|
molecular formula |
C4H10O2 |
|
CAS NO. |
110-63-4 |
|
molecular weight |
90.12 |
physical properties
|
nature |
Numerical value |
|
purity |
≥99.5% |
|
state |
Colorless oily flammable liquid |
|
melting point |
20.1℃ |
|
boiling point |
235℃ |
|
Flash point (open cup) |
121℃ |
|
Viscosity@25℃ |
71.5mPa·s |
Purpose
1,4-Butanediol is widely used, except for the production of polybutylene terephthalate (PBT), tetrahydrofuran (THF), γ-butyrolactone (GBL), N-methylpyrrolidone (NMP), In addition to fine chemical products with high added value such as N-vinylpyrrolidone (NVP), polyurethane resin (PU) and high-performance elastic fiber SPANDEX (spandex), they are widely used as solvents, pharmaceuticals and cosmetics, plasticizers, curing agents, Pesticides, herbicides, foam artificial leather, fibers, engineering plastics and brighteners in electroplating industries, etc.
It has strong reactivity and can carry out various chemical reactions such as oxidation, dehydration, replacement, polymerization, esterification, halogenation, etc., to generate a series of important chemical products. Hygroscopic, miscible with water, soluble in methanol and ethanol.
Packaging and storage
Packed in aluminum, galvanized iron drums or plastic drums, or stored and transported as flammable and toxic substances in tankers. Because the melting point is as high as 20 ℃, the tank car should be equipped with a heating tube.