English name: diglyme
CAS number: 111-96-6
Molecular formula: C₆H₁₄O₃
Molecular weight: 134.17400
Exact quality: 134.09400
PSA: 27.69000
LOGP: 0.29580

Appearance and properties: transparent liquid
Density: 0.943 g/mL at 25 °C(lit.)
Boiling point: 162 °C(lit.)
Melting point: −64 °C(lit.)
Flash point: 134.6 °F
Refractive index: n20/D 1.408(lit.)
Water solubility: Miscible
Stability: Stable. Combustible. Incompatible with strong oxidizing agents. May be air or light sensitive.
Storage conditions: the warehouse is ventilated, low temperature and dry
Vapor density: 4.6 (vs air)
Vapor pressure: 3.2mmHg at 25°C

Production method
1. Derived from the reaction of diethanol and methanol. It can also be obtained by reacting diethylene glycol monomethyl ether with methyl chloride (or dimethyl sulfate). Refining method: It can be dried with granular sodium hydroxide first, and then refluxed in the presence of calcium hydride, lithium aluminum hydride, sodium borohydride or sodium hydride, and refined by distillation under reduced pressure. The operation should be carried out in a nitrogen stream. If diglyme has an amine-like odor, it can be removed by shaking with a weakly acidic ion exchange resin before drying and distillation. Add 0.01% sodium borohydride during storage to prevent the formation of peroxides.

RTECS Number: KN3339000 Safety Instructions: S53-S45 Dangerous Category Code: R10; R19; R60; R61 WGK Germany: 1 Dangerous Goods Transport Code: UN 3271 3/PG 3 Customs Code: 2909199090 Dangerous Category: 3 Packing Class: III Dangerous Goods Marking: T Hazard precautionary statement: P201; P210; P280; P308 + P313; P370 + P378 Supplementary hazard statement: may generate explosive peroxides. Hazard description: H226; H360 Hazard signs: GHS02, GHS08 Signal word: Danger