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Other Classes -> Aliphatics, Unsaturated

Flammable agents - 4th degree

Ethyl acetylene, stabilized appears as a colorless gas. Denser than air. Prolonged exposure to intense heat may cause the containers to rupture violently and rocket.

Liquid; Gas Vapor

Colorless gas; [CAMEO] Odor of garlic; [Matheson Tri-Gas MSDS]

This chemical does not meet GHS hazard criteria for 3% (5 of 164) of reports.

Danger

H220 (97%): 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 164 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Chemical: 1-Butyne

1-Butyne is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1-Butyne 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)

1-Butyne: 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.

Highly flammable and forms explosive mixtures with air; Heat may cause explosive polymerization; [CAMEO] Extremely flammable and forms explosive mixtures with air; May polymerize; Inhalation may cause difficulty breathing, suffocation, convulsions, and coma; [Matheson Tri-Gas MSDS] Rapidly expanding gases can cause frostbite; A simple asphyxiant; [Airgas MSDS] Ethylacetylene, stabilized (UN2452) has warning of explosive polymerization; [ERG 2016] See Acetylene.

ETHYL ACETYLENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic polymerization.

Ethylacetylene, stabilized

UN2452

Div 2.1 Flammable gas (49 eCFR § 173.115)

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

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

General First Aid:

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

Immediate precautionary measure

Ethyl acetylene

1

10000

Flammable chemical that can be released at a facility.

Petroleum Refineries

1-Butyne: ACTIVE