2,2-Di(hydroxyethyl) ether

2,2-Di(hydroxyethyl) ether - Names and Identifiers

Name	DIETHYLENE GLYCOL
Synonyms	DEG NSC 36391 Brecolane NDG Diethyleneglyc 2,2'-oxyethanol 2,2'-Oxyethanol Diethylene glyco 2,2'-oxydiethanol 2,2'-oxydi-ethano DIETHYLENE GLYCOL Diethylene glycol 2,2'-oxybis-ethano 3-Oxa-1,5-pentanediol 3-Oxapentane-1,5-diol 2,2'-dihydroxyethylether 2,2'-Dihydroxyethyl ether 2-(2-Hydroxyethoxy)ethanol 2,2-Di(hydroxyethyl) ether 2-(2-hydroxyethoxy)-ethanol bis(beta-hydroxyethyl)ether 2-(2-hydroxy-ethoxy)-ethanol Bis(beta-hydroxyethyl) ether 3-OxapentaMethylene-1,5-diol Di-ethylene glycol,Ethylene diglycol 2,2'-Oxydiethanol Bis(2-hydroxyethyl) Ether Diethylene glycol, Bis(2-hydroxyethyl) ether
CAS	111-46-6
EINECS	203-872-2
InChI	InChI:1S/C4H10O3/c5-1-3-7-4-2-6/h5-6H,1-4H2
InChIKey	MTHSVFCYNBDYFN-UHFFFAOYSA-N

2,2-Di(hydroxyethyl) ether - Physico-chemical Properties

Molecular Formula	C4H10O3
Molar Mass	106.12
Density	1.118g/mLat 25°C(lit.)
Melting Point	−10°C(lit.)
Boling Point	245°C(lit.)
Flash Point	143 °C
Water Solubility	SOLUBLE
Solubility	Miscible with water, insoluble in benzene, toluene, carbon tetrachloride.
Vapor Presure	0.01 mm Hg ( 20 °C)
Vapor Density	2.14 (vs air)
Appearance	Colorless transparent oily liquid
Color	colorless
Odor	Practically odorless.
Maximum wavelength(λmax)	λ: 260 nm Amax: ≤0.02λ: 280 nm Amax: ≤0.01
Merck	14,3119
BRN	969209
pKa	14.03±0.10(Predicted)
PH	5.5-7.0 (25℃, 50mg/mL in H2O)
Storage Condition	Keep in dark place,Sealed in dry,Room Temperature
Stability	Hygroscopic
Sensitive	Hygroscopic
Explosive Limit	2-12.3%
Refractive Index	n20/D 1.447(lit.)
MDL	MFCD00002882
Physical and Chemical Properties	Appearance colorless or light yellow transparent liquid relative density (d 204) 1.1147~1.1180 boiling point ℃ ≥ 241 boiling range (distilling out 90% by volume)] ℃ ≤ 250 flash point ℃ 141
Use	It is used as a gas dehydrating agent and an aromatic extraction solvent, and also used as a lubricant, softener and finishing agent for textiles, as well as a plasticizer, wetting agent, sizing agent, nitrocellulose, resin, grease and other solvents.

2,2-Di(hydroxyethyl) ether - Risk and Safety

Risk Codes	22 - Harmful if swallowed
Safety Description	46 - If swallowed, seek medical advice immediately and show this container or label.
WGK Germany	1
RTECS	ID5950000
FLUKA BRAND F CODES	10
TSCA	Yes
HS Code	29094100
Hazard Note	Toxic/Irritant
Toxicity	LD50 in rats, guinea pigs (g/kg): 20.76, 13.21 orally (Smyth)

2,2-Di(hydroxyethyl) ether - Introduction

Easy to absorb moisture, no smell, spicy sweet taste, soluble in water can be combined with most organic solvents, insoluble in benzene and carbon tetrachloride. Easy to esterify and etherify.

Last Update：2022-10-16 17:12:03

2,2-Di(hydroxyethyl) ether - Reference Information

introduction	diethylene glycol, also known as diethylene glycol, forms ester when it reacts with anhydride. It reacts with alkyl sulfate or halogenated hydrocarbon to form ether. It is mainly used as a gas dehydrating agent and extractant, and also as a lubricant and finishing agent for textiles. It is obtained by the interaction of ethylene oxide and ethylene glycol. Diethylene glycol has been widely used in various cosmetics as a solvent, heat preservation agent, and viscosity control agent. It has been used in my country for nearly 20 years, and no problems have been found during this period.
application	diethylene glycol can directly use solvents, natural gas dehydration desiccant, aromatics separation and extraction agents, textile lubricants, softeners, finishing agents, nitrocellulose, resin, grease, printing ink and other solvents, and are also used as antifreeze components in brake fluid and compressor lubricating oil, it can also be used to prepare cleaning agents and as dispersible solvents in other daily chemicals such as inks.
preparation	a diethylene glycol purification process, the steps are: ① dissolution: adding 3-4wt% strong alkali and 3-4wt% chloroethane to the crude diethylene glycol, and stirring at 100 ℃ for 1.5-2 hours to obtain liquid; (2) Decompression distillation: the liquid obtained in step (1) is subjected to decompression distillation, and the fraction at 150 to 155 degrees C is collected to obtain purified diethylene glycol.
chemical properties	colorless, odorless, transparent, hygroscopic viscous liquid. It has a spicy sweet taste. Miscible with water, ethanol, acetone, ether, ethylene glycol, not with benzene, toluene, carbon tetrachloride.
use	used to prepare plasticizer, also used as extractant, desiccant, heat preservation agent, softener and solvent, etc. diethylene glycol is mainly used for dehydration of natural gas and aromatics extraction, and is used as a solvent for ink bonding and textile dyes, it is also used in the production of rubber and resin plasticizers, polyester resins, fiber glass, urethane foams, lubricating oil viscosity improvers and other products. It is used as a gas dehydrating agent and aromatics extraction solvent, as well as as a lubricant, softener and finishing agent for textiles, as well as plasticizer, humidification agent, sizing agent, nitrocellulose, resin and grease And other solvents. solvent, gas dehydrating agent, extractant, water softener, gas chromatography liquid, suitable for analysis of aqueous solution, selective polyethylene glycol is similar, used for analysis of content oxygen compounds (especially alcohol), aniline, fatty amine, pyridine and quinoline.
production method	diethylene glycol is a by-product of ethylene oxide to ethanol.
NIST chemical information	The information is: webbook.nist.gov provides (external link)
EPA chemical information	The information is: ofmpub.epa.gov provides (external link)
spontaneous combustion temperature	442 °F
toxic substance data	information provided by: pubchem.ncbi.nlm.nih.gov provided (external link)

Last Update：2024-04-09 15:16:35

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