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What is BDO and What are Its Characteristics?


What is BDO and What are Its Characteristics?

Welinks group tells you what is BDO and what are its characteristics so that you can better understand the related content of 1.4-Butanediol.

1. Physical Properties

1,4-butanediol is a colorless oily liquid with a flammable melting point of 20.1 ℃. The boiling point is 235 ℃. Flash point (open cup) 121 ℃. Relative density D 4201.0171. The refractive index is nd201.4461. The viscosity (25 ℃) was 71.5mpa · s. It is hygroscopic. It is miscible with water, soluble in methanol, ethanol, acetone and slightly soluble in ether.

2. chemical Properties

It has strong reaction activity, and can carry out a variety of chemical reactions such as oxidation, dehydration, displacement, polymerization, amination, esterification, halogenation, etc. to produce a series of important chemical products. Ketone, slightly soluble in ether.


3. Production Process

1,4-butynediol was prepared from acetylene and formaldehyde in the presence of catalyst, and then prepared by catalytic hydrogenation. It can also be prepared from 1,3-butadiene, acetic acid and oxygen by acetylation, hydrogenation and hydrolysis.

4. Packaging, Storage and Transportation

They are packed in aluminum, galvanized iron or plastic drums, or stored and transported in tank cars as inflammable and toxic substances. As the melting point is as high as 20 ℃, the tank car should be equipped with heating pipe.

5. Purpose

1,4-butanediol is widely used, in addition to the production of polybutylene terephthalate (PBT), tetrahydrofuran (THF), polybutylene terephthalate (PBT) γ- Tine (GBL), N methyl pyrrolidone (NMP), N- vinyl pyrrolidone (NVP), polyurethane resin (PU) and high-performance elastic fiber SPANDEX (spandex) and other high value fine chemical products, widely used as solvents, pharmaceutical cosmetics, plasticizers, curing agents, pesticides, herbicides, foam artificial leather, fiber, engineering plastics and so on.

What is BDO and What are Its Characteristics

Name BDO (1.4-Butanediol)
Molecular Formula C4H10O2
CAS No. 110-63-4
Typical Properties Boiling point @ 760 TORR 228°C/442°F
Freezing Point 19-20°C
Molecular Weight 90.12
Specific Gravity (20°/20°C) 1.015
Hydroxyl Value 1245
Flash Point (Closed Cup) 115°C/239°F
Package ISO Tank or Galvanized drums
Chemistry Intermediates and Solvents
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