2-Butyne

Product Name: 2-Butyne
CAS No.: 503-17-3
Chemical Name: 2-Butyne
Synonyms: Butyne;2-BUTYNE;But-2-yne;CROTONYLENE;2-Butyne>2-BUTYNE 98%;2-Butyne,98%;CH3CequivCCH3;2-Butyne（delete）;CROTONYLENE(DOT)
CBNumber: CB7853683
Molecular Formula: C4H6
Formula Weight: 54.09
MOL File: 503-17-3.mol

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2-Butyne Property

Melting point:: -32 °C
Boiling point:: 27 °C(lit.)
Density: 0.691 g/mL at 25 °C(lit.)
vapor pressure: 11.47 psi ( 20 °C)
refractive index: n20/D 1.393(lit.)
Flash point:: -25 °C
storage temp.: 2-8°C
form: Liquid
Specific Gravity: 0.691
color: Clear colorless to light yellow
Water Solubility: Not miscible in water.
BRN: 1361340
CAS DataBase Reference: 503-17-3(CAS DataBase Reference)
EPA Substance Registry System: 2-Butyne (503-17-3)

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Safety

Hazard Codes: F+,Xi
Risk Statements: 12-36/37/38
Safety Statements: 16-26-36
RIDADR: UN 1144 3/PG 1
WGK Germany: 3
RTECS: GQ7210000
TSCA: Yes
HazardClass: 3
PackingGroup: I
HS Code: 29012990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H224Extremely flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 254339
Product name: 2-Butyne
Purity: 99%
Packaging: 5g
Price: $63.8
Updated: 2024/03/01

Sigma-Aldrich

Product number: 254339
Product name: 2-Butyne
Purity: 99%
Packaging: 25g
Price: $216
Updated: 2024/03/01

TCI Chemical

Product number: B0951
Product name: 2-Butyne
Purity: >97.0%(GC)
Packaging: 5mL
Price: $68
Updated: 2024/03/01

Alfa Aesar

Product number: A13823
Product name: 2-Butyne, 98%
Packaging: 5g
Price: $60.9
Updated: 2024/03/01

Alfa Aesar

Product number: A13823
Product name: 2-Butyne, 98%
Packaging: 25g
Price: $200
Updated: 2024/03/01

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2-Butyne Chemical Properties,Usage,Production

Chemical Properties

clear colorless to light yellow liquid

Uses

2-Butyne is used to synthesize alkylated hydroquinones in the total synthesis of Vitamin E. It is also used as pharmaceutical intermediates.

General Description

A clear colorless liquid with a petroleum-like odor. Flash point below -4°F. Boiling point 81°F. Less dense than water and insoluble in water. Vapors heavier than air.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

2-Butyne may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.

Hazard

Flammable, dangerous fire risk. Moderate explosion hazard.

Health Hazard

Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Safety Profile

A simple asphyxiant. Very dangerous fire hazard when exposed to heat or flame; can react with oxidzing materials. Moderately explosive in the form of vapor when exposed to heat or flame. To fight fire, use foam, CO2, dry chemicals. See also ACETYLENE COMPOUNDS and ARGON (for a description of simple asphyxiants).

Purification Methods

Stand it over sodium for 24hours, then fractionally distil it under reduced pressure into a cooled receiver. [Beilstein 1 IV 971.]

2-Butyne Preparation Products And Raw materials

Raw materials

Preparation Products

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2-Butyne Suppliers

Americas 1 Belgium 2 China 35 Europe 2 Germany 4 India 3 Japan 2 Switzerland 1 United Kingdom 8 United States 22 Global 80

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503-17-3, 2-ButyneRelated Search:

3,6-DIMETHYL-4-OCTYN-3,6-DIOL Phenylpropiolic acid 2-OCTYNOIC ACID OXOTREMORINE 1,4-BIS(2-HYDROXYETHOXY)-2-BUTYNE, TECH. , 85%,Ethanol, 2,2-2-butyne-1,4-diylbis(oxy)bis-,2-BUTYNE-1,4-DIOLBIS(2-HYDROXYETHYL)ETHER(CA.50%ISOMER) Phenylpropiolaldehyde 3-Nonyn-1-ol Diphenylacetylene 2-Butyne-1-ol, 98+%,1-hydroxy-2-butyne 2,5-Dimethyl-3-hexyne-2,5-diol 3-Hexyn-2,5-diol 2-Butyne-1,4-diol, 98+%,2-BUTYNE-1,4-DIOL 98%,2-BUTYNE-1,4-DIOL, CRYSTALLIZED,2-Butyne-1,4-diol, pract., 95%,1,4-BUTYNE GLYCOL 2-Butynoic acid Acetylenedicarboxylic acid 1,1,3-Triphenylpropargyl alcohol 1,4-DIPHENYLBUTADIYNE 3-PENTYN-1-OL 2-Butyne, 1,4-dichloro-

2-Butyne,98%

But-2-yne

CH3CequivCCH3

Butyne

Crotonylenetylene

CROTONYLENE(DOT)

2-BUTYNE 98%

Crotonylene, Dimethylacetylene

2-BUTYNE, 98%2-BUTYNE, 98%2-BUTYNE, 98%2-BUTYNE, 98%

2-Butyne（delete）

2-Butyne,Crotonylene, Dimethylacetylene

2-BUTYNE

DIMETHYLACETYLENE

CROTONYLENE

2-butyne (Dimethyl acetylene)

2-Butyne&gt

503-17-3

CH3C8801CCH3

CH3CCCH3

CH3CoCCH3

503173

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