3226. Dimethylacetal

Nomenclature

CAS number: 534-15-6
1,1-Dimethoxyethane; acetaldehyde dimethyl acetal; ethylidene dimethyl ether.
C4H10O2; mol wt 90.12.
C 53.31%, H 11.18%, O 35.51%.

Description and references

Prepn from acetaldehyde and methanol: Meadows, Darwent, Can. J. Chem. 30, 501 (1952); Frevel, Hedelund, US 2691684 (1954 to Dow). Toxicity study: H. F. Smyth et al., J. Ind. Hyg. Toxicol. 31, 60 (1949).

Chemical structure

Properties

Liquid, bp 64.5°. d420 0.8516. nD20 1.3665. Miscible with water, alcohol, chloroform, ether. LD50 orally in rats: 6.5 g/kg; LC (in air) in rats: 16000 ppm (Smyth).

Use

As Mering's mixture which is 2 vol dimethylacetal and 1 vol chloroform.