32160

Diethylene glycol

≥99.0% (GC), viscous liquid (clear), suitable for GC/GC, puriss. p.a.

• Synonym(s): 2,2′-Oxydiethanol, 2-Hydroxyethyl ether, Bis(2-hydroxyethyl) ether, Diglycol
• Linear Formula: (HOCH₂CH₂)₂O
• CAS Number: 111-46-6
• Molecular Weight: 106.12
• NACRES: NA.21
• PubChem Substance ID: 57648659
• UNSPSC Code: 12352100
• EC Number: 203-872-2
• MDL number: MFCD00002882
• Beilstein/REAXYS Number: 969209
• Assay: ≥99.0% (GC)
• Technique(s): GC/GC: suitable
• Bp: 245 °C (473 °F); 245 °C (lit.)
• Vapor pressure: 0.01 mmHg ( 20 °C)

Properties

• Product Name: Diethylene glycol, puriss. p.a., ≥99.0% (GC), colorless
• InChI key: MTHSVFCYNBDYFN-UHFFFAOYSA-N
• InChI: 1S/C4H10O3/c5-1-3-7-4-2-6/h5-6H,1-4H2
• SMILES string: OCCOCCO
• vapor density: 2.14 (vs air)
• vapor pressure: 0.01 mmHg ( 20 °C)
• description: non-ionic
• grade: puriss. p.a.
• assay: ≥99.0% (GC)
• form: viscous liquid (clear)
• autoignition temp.: 442 °F
• expl. lim.: 2-12.3 %
• technique(s): GC/GC: suitable
• impurities: ≤0.003% peroxides (as H₂O₂); ≤0.01% free acid (as CH₃COOH); ≤0.1% water; ≤0.8% ethylene glycol (HOCH₂CH₂OH)
• color: colorless; APHA: ≤25
• refractive index: n20/D 1.447 (lit.); n20/D 1.447
• Quality Level: 200
• bp: 245 °C (473 °F); 245 °C (lit.)
• mp: −10 °C (lit.)
• density: 1.116 g/mL at 20 °C; 1.118 g/mL at 25 °C (lit.)
• cation traces: Ca: ≤5 mg/kg; Cd: ≤1 mg/kg; Co: ≤1 mg/kg; Cr: ≤1 mg/kg; Cu: ≤1 mg/kg; Fe: ≤2 mg/kg; K: ≤20 mg/kg; Mg: ≤1 mg/kg; Mn: ≤1 mg/kg; Na: ≤20 mg/kg; Ni: ≤1 mg/kg; Pb: ≤1 mg/kg; Zn: ≤10 mg/kg

Description

Application

Diethylene glycol may be used for electrodeposition of cadmium sulfide (CdSe) films.[1] It may be used to compose the fluoride ion electrolytes, for use in the preparation of self-organized titania nanotube arrays.[2]

General description

Diethylene glycol (DEG) is formed as side reaction product during the esterification reaction of terephthalic acid with ethylene glycol.[3] It readily forms complexes with 3d transition metal cations in the presence of alkaline hydroxide.[4] Its solutions are widely employed for antifreeze and lubricating applications. Oxidative degradation of DEG with ozone by modified Fenton process (mixture of hydrogen peroxide and ferric salt) was described in a study.[5]

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302
• pcodes: P264 - P270 - P301 + P312 - P501
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class: 10 - Combustible liquids
• wgk: WGK 1
• flash_point_f: 280.4 °F - closed cup
• flash_point_c: 138 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter