Acetylene
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CAS
74-86-2
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C2H2
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RTECS
AO9600000
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Synonyms & Trade Names
Ethine, Ethyne [Note: A compressed gas used in the welding & cutting of metals.]
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DOT ID & Guide
1001 / 116
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Exposure
Limits
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NIOSH REL: C 2500 ppm (2662 mg/m3)
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OSHA PEL: none
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IDLH
N.D.
See: IDLH INDEX
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Conversion
1 ppm = 1.06 mg/m3
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Physical Description
Colorless gas with a faint, ethereal odor. [Note: Commercial grade has a garlic-like odor. Shipped under pressure dissolved in acetone.]
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MW: 26.0
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BP: Sublimes
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FRZ: -119°F (Sublimes)
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Sol: 2%
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VP: 44.2 atm
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IP: 11.40 eV
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RGasD: 0.91
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Fl.P: NA (Gas)
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UEL: 100%
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LEL: 2.5%
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Flammable Gas
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Incompatibilities & Reactivities
Zinc; oxygen & other oxidizing agents such as halogens [Note: Forms explosive acetylide compounds with copper, mercury, silver & brasses (containing more than 66% copper).]
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Measurement Methods
NIOSH Acetylene Crit. Doc.
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Frostbite
Eyes: Frostbite
Wash skin: No recommendation
Remove: When wet (flammable)
Change: No recommendation
Provide: Frostbite wash
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First Aid (See procedures)
Eye: Frostbite
Skin: Frostbite
Breathing: Fresh air
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Respirator Recommendations
Not available.
Important additional information about respirator selection
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Exposure Routes
inhalation, skin and/or eye contact (liquid)
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Symptoms
Headache, dizziness; asphyxia; liquid: frostbite
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Target Organs
central nervous system, respiratory system
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See also: INTRODUCTION
See ICSC CARD: 0089 |
