Title: Carbitol® (Union Carbide)
CAS Registry Number: 111-90-0
CAS Name: 2-(2-Ethoxyethoxy)ethanol
Additional Names: diethylene glycol monoethyl ether; ethyl digol
Molecular Formula: C6H14O3
Molecular Weight: 134.17
Percent Composition: C 53.71%, H 10.52%, O 35.77%
Line Formula: CH3CH2OCH2CH2OCH2CH2OH
Literature References: Prepn from ethylene oxide and 2-ethoxyethanol in the presence of SO2: Britton, Sexton, US 2807651 (1957 to Dow). Toxicity data: Smyth, Carpenter, J. Ind. Hyg. Toxicol. 30, 63 (1948).
Properties: Very hygroscopic liquid, bp 196°. d425 0.9855, d2020 1.0273. nD20 1.4273. Flash pt 96°C (Tag open cup). Miscible with acetone, benzene, chloroform, ethanol, ether, pyridine, etc.: Jackson, Drury, Ind. Eng. Chem. 51, 1491 (1959). Also miscible with water. LD50 orally in rats: 8.69 g/kg (Smyth, Carpenter).
Boiling point: bp 196°
Flash point: Flash pt 96°C (Tag open cup)
Index of refraction: nD20 1.4273
Density: d425 0.9855; d2020 1.0273
Toxicity data: LD50 orally in rats: 8.69 g/kg (Smyth, Carpenter)
Derivative Type: Acetate
Molecular Formula: C8H16O4
Molecular Weight: 176.21
Percent Composition: C 54.53%, H 9.15%, O 36.32%
Properties: Liquid, bp 218.5°. mp -25°. d2020 1.0114. nD20 1.4213. Flash pt 110°C (Tag open cup). Miscible with water, alc, ether, most oils. LD50 orally in rats: 11 g/kg (Smyth, Carpenter).
Melting point: mp -25°
Boiling point: bp 218.5°
Flash point: Flash pt 110°C (Tag open cup)
Index of refraction: nD20 1.4213
Density: d2020 1.0114
Toxicity data: LD50 orally in rats: 11 g/kg (Smyth, Carpenter)
Use: As solvent for cellulose esters, in lacquer and thinner formulations, in quick-drying varnishes and enamels, for dyestuffs and wood stains. Acetate is used as a solvent and plasticizer for cellulose esters, gums, resins, etc.

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