Acetylene
|
CAS
74-86-2 |
C2H2
|
RTECS
AO9600000 |
Synonyms & Trade Names
Ethine, Ethyne [Note: A compressed gas used in the welding & cutting of
metals.]
|
DOT ID & Guide
1001 116 |
Exposure
Limits
|
NIOSH REL: C 2500 ppm (2662
mg/m3) |
|
OSHA PEL: none |
IDLH
N.D. |
Conversion
1 ppm = 1.06 mg/m3
|
Physical Description
Colorless gas with a faint, ethereal odor.
[Note: Commercial grade has a garlic-like odor. Shipped under pressure
dissolved in acetone.] |
MW: 26.0
|
BP:
Sublimes
|
FRZ:
-119°F (Sublimes)
|
Sol: 2%
|
VP: 44.2
atm
|
IP: 11.40
eV
|
RGasD:
0.91
|
|
Fl.P: NA
(Gas)
|
UEL: 100%
|
LEL: 2.5%
|
|
| Flammable
Gas |
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).]
|
Personal Protection & Sanitation
Skin: Frostbite
Eyes: Frostbite
Wash skin: No recommendation
Remove: When wet (flammable)
Change: No recommendation
Provide: Frostbite wash
|
First Aid
Eye: Frostbite
Skin: Frostbite
Breathing: Fresh air
|
Respirator Recommendations
Not available.
|
Exposure Routes
inhalation, skin and/or eye contact (liquid)
|
Symptoms
Headache, dizziness; asphyxia; liquid:
frostbite |
Target Organs
central nervous system, respiratory
system
|
