Chemical of the Week Part 2 - Propane

Hazard Profile

Chemical Name and Pseudonyms

Propane , Dimethyl methane, n-propane, LPG, 74-98-6

UN Number

1075, 1978

Chemical Formula

CH₃CH₂CH₃

Hazards

Liquified, flammable gas

PPE Considerations

SFPC with SCBA

Fire Fighting Considerations

CO ₂, dry chemical

Decontamination

Ventilation

Detection and Monitoring

Colormetric, electrochemical sensor, PID IP = 11.07 ev, spectroscopy

Chemical and Physical Properties

Physical State

Colorless odorless gas with odorant added for most applications

Vapor Pressure

8.4 ATM

Boiling Point

~44^oF

Vapor Density

~4.4

Specific Gravity

~1.55

Miscibility

Insoluble in water

Flash Point

-

LEL/UEL

2.1% / 9.5%

Autoignition Temp

842^oF

pH

-

Toxicity

IDLH

2100 ppm

PEL/REL/STEL

1000 ppm/1000 ppm/1000 ppm

LD50

-

LC50

~20,000 ppm

Radioactive (Yes/No)

No

Medical

Toxicological Considerations

Asphyxiant gas 

Signs/Symptoms of Exposure

Respiratory symptoms, frostbite if contact with liquid chest tightness, CNS

Medical Treatment

Fresh air and treat symptomatically

Other Information

Strong oxidizers

Chemical Structure