- Ethylacetylene, inhibited
A colorless gas with a garlic odor.
Used as a fuel and to produce other chemicals.
Registry Numbers and Inventories.
Swiss Giftliste 1
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
1390 (25 C)
Vapor density (air=1)
0.669 g/cm3 (0 C)
Solubility in water
23.62 g/s2 (-32 C)
1.3962 (20 C)
Partition coefficient, pKow
Heat of vaporization
Heat of combustion
Hazards and Protection.
Keep separated from incompatible substances.
Handle in accordance with all current regulations and standards. Subject to storage regulations: U.S. OSHA 29 CFR 1910.101. Grounding and bonding required.
Wear appropriate protective gloves, clothing and goggles. Always wear thermal protective clothing when handling refrigerated/cryogenic liquids.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
May react vigorously with strong oxidizing agents May react exothermically with reducing agents to release hydrogen gas.
Thermal decomposition products: oxides of carbon.
Upper exp. limit, %
Lower exp. limit, %
Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. May ignite spontaneously in air.
Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Containers may explode when heated.
Fire may produce irritating and/or toxic gases.
Stimulants such as epinephrine may induce ventricular fibrillation.
No information of adverse effects.
Nausea, vomiting, symptoms of drunkenness, suffocation, convulsions, coma.
May cause irritation.
If adverse effects occur, remove to uncontaminated area. Give artificial respiration if not breathing. If breathing is difficult, oxygen should be administered by qualified personnel. Get immediate medical attention.
Vapors may cause dizziness or asphyxiation without warning. May be toxic if inhaled at high concentrations.
Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
Flush with running water for at least 20 minutes.