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Propylene

Propylene structure

CAS No:
115-07-1
Formula:
C3H6
Chemical Name:
Propylene
Synonyms:
1-Propene;Propene;Methylethylene;Propylene;1-Propylene;R 1270;HC 1270;N 25;N 25 (olefin);676-63-1;33004-01-2
Categories:
Organic Chemistry > Hydrocarbons and Derivatives

Description

Propylene is a colorless gas with the molecular formula C₃H₆. It is highly flammable and has a faint odor. It has a boiling point of approximately -47.6°C, is lighter than air, and is insoluble in water but dissolves in organic solvents. It should be stored in sealed containers away from heat and ignition sources.

Propylene Basic Attributes

Molecular Weight：

42.08

Exact Mass：

42.08

EC Number：

204-062-1

HScode：

29012200

Characteristics

PSA：

XLogP3：

1.77

Appearance：

Propylene is a colorless gas with a faint petroleum like odor. It is shipped as a liquefied gas under its own vapor pressure. For transportation it may be stenched. Contact with the liquid can cause frostbite. It is easily ignited. The vapors are heavier than air. Any leak can either be liquid or vapor. It can asphyxiate by the displacement of air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. It is used to make other chemicals. Can cause explosion.

Density：

0.5 g/cm³

Melting Point：

-185 °C

Boiling Point：

-48 °C @ Press: 760 Torr

Flash Point：

-108 °C

Refractive Index：

1.3567

Water Solubility：

Solubility in water: poor

Storage Conditions：

Keep container tightly closed in a dry and well-ventilated place. Contents under pressure. Storage class (TRGS 510): Gases

Vapor Pressure：

15.4 atm ( 37.7 °C)

Vapor Density：

1.48 (vs air)

Toxicity：

Inhalation-Rat TCL0: 5000 PPM/ 6 hours/ 2 years

Flammability characteristics：

Open flame, flammable when heated; burning produces irritating smoke

Explosive limit：

11.1%

Odor：

Practically odorless; aromatic

Safety Information

Hazard category：

2.1

Transport codes：

UN 1077 2.1

wgk germany：

hazard class code：

safety instructions：

9-16-33

RTECS Number：

UC6740000

Marks：

F+

Storage features：

The warehouse is ventilated, low temperature and dry; lightly loaded and unloaded; stored separately from oxygen, air and other fuel gas cylinders

Explosive characteristics：

Open flame mixed with air, can be explosive when heated

Stability/Shelf Life：

Stable. Highly flammable. Readily forms explosive mixtures with air. Incompatible with strong oxidizing agents, strong acids, halogens.

Precautionary statement(s)：

P210, P377, P381, P403

Hazard Statements：

H220

Toxicity

Toxicity class：

practically nontoxic

Propylene Use and Manufacturing

Propylene serves as a key building block in the chemical industry, primarily utilized in the production of polypropylene, acrylonitrile, and propylene oxide. It is also a fundamental component in the manufacturing of coatings, adhesives, and synthetic rubber.

Computed Properties

Molecular Weight:42.08
XLogP3:1.4
Exact Mass:42.0469501914
Monoisotopic Mass:42.0469501914
Heavy Atom Count:3
Complexity:7.5
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Alumina

PETROLEUM ETHER

Downstream Products

2-Ethylhexanol

Epichlorohydrin

Acrylonitrile

Mesitylene

Phenol

Butanal

Glycerol

Isopropanol

Acetone

1-Butanol

Propylene Oxide

Isobutanol

Isobutyraldehyde

1,2-Dichloropropane

Acrylic acid

α-Methylstyrene

Price Analysis

Make your Propylene purchase based on the price and market insights! ECHEMI provides professional market insights with prices for you to make a better choice. Learn more on Propylene prices .

Data: 2026-10-01
Price: 9707.67Yuan/mt
Change: 0

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