1,2-Butanediol
- CAS No.
- 26171-83-5
- Chemical Name:
- 1,2-Butanediol
- Synonyms
- 1,2-BUTYLENE GLYCOL;1,2-Butanediol;(±)1,2-Butaneiol;1,2-BUTANEDIOL 98%;1,2-DIHYDROXYBUTANE;(+/-)-1,2-BUTANEDIOL
- CBNumber:
- CB8664950
- Molecular Formula:
- C4H10O2
- Molecular Weight:
- 90.12
- MDL Number:
- MFCD00004570
- MOL File:
- 26171-83-5.mol
- MSDS File:
- SDS
| Melting point | 0.07°C (estimate) |
|---|---|
| Boiling point | 191-192 °C747 mm Hg(lit.) |
| Density | 1.006 g/mL at 25 °C(lit.) |
| refractive index |
n |
| Flash point | 200 °F |
| CAS DataBase Reference | 26171-83-5(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P280-P305+P351+P338 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | EK0380000 | |||||||||
| NFPA 704 |
|
1,2-Butanediol Chemical Properties,Uses,Production
Chemical Properties
1,2-Butanediol is a colorless liquid that is soluble in water.
Uses
1,2-Butanediol can be used as an ink solvent, as well as in the production of polyester resins and plasticizers. It can also be used as a raw material for unsaturated polyester resins by reacting 1,2-butanediol with unsaturated dicarboxylic acid.
Definition
ChEBI:1,2-Butanediol is a butanediol in which the two hydroxy groups are located at positions 1 and 2. It has a role as a metabolite. It is a butanediol and a glycol.
Hazard
1,2-Butanediol is irritating to the eyes. Exposure at high levels could cause lowering of consciousness.
Synthesis
In a 100 L reactor, 50 kg of water, 10 kg of acetone, 44 kg of potassium peroxodisulfate complex salt (oxone, 0.071 Kmol), potassium chloride 6.3 kg (0.11 Kmol) and 1-butene 4 kg (56.11, 0.071 Kmol) were added and heated. Stirring reaction to 30 ° C for 12 h, after the reaction is completed, reduce the temperature to 25 ° C, add 20% potassium hydroxide aqueous solution to adjust the pH to 12, heat to 40 ° C, stir reaction for 4h. After the reaction, it was cooled to room temperature, kept strong alkaline, extracted with dichloromethane to remove impurities, and then adjusted to pH 2 with 6 mol/L hydrochloric acid. The product was extracted with ethyl acetate, and the solvent was evaporated to give 1,2-butanediol 5.65 kg, yield 88%.
1,2-Butanediol Preparation Products And Raw materials
1,2-Butanediol Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| RYSS TECH LTD | 400-188-0725 +86 21 34310725 13611771617 | China | 1999 | 57 | |
| Huainan Kedi Chemical Factory | 0554-2106669 | sales1@kedichem.com | China | 4914 | 55 |
| Chengdu HuaXia Chemical Reagent Co. Ltd | 400-1166-196 13458535857 | cdhxsj@163.com | China | 13323 | 58 |
| Zhengzhou Gecko Scientific Inc. | 0371-63336364 17344886665 | 209932355@qq.com | China | 535 | 55 |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
| Shandong Ono Chemical Co., Ltd. | 0539-6362799 20） | China | 10007 | 58 | |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +86-189 4982 3763 | sales@tnjchem.com | China | 34526 | 58 |
| Career Henan Chemica Co | +86-0371-86658258 +86-13203830695 | laboratory@coreychem.com | China | 30203 | 58 |
| Henan Weituxi Chemical Technology Co., Ltd. | 0371-63284658 18135795563 | 3905209149@qq.com | China | 9716 | 58 |
