Nitrous oxide
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CAS
10024-97-2
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N2O
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RTECS
QX1350000
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Synonyms & Trade Names
Dinitrogen monoxide, Hyponitrous acid anhydride, Laughing gas
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DOT ID & Guide
1070 / 122
2201 / 122 (refrigerated liquid)
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Exposure
Limits
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NIOSH REL*: TWA 25 ppm (46 mg/m3) (TWA over the time exposed) [*Note: REL for exposure to waste anesthetic gas.]
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OSHA PEL: none
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IDLH
N.D.
See: IDLH INDEX
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Conversion
1 ppm = 1.80 mg/m3
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Physical Description
Colorless gas with a slightly sweet odor. [inhalation anesthetic] [Note: Shipped as a liquefied compressed gas.]
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MW: 44.0
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BP: -127°F
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FRZ: -132°F
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Sol(77°F): 0.1%
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VP: 51.3 atm
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IP: 12.89 eV
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RGasD: 1.53
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Fl.P: NA
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UEL: NA
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LEL: NA
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Nonflammable Gas, but supports combustion at elevated temperatures.
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Incompatibilities & Reactivities
Aluminum, boron, hydrazine, lithium hydride, phosphine, sodium
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Measurement Methods
NIOSH 3800, 6600; OSHA ID166
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Frostbite
Eyes: Frostbite
Wash skin: No recommendation
Remove: No recommendation
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
Dyspnea (breathing difficulty); drowsiness, headache; asphyxia; reproductive effects; liquid: frostbite
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Target Organs
respiratory system, central nervous system, reproductive system
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See also: INTRODUCTION
See ICSC CARD: 0067 |
