ChemicalBook > CAS DataBase List > 2,3-Butanediol

2,3-Butanediol

Product Name
2,3-Butanediol
CAS No.
513-85-9
Chemical Name
2,3-Butanediol
Synonyms
BUTANE-2,3-DIOL;Dimethylethylene glycol;2,3-BUTYLENE GLYCOL;OMEGA-BUTYLENE GLYCOL;2,3-Butanediol, 98%, mixture of racemic and meso forms, tech.;2,3-Butandiol;2,3-Butaneiol;2,3-butanodiol;Butan-2,3-diol;2,3-BUTANEDIOL
CBNumber
CB4853718
Molecular Formula
C4H10O2
Formula Weight
90.12
MOL File
513-85-9.mol
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2,3-Butanediol Property

Melting point:
25 °C (lit.)
Boiling point:
183-184 °C (lit.)
Density 
1.002 g/mL at 20 °C (lit.)
vapor pressure 
<1 hPa (20 °C)
refractive index 
n20/D 1.433(lit.)
Flash point:
185 °F
storage temp. 
Store below +30°C.
solubility 
Chloroform, Methanol
pka
14.67±0.20(Predicted)
form 
Viscous Liquid
color 
Colorless to pale yellow
Odor
at 0.10 % in dipropylene glycol. fruity creamy buttery
PH
7 (H2O, 20℃)Aqueous solution
explosive limit
3.1-11.4%(V)
Odor Type
creamy
Water Solubility 
SOLUBLE
Sensitive 
Hygroscopic
Merck 
14,1568
BRN 
969165
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents, acid anhydrides, acid chlorides, chloroformates, reducing agents.
InChIKey
OWBTYPJTUOEWEK-UHFFFAOYSA-N
LogP
-0.92 at 25℃
CAS DataBase Reference
513-85-9(CAS DataBase Reference)
NIST Chemistry Reference
2,3-Butanediol(513-85-9)
EPA Substance Registry System
2,3-Butanediol (513-85-9)
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Safety

Safety Statements 
24/25
WGK Germany 
1
RTECS 
EK0532000
Autoignition Temperature
395 °C DIN 51794
TSCA 
Yes
HS Code 
29053980
Hazardous Substances Data
513-85-9(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 5000 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H227Combustible liquid

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P403+P235Store in a well-ventilated place. Keep cool.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
B84904
Product name
2,3-Butanediol
Purity
98%
Packaging
100g
Price
$194
Updated
2024/03/01
Sigma-Aldrich
Product number
8.18801
Product name
2,3-Butanediol
Purity
(mixture of meso- D- and L-form) for synthesis
Packaging
5ml
Price
$32.6
Updated
2024/03/01
Sigma-Aldrich
Product number
8.18801
Product name
2,3-Butanediol
Purity
(mixture of meso- D- and L-form) for synthesis
Packaging
250ML
Price
$99
Updated
2024/03/01
Sigma-Aldrich
Product number
8.18801
Product name
2,3-Butanediol
Purity
(mixture of meso- D- and L-form) for synthesis
Packaging
1L
Price
$319
Updated
2024/03/01
Sigma-Aldrich
Product number
42038
Product name
2,3-Butanediol
Purity
analytical standard, mixture of racemic and meso forms
Packaging
250mg
Price
$82.8
Updated
2024/03/01
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2,3-Butanediol Chemical Properties,Usage,Production

Description

2,3-Butanediol(23BD) is the organic compound with the formula (CH3CHOH). It is classified as a vic-diol (glycol). It exists as three stereoisomers, a chiral pair and the meso isomer. All are colorless liquids. Applications include precursors to various plastics and pesticides.
2,3-Butanediol is a commodity chemical usually produced from oil. It can be used as a precursor in the manufacture of a range of chemical products, including the solvents methyl ethyl ketone (MEK), gamma-butyrolactone (GBL), and 1,3-butadiene.

Chemical Properties

viscous colourless liquid, or colourless to white solid

Uses

2,3-Butanediol (2,3-BD) is a promising bulk chemical with a potentially wide range of applications e.g., in the manufacture of printing inks, perfumes, synthetic rubber, fumigants, antifreeze agents, fuel additives, foodstuffs and pharmaceuticals. Its high heating value and ability to increase the octane number of fuels make 2,3-BD a promising drop-in fuel. It can also be converted to methyl-ethyl ketone (MEK), which is considered an effective liquid fuel additive. After combination with MEK and hydrogenation reaction, 2,3-BD can be converted to octane, which is used to produce high-quality aviation fuel.

Definition

ChEBI: 2,3-Butanediol is a butanediol in which hydroxylation is at C-2 and C-3. It is a butanediol, a glycol and a secondary alcohol.

Preparation

2,3-Butanediol is prepared by hydrolysis of 2,3-epoxybutane:
(CH3CH)2O + H2O → CH3(CHOH)2CH3

Reactions

2,3-Butanediol undergo dehydration to form butanone (methyl ethyl ketone):
(CH3CHOH)2 → CH3C(O)CH2CH3 + H2O
It can also undergo deoxydehydration to form butene:
(CH3CHOH)2 + 2 H2 → C4H8 + 2 H2O

General Description

2,3-Butanediol is a chiral compound which is extensively utilized in chemical feedstocks and liquid fuels.

Flammability and Explosibility

Non flammable

Safety Profile

Mildly toxic by ingestion. See also ETHYLENE GLYCOL. Flammable when exposed to heat or flame. Incompatible with oxidizing materials. To fight fire, use alcohol foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes

Purification Methods

Recrystallise it from isopropyl ether at low temperature. [Beilstein 1 IV 2524.]

2,3-Butanediol Preparation Products And Raw materials

Raw materials

Molasses

Preparation Products

4,5-dimethyl-1,3,2-dioxathiolane 2-oxide Acetoin
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2,3-Butanediol Suppliers

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View Lastest Price from 2,3-Butanediol manufacturers

HebeiShuoshengImportandExportco.,Ltd
Product
2,3-Butanediol 513-85-9
Price
US $6.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
2000KG/Month
Release date
2024-08-09
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
2,3-Butanediol 513-85-9
Price
US $10.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-15
Hebei Longbang Technology Co., Ltd
Product
2,3-Butanediol 513-85-9
Price
US $6.00/kg
Min. Order
1kg
Purity
More than 99%
Supply Ability
2000KG/Month
Release date
2024-05-10

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