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allene

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Origin: China

Cas No: 463-49-0

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

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Products Specification
Product Description

Property

CAS No.: 463-49-0 Formula: C3H4 Molecular Weight: 40.06390

Description

Propadiene is the organic compound with the formula H2C=C=CH2. It is the simplest allene or compound with two adjacent C=C double bonds, and can also be identified as allene. As a constituent of MAPP gas, it has been used as a fuel for specialized welding.

Basic Info

Chemical Name	allene
Synonyms	PROPADIENE; Isoallylene; 1,2-propanediene; 1,2-Propadiene; CH2=C=CH2; sym-Allylene; Allene; methylene ethylene; MAPPGAS; propadienylidene; propardiene;
CAS No.	463-49-0
Molecular Formula	C3H4
Molecular Weight	40.06390
PSA	0.00000
LogP	0.95730

Properties

Appearance & Physical State	colorless gas with a sweet, olefinic odor.
Density	0.546 g/cm3
Melting Point	-136ºC(lit.)
Refractive Index	1.339
Storage Condition	2-8ºC
Vapor Pressure	5020mmHg at 25°C

Safety Info

Hazard Class	2.1
Safety Statements	9-16-33
HS Code	2901299090
RIDADR	UN 2200 2
Risk Statements	R12
Hazard Codes	F+

Synthesis Route

2,2-Dichloropropane→2-Chloropropene+allene
Propane, 1,2-dichloro-, (±)-→2-Chloropropene+ethene
Methanol+Methane, ion(2+)→propene+allene

GC Analysis

Column type	Active phase	Temperature (°C)	Retention Index (I)	Temperature Control Method
Capillary	CP Sil 5 CB	20.	329.5	isothermal
Capillary	PoraPLOT Q	100.	311.	isothermal
Capillary	PoraPLOT Q	160.	316.	isothermal
Packed	Squalane	27.	317.	isothermal
Packed	Squalane	49.	318.	isothermal