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1,4-PENTADIENE

1,4-PENTADIENE
1,4-PENTADIENE structure
CAS No.
591-93-5
Chemical Name:
1,4-PENTADIENE
Synonyms
ALLYLETHYLENE;PENTADIENE-1,4;1,4-PENTADIENE;DIVINYLMETHANE;Penta-1,4-diene;CH2=CHCH2CH=CH2;1,4-Pentadiene 99%;1,4-Pentadiene,98+%;1,4-PENTADIENE 99+%;PENTADIENE-1,4: TECH.
CBNumber:
CB6782290
Molecular Formula:
C5H8
Formula Weight:
68.12
MOL File:
591-93-5.mol

1,4-PENTADIENE Properties

Melting point:
-148 °C
Boiling point:
26 °C(lit.)
Density 
0.659 g/mL at 25 °C(lit.)
vapor pressure 
11.91 psi ( 20 °C)
refractive index 
n20/D 1.389(lit.)
Flash point:
40 °F
storage temp. 
0-6°C
solubility 
Soluble in acetone, alcohol, benzene, and ether (Weast, 1986)
form 
Liquid or gas
pka
>14 (Schwarzenbach et al., 1993)
form 
Liquid
color 
Clear colorless
Water Solubility 
558 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966)
BRN 
1696934
Henry's Law Constant
0.120 at 25 °C (Hine and Mookerjee, 1975)
Stability:
Stable. Highly flammable. Note low boiling point and low flash point. Incompatible with strong oxidizing agents.
CAS DataBase Reference
591-93-5(CAS DataBase Reference)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F+,Xn
Risk Statements  12-65
Safety Statements  16-23-62
RIDADR  UN 3295 3/PG 1
WGK Germany  3
HazardClass  3.1
PackingGroup  II
HS Code  29012900
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H224 Extremely flammable liquid and vapour Flammable liquids Category 1 Danger
H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P331 Do NOT induce vomiting.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

1,4-PENTADIENE price More Price(2)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich P4607 1,4-Pentadiene 99% 591-93-5 1g $36.3 2018-11-13 Buy
Sigma-Aldrich P4607 1,4-Pentadiene 99% 591-93-5 5g $114 2018-11-13 Buy

1,4-PENTADIENE Chemical Properties,Uses,Production

Chemical Properties

colourless liquid

General Description

A colorless liquid. Less dense than water and insoluble in water. Hence floats on water.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

1,4-PENTADIENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release gaseous hydrogen. Can undergo exothermic polymerization reactions in the presence of various catalysts (such as acids) or initiators. May undergo autoxidation upon exposure to the air to form explosive peroxides. Violent explosions have occurred at low temperatures in ammonia synthesis gas units. These explosions have been traced to the decomposition of addition products between dienes such as this one and oxides of nitrogen [Bretherick, 1995].

Health Hazard

Vapor may cause dizziness or suffocation. Contact may irritate skin and eyes.

Purification Methods

Distil it from NaBH4. Purify it by preparative gas chromatography or distillation and stabilize it with 0.1% of 2,6-di-tert-butyl-p-cresol. [Reimann et al. J Am Chem Soc 108 5527 1986, Beilstein 1 IV 998.]

1,4-PENTADIENE Preparation Products And Raw materials

Raw materials

Preparation Products


1,4-PENTADIENE Suppliers

Global( 32)Suppliers
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Mainchem Co., Ltd.
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Thermo Fisher Scientific 800-810-5118
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1,4-PENTADIENE Spectrum


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