether and benzene. Its chemical properties resemble those of ethylene glycol. The latter, along with ethylene oxide, and ethylene chlorohydrin, ClCH₂CH₂OH, serves as a raw material for the industrial preparation of diethylene glycol.

Diethylene glycol is extensively used as a solvent for nitrocellulose, oils, and resins; as a softener; as a component of antifreeze and absorption mixtures; and as a drying agent (in the gas industry). Some derivatives of diethylene glycol are of practical importance, such as, diethylene glycol dinitrate, the monoethers (Carbitols), and the diethers (for example, diglyme, CH₃OCH₂CH₂OCH₂CH₂OCH₃).

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Temperature Reduction 5% 10% 15% Dipropylene Glycol Methyl Ether 41 10 0 Dip ropylene Glycol Propyl Ether 35 10 0 Dipropylene Glycol n-Butyl Ether 46 28 18 Diethylene Glycol Mono Butyl Ether 48 17 0 Ethylene Glycol Mono Butyl Ether 48 37 24 Diethylene Glycol 48 12 0 Figure 2--MFFT reduction after addition of 9% diethylene glycol.

Cosolvent selection for minimum film forming temperature reduction

For the cure study on the alumina trihydrate reinforced allylester resins, three kinds of allylester prepolymer have been synthesized through transesterification using diallyl terephthalate + 1,3-butylene glycol, diallyl isophthalate + 1,3-butylene glycol, and diallyl isophthalate + diethylene glycol. Subsequently, DSC dynamic curing experiments have been carried out to estimate the activation energy (E) and the frequency factor (A) of cured allylester resins (20-23).

A cure study on alumina trihydrate reinforced allylester resins by differential scanning calorimetry

He noted that the export products of South Pars region include light and heavy polyethylene, diethylene glycol, triethylene glycol, monoethylene glycol, urea fertilizer, butane, propane, gas condensates, cement and methanol.

Oil Minister: 4 More Phases of South Pars Gas Field to Start Production Soon

The cosolvents used were: ethylene glycol monobutyl ether (EB, a fast hydrophilic); diethylene glycol mono butyl ether (DB, a slow hydrophilic); and dipropylene glycol normal butyl ether (DPnB, a slow hydrophobic).

Hydrophilic/hydrophobic balance for cosolvent selection

Six more child deaths were recorded on Wednesday, on top of 28 reported last month in three locations after being given "My Pikin", a teething syrup contaminated with diethylene glycol, which is blamed for causing kidney failure.

'Toxic' syrup kills Nigerian babies

All had traces of diethylene glycol, according to the Ministry of Commerce and Industry.

Saudi ministry bans Chinese toothpastes

The RAPEX system recently showed its effectiveness in the case of a Chinese toothpaste that contained diethylene glycol, a toxic substance that can be used as antifreeze or solvent.

CONSUMERS : KUNEVA POSITIVE ABOUT DISCUSSIONS WITH CHINESE AUTHORITIES

These toothpastes may contain diethylene glycol, a chemical used in antifreeze.

Suspect toothpaste confiscated at store; Counterfeit Colgate pungent, greenish

Diethylene glycol distearate, isopropyl myristate, and isopropyl palmitate are generally compatible with cellulose nitrate and ethyl cellulose.

Plasticizers

Ether ester plasticizers based on ethylene glycol monobutyl ether and diethylene glycol monobutyl ether are listed in Section 313 of SARA Title Ill by the EPA.

New non-SARA 313 ether ester plasticizers

In an engaging style, Fielden tells us about frauds concerning Monsieur Grivelet (Burgundy), Austria (diethylene glycol) and Monsieur Bert (Bordeaux).