R290

Description

R290 · CAS 36427-14-2 · C3H8. UNII T75W9911L6. Boiling Point: -43.8 °F at 760 mmHg (USCG, 1999); Boiling Point: -42.1 °C at 1 atm; Boiling Point: -42 °C.

Identification

CAS Registry Number	36427-14-2
PubChem CID	6334
Molecular formula	C3H8
IUPAC name	propane
UNII (FDA)	T75W9911L6

Computed Descriptors

Molecular Weight	44.10
XLogP3	1.8
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	44.062600255
Monoisotopic Mass	44.062600255
Topological Polar Surface Area	0
Heavy Atom Count	3
Formal Charge	0

Physical & Chemical Properties

Boiling Point	-43.8 °F at 760 mmHg (USCG, 1999)
Boiling Point	-42.1 °C at 1 atm
Boiling Point	-42 °C
Boiling Point	-44 °F
Boiling Point	-42.1 °C @760 [mm Hg]
Melting Point	-305.9 °F (USCG, 1999)
Melting Point	-187.6 °C
Melting Point	-189.9 °C
Melting Point	-189.7 °C
Melting Point	-306 °F

Physical description & handling notes

• Liquid; Gas Vapor; Liquid; Gas Vapor; CBI
• Colourless gas or liquid with mild, characteristic odour
• Colorless, odorless gas. [Note: A foul-smelling odorant is often added when used for fuel purposes. Shipped as a liquefied compressed gas.]; [NIOSH] Vapor density = 1.56 (heavier than air); [HSDB]
• Liquid
• ODOURLESS COLOURLESS COMPRESSED LIQUEFIED GAS.
• Colorless, odorless gas.

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: PROPELLANT EXTRACTION_SOLVENT; PROPELLANT: Food Additives NOT SPECIFIED Not re-evaluated by JECFA, but the provisions for propane was withdrawn at CCFA47 TRS 648-JECFA 23/23 CIR / INCI: Cosmetic ingredients (Propane) -> CIR (Cosmetic Ingredient Review)

GHS Hazard Classification

Reported hazard statements	H220, H280 (39.1%), H336

Documented Uses

• Used as a fuel, solvent, refrigerant, and propellant; [Hawley]
• Petroleum Production and Refining [Category: Industry]
• Component of liquid petroleum gas for commercial and industrial usage; feedstock in thermal cracking processes used to manufacture ethylene and propylene; refrigerant in chemical refining and gas processing operations; fuel in welding and cutting operations
• Organic synthesis, household and industrial fuel, manufacture of ethylene, extractant, solvent, gas enricher, refrigerant, aerosol propellant, mixture for bubble chambers
• Used in flame control of weeds in corn, soybeans, cotton, tobacco, strawberries
• Alternative /transportation/ fuel

Synonyms

PROPANE; n-Propane; Dimethylmethane; 74-98-6; Propyl hydride; Propyldihydride; Purifrigor p 3.5; HC 290; R 290; INS NO.944; DTXSID5026386; E944; INS-944; T75W9911L6; E-944; CHEBI:32879

Frequently Asked Questions

What are the CAS number and molecular formula of R290?

CAS 36427-14-2; molecular formula C3H8; molecular weight — g/mol.

What other names is R290 known by?

PROPANE, n-Propane, Dimethylmethane, 74-98-6, Propyl hydride, Propyldihydride.

What is the regulatory status of R290?

Documented regulatory listings: FDA Substance added to food: PROPELLANT; EXTRACTION_SOLVENT; PROPELLANT: Food Additives; NOT SPECIFIED.

Is R290 classified as hazardous?

Hazard statements reported: H220, H280, H336.

What are the key physical properties of R290?

Boiling Point: -43.8 °F at 760 mmHg (USCG, 1999); Boiling Point: -42.1 °C at 1 atm; Boiling Point: -42 °C; Boiling Point: -44 °F.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.