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Product Name: TRANS-1,3-PENTADIENE

Synonyms: 1-Methylbutadiene;CH2=CHCH=CHCH3;Penta-1,3-diene;Pentadiene-1,3;piperylene,60%cisandtransisomers;Rcra waste number U186;rcrawastenumberu186;l，3-Pentadiene

CAS: 504-60-9

MF: C5H8

MW: 68.12

EINECS: 207-995-2

Product Categories:

Mol File: 504-60-9.mol

TRANS-1,3-PENTADIENE Structure

TRANS-1,3-PENTADIENE Chemical Properties

Melting point −87 °C(lit.)

Boiling point 42 °C(lit.)

density 0.683 g/mL at 25 °C(lit.)

vapor density 2.4 (vs air)

vapor pressure 6.56 psi ( 20 °C)

refractive index n20/D 1.433(lit.)

Fp <−30 °F

storage temp. Refrigerator

Stability: Stable. Incompatible with strong oxidizing agents. Very flammable - note low flash point and low boiling point.

CAS DataBase Reference 504-60-9(CAS DataBase Reference)

EPA Substance Registry System 1,3-Pentadiene (504-60-9)

Safety Information

Hazard Codes F,Xn

Risk Statements 11-65

Safety Statements 16-23-26-36-62-24/25

RIDADR UN 3295 3/PG 2

WGK Germany 3

RTECS RZ2465000

HazardClass 3.1

PackingGroup I

MSDS Information

Provider Language

SigmaAldrich English

TRANS-1,3-PENTADIENE Usage And Synthesis

Chemical Properties colourless liquid

General Description A clear colorless liquid with an acrid odor. Flash point of -20°F. Boiling point 5°F. A dangerous fire risk. Vapors are irritating to the eyes and respiratory system. Subject to polymerization if heated or contaminated. If the polymerization takes place inside a container, the container may violently rupture. Insoluble in water. Used to make intermediates and polymers.

Air & Water Reactions Highly flammable. Insoluble in water.

Reactivity Profile TRANS-1,3-PENTADIENE 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. May undergo autoxidation upon exposure to the air to form explosive peroxides. Violent explosions at low temperatures in ammonia synthesis units have been traced to the addition products of dienes and nitrogen dioxide [Bretherick, 5th Ed., 1995].

Health Hazard Vapors may cause dizziness or suffocation; contact may irritate skin and eyes.

TRANS-1,3-PENTADIENE Preparation Products And Raw materials