Diethylene glycol
SIAL/32160 - puriss. p.a., ≥99.0% (GC), colorless
Synonym: 2,2′-Oxydiethanol; 2-Hydroxyethyl ether; Bis(2-hydroxyethyl) ether; Diglycol
CAS Number: 111-46-6
Empirical Formula (Hill Notation): C4H10O3
Molecular Weight: 106.12
EC Number: 203-872-2
MDL Number: MFCD00002882
Linear Formula: (HOCH2CH2)2O
Product Type: Chemical
| assay | ≥99.0% (GC) |
| autoignition temp. | 442 °F |
| bp | 245 °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 | |
| color | colorless |
| APHA: ≤25 | |
| density | 1.116 g/mL at 20 °C |
| 1.118 g/mL at 25 °C (lit.) | |
| description | non-ionic |
| expl. lim. | 2-12.3 % |
| form | viscous liquid (clear) |
| grade | puriss. p.a. |
| impurities | ≤0.003% peroxides (as H2O2) |
| ≤0.01% free acid (as CH3COOH) | |
| ≤0.1% water | |
| ≤0.8% ethylene glycol (HOCH2CH2OH) | |
| InChI | 1S/C4H10O3/c5-1-3-7-4-2-6 |
| InChI key | MTHSVFCYNBDYFN-UHFFFAOYSA |
| mp | −10 °C (lit.) |
| Quality Level | 200  |
| refractive index | n |
| n |
|
| SMILES string | OCCOCCO |
| technique(s) | GC/GC: suitable |
| vapor density | 2.14 (vs air) |
| vapor pressure | 0.01 mmHg ( 20 °C) |
| Application: | Diethylene glycol may be used for electrodeposition of cadmium sulfide (CdSe) films. It may be used to compose the fluoride ion electrolytes, for use in the preparation of self-organized titania nanotube arrays. |
| General description: | Diethylene glycol (DEG) is formed as side reaction product during the esterification reaction of terephthalic acid with ethylene glycol. It readily forms complexes with 3d transition metal cations in the presence of alkaline hydroxide. 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. |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P264 - P270 - P301 + P312 - P501 |
| Hazard Codes | Xn |
| Risk Statements | 22 |
| Safety Statements | 46 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | 280.4 °F - closed cup |
| Flash Point(C) | 138 °C - closed cup |
| Purity | ≥99.0% (GC) |
| bp | 245 °C (lit.) |
| mp | −10 °C (lit.) |
| Density | 1.116 g/mL at 20 °C; 1.118 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |