Vinyl Acetylene Supplier C4H4 Gas
COA
689-97-4
Industrial Grade
99%
ShangHai
Chengdu xenon
40L/17kg
2026-05-25
Industrial Gases
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Product Description
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Seller Information
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DescriptionCertificatesBasic Info
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Product Name:
1-Buten-3-yne
Other Name:1-Buten-3-yne;Vinylacetylene;Ethene,ethynyl-;Monovinylacetylene;1-Butyn-3-ene;3-Buten-1-yne;Butenyne;1-Butenyne;3-Butyn-1-ene;Vinylethyne
CAS No.:689-97-4
Molecular Formula:C4H4
InChIKeys:InChIKey=WFYPICNXBKQZGB-UHFFFAOYSA-N
Molecular Weight:52.07
Exact Mass:52.07
EC Number:211-713-3
UNII:VW72FM10OQ
UN Number:1954
DSSTox ID:DTXSID4029199
Color/Form:Colorless gas or liquid
Categories:
Characteristics-
PSA:
0
XLogP3:0.80560
Appearance:1-buten-3-yne appears as a colorless gas or liquid. Derived by the dimerization of acetylene. Used in the synthesis of neoprene and for other organic syntheses.
Density:0.7095 g/cm3 @ Temp: 0 °C
Melting Point:203 °C @ Solvent: Water
Boiling Point:5.1 °C @ Press: 760 Torr
Refractive Index:1.408
Water Solubility:In water, 1.79X10+3 mg/l @ 30 deg C
Vapor Pressure:1,350 mm Hg @ 25 deg C
Vapor Density:1.80 (AIR= 1)
Toxicity:Inhalation-Mouse LC50: 97200 mg/m3/2 hours
Flammability characteristics:Thermal decomposition emits spicy and irritating smoke
Explosive limit:Forms explosive peroxides with air or oxygen. Very exothermic decomposition when heated. Reacts explosively when heated with 1,3-butadiene or oxygen. Reacts with silver nitrate to form the explosive silver buten-3-ynide.
Odor:acetylene-like odor
Air and Water Reactions:Highly flammable. Oxidizes in air to form unstable peroxides that may explode spontaneously.
Reactive Group:Hydrocarbons, Aliphatic Unsaturated
Reactivity Alerts:Highly Flammable
Reactivity Profile:1-BUTEN-3-YNE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions. Forms an explosive salt with silver nitrate. Thermally unstable, under pressure, in combination with 1,3-butadiene [Loss Prev., 1971, 5, 67].
Peroxide Forming Chemical:Vinyl acetylene|C: Compounds that autopolymerize due to peroxide formation if inhibitors are depleated or not present|Kelly|Several incidents in the literature where either explosions have occured or explosive levels of peroxide have built up. See Bretherick's|Hennion, G. F. et al., Org. Synth., 1963, Coll. Vol. 4, 684
Hazard IdentificationClassification of the substance or mixture
Flammable gases, Category 1A, Flammable gas
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H220 Extremely flammable gas
H280 Contains gas under pressure; may explode if heated
Precautionary statement(s) Prevention P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
Response P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P381 In case of leakage, eliminate all ignition sources.
Storage P403 Store in a well-ventilated place.
Disposal none
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
Industrial Gases
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Location:
No. 1015, Floor 10, Unit 1, Building 2, No. 1700, North Section of Tianfu Avenue, Chengdu High-tech Zone, China (Sichuan) Pilot Free Trade Zone
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Payment Terms:
D/P,L/C,D/A
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Total Annual Revenue:
$1 million-$2.5 million
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Total Employees:
11-50
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Year of Establishment:
2018
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Certifications:
Occupational Health,Environmental management
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