Propane
AKA: N-Propane, Dimethylmethane, Propyl hydride, 74-98-6, Propyldihydride, Purifrigor p 3.5, HC 290, R 290, INS NO.944
Synthetic
Not Clean
Propane appears as a colorless gas with a faint petroleum-like odor. It is shipped as a liquefied gas under its vapor pressure. For transportation it may be stenched. Contact with the unconfined liquid can cause frostbite by evaporative cooling. Easily ignited. The vapors are heavier than air and a flame can flash back to the source of leak very easily. The leak may be either a liquid or vapor leak. The vapors can asphyxiate by the displacement of air. Under prolonged exposure to fire or heat the containers may rupture violently and rocket.
Solubility 0.01 % (NIOSH, 2024)
Formula
C3H8
Mol. Weight
44.10
CAS #
74-98-6
Form
Liquid
State
Propane appears as a colorless gas with a faint petroleum-like odor. It is shipped as a liquefied gas under its vapor pressure. For transportation it may be stenched. Contact with the unconfined liqui
Functions
Propellant
Dispenses Product
Antioxidant Protection
Reduces Inflammation
Brightens Skin
Propels product from container
Traditional Use
Developed in the late 19th century as a refined petroleum byproduct. Used in cosmetics primarily as a propellant in aerosol sprays and aerosol-based products since the mid-20th century.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR