Allene

Toxic Gases & Vapors -> Simple Asphyxiants

Flammable agents - 4th degree

1.787

0.677 @25 °C

GAS

COLORLESS

-34.5 °C @ 760 MM HG

-34.5 °C @760 [mm Hg]

-136 °C

-136 °C

5430.0 [mmHg]

5990 [mm Hg] @20 °C

Propadiene, stabilized appears as a colorless flammable gas. May become unstable. Not toxic but asphyxiation may occur because of displacement of oxygen. Under prolonged exposure to fire or heat the containers may rupture violently and rocket.

This chemical does not meet GHS hazard criteria for 0.3% (1 of 317) of reports.

Danger

H220 (87.7%): Extremely flammable gas [Danger Flammable gases]

P203, P210, P222, P280, P377, P381, P403, and P410+P403 (click each P-code to see the statement)

Aggregated GHS information provided per 317 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Chemical: 1,2-Propadiene

1,2-Propadiene is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,2-Propadiene are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

REACH registered substance: Allene (EC: 207-335-3)

1,2-propadiene: Does not have an individual approval but may be used under an appropriate group standard

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

Excerpt from ERG Guide 116 [Gases - Flammable (Unstable); polymerization hazard]:

· EXTREMELY FLAMMABLE.

Excerpt from ERG Guide 116 [Gases - Flammable (Unstable); polymerization hazard]:

· Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas.

Used as a chemical intermediate, a fuel gas for welding when mixed with propyne, and a monomer; [HSDB]

Gas Welding and Cutting [Category: Weld]

CHAIN-TRANSFER REAGENT IN PRODN OF POLYBUTADIENE; FUEL GAS FOR METAL-WORKING INDUSTRY (MIXT WITH PROPYNE); MONOMER FOR ALLENE POLYMERS (POSSIBLE USE)

CHEM INT IN PRODN OF ITS ISOMER, PROPYNE, METHYLENENORBORNENE, IN HYDROBORATION REACTIONS (POSSIBLE USE)

(1977) No Data

(1979) No Data

(1977) No Data

(1979) No Data

2023: 500,000 - <1,000,000 lb

(1977) MORE THAN 2.72X10+6 G-MIXT WITH PROPYNE

(1979) MORE THAN 2.72X10+6 G-MIXT WITH PROPYNE

PYROLYSIS OF PROPYLENE, ISOBUTYLENE OR A NAPHTHA/GAS OIL MIXT FOLLOWED BY SEPN, EG, BY NAPHTHA ADSORPTION; DEHYDROHALOGENATION OF PROPYLENE DIBROMIDE WITH SODIUM HYDROXIDE FOLLOWEDBY SEPN; CRACKING OF T-BUTYL ALCOHOL WITH STEAM AS A DILUENT FOLLOWED BY SEPN

A) ACTION OF ZINC DUST ON 2,3-DICHLOROPROPENE; B) PYROLYSIS OF ISOBUTYLENE; C) ELECTROLYSIS OF POTASSIUM ITACONATE.

Wholesale and Retail Trade

1,2-Propadiene: ACTIVE