but there are still problems in industry development

BDO (1,4-butanediol) is a saturated carbon four-chain diol. It is a colorless oily liquid when the temperature is higher than the freezing point. It is a needle-like crystal when the temperature is lower than the freezing point. It is hygroscopic and can be mixed with water. Miscible, soluble in ethanol, slightly soluble in ether. BDO…