32160

Diethylene glycol

puriss. p.a., ≥99.0% (GC), colorless

• Synonyme(s) : 2,2′-oxydiéthanol, 2-hydroxyéthyl éther
• Formule linéaire : (HOCH₂CH₂)₂O
• Numéro CAS: 111-46-6
• Poids moléculaire : 106.12
• Numéro Beilstein : 969209
• Numéro CE : 203-872-2
• Numéro MDL: MFCD00002882
• Code UNSPSC : 12352100
• ID de substance PubChem : 57648659
• Nomenclature NACRES : NA.21

Propriétés

• Densité de vapeur: 2.14 (vs air)
• Niveau de qualité: 200
• Pression de vapeur: 0.01 mmHg ( 20 °C)
• Description: non-ionic
• Qualité: puriss. p.a.
• Pureté: ≥99.0% (GC)
• Forme: viscous liquid (clear)
• Température d'inflammation spontanée: 442 °F
• Limite d'explosivité: 2-12.3 %
• Impuretés: ≤0.003% peroxides (as H₂O₂); ≤0.01% free acid (as CH₃COOH); ≤0.1% water; ≤0.8% ethylene glycol (HOCH₂CH₂OH)
• Couleur: colorless; APHA: ≤25
• Indice de réfraction: n20/D 1.447 (lit.); n20/D 1.447
• Point d'ébullition: 245 °C (lit.)
• Pf: −10 °C (lit.)
• Densité: 1.116 g/mL at 20 °C; 1.118 g/mL at 25 °C (lit.)
• Traces de cations: 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
• Chaîne SMILES: OCCOCCO
• InChI: 1S/C4H10O3/c5-1-3-7-4-2-6/h5-6H,1-4H2
• Clé InChI: MTHSVFCYNBDYFN-UHFFFAOYSA-N

Description

Description générale

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.

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.

Informations sur la sécurité

• Pictogrammes: GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H302
• Conseils de prudence: P264 - P270 - P301 + P312 - P501
• Classification des risques: Acute Tox. 4 Oral
• Code de la classe de stockage: 10 - Combustible liquids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 280.4 °F - closed cup
• Point d'éclair (°C): 138 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter