Diethylene glycol

• CAS No:

111-46-6

• Formula:

C4H10O3

• Chemical Name:

Diethylene glycol

Description

ODOURLESS COLOURLESS VISCOUS HYGROSCOPIC LIQUID.

Diethylene glycol appears as a colorless liquid. Denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.|Liquid; PelletsLargeCrystals|ODOURLESS COLOURLESS VISCOUS HYGROSCOPIC LIQUID.

Diethylene glycol appears as a colorless liquid. Denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.|Diethylene glycol is a hydroxyether.

Diethylene glycol Basic Attributes

Molecular Weight ：106.12

Exact Mass ：106.12

EC Number ：203-872-2

Characteristics

PSA ：49.7

XLogP3 ：-1.47

Appearance ：colorless Oily Liquid

Density ：1.18 g/cm3 @ Temp: 20 °C

Melting Point ：-6.5 °C

Boiling Point ：244-245 °C

Flash Point ：143 °C

Refractive Index ：1.445-1.448

Water Solubility ：H2O: 50 mg/mL at 20 °C, clear, colorless

Storage Conditions ：Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed. Store protected from moisture.

Vapor Pressure ：0.01 mm Hg ( 20 °C)

Vapor Density ：2.14 (vs air)

Flammability characteristics ：1.6%-10.8%

Explosive limit ：2-12.3%

Odor ：Practically odorless

Taste ：Sharply sweetish taste

OH ：3.00e-11 cm3/molecule*sec

Henrys Law Constant ：Henry's Law constant = 2.0X10-9 atm-cu m/mol at 25 °C (est)

Experimental Properties ：Solidifies at -10.45 °C (when pure); hygroscopic|Percent in saturated air: 0.0013 (20 °C)|Liquid molar volume = 0.095268 cu m/kmol|Ideal gas heat of formation = -5.712E+8 J/kmol|Hydroxyl radical reaction rate constant = 3.0X10-11 cu cm/molec-sec at 25 °C

Air and Water Reactions ：Slightly soluble in water.

Reactive Group ：Alcohols and Polyols

Reactivity Profile ：DIETHYLENE GLYCOL is incompatible with strong oxidizing agents. It is also incompatible with strong bases. It can react with sulfuric acid and other dehydrating agents, nitric acid, oxygen, hydrogen peroxide, perchloric acid and strong acids. Mixtures with sodium hydroxide decompose exothermically when heated to 446° F. (NTP, 1992)

Peroxide Forming Chemical ：2-Hydroxyethyl ether|D*: Other compounds that may form peroxides|Lloyd (Dow) - JACS

Autoignition Temperature ：444 °F (USCG, 1999)|444 °F|229 °C

Heat of Combustion ：-9617 BTU/LB= -5343 CAL/G= -223.7X10+5 JOULES/KG

Flammable Limits ：1.6%-10.8%

Heat of Vaporization ：270 BTU/LB= 150 CAL/G= 6.28X10+5 JOULES/KG

Critical Temperature & Pressure ：CRITICAL TEMP: 766 °F= 408 °C= 681 DEG K; CRITICAL PRESSURE 680 PSIA= 46 ATM= 4.7 MEGANEWTONS/SQUARE M

Diethylene glycol Use

Solvent, gas dehydrating agent, extractant, water softener, gas chromatography fixed solution, suitable for aqueous solution analysis, selective polyethylene glycol is similar, used for analysis of oxygen compounds (especially alcohol), aniline, fatty amine, pyridine and quinoline Porphyrin.

Accelerator or Catalyst

Adhesives and sealants