Property description OF 1,3-Butanediol CAS 107-88-0 (1,3-BDO)
Colorless viscous liquid. Melting point<- 54 ℃, boiling point 207 ° C at 760 mmHg, relative density 1.01 (20/4 ℃), viscosity (25 ℃) 103.9 mPa · s, refractive index n20/D1.4385-1.4405 (lit), surface tension (25 ℃) 37.8 mN, m, flash point 121 ℃. Soluble in water, acetone, methyl ethyl ketone, ethanol, dibutyl phthalate, castor oil, almost insoluble in aliphatic hydrocarbons, benzene, toluene, carbon tetrachloride, ethanolamines, mineral oil, linseed oil. When heated, it can dissolve nylon, and also partially dissolve shellac and rosin. Due to the high boiling point, it is easy to be oxidized by air when distilling under normal pressure, so it is better to distill under reduced pressure. Odorless, slightly bitter sweet. With strong moisture absorption, it can absorb water equivalent to 12.5 of its own weight (when the relative humidity is 50), or even 38.5 (when the relative humidity is 80).
Application
It is mainly used to prepare polyester resin, polyurethane resin, plasticizer, etc. It is also used as a humidifier and softener for textiles, paper and tobacco.
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