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Nitrous oxide |
CAS 10024-97-2 | ||
N2O |
RTECS QX1350000 | ||
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Synonyms & Trade Names Dinitrogen monoxide, Hyponitrous acid anhydride, Laughing gas |
DOT ID & Guide 1070 122 2201 122 (refrigerated liquid) |
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Exposure
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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.] | ||
| OSHA PEL: none | |||
| IDLH N.D. See: IDLH INDEX | 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 |
BP: -127°F |
FRZ: -132°F |
Sol(77°F): 0.1% |
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VP: 51.3 atm |
IP: 12.89 eV |
RGasD: 1.53 |
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Fl.P: NA |
UEL: NA |
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 |
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Personal Protection & Sanitation (See protection) Skin: Frostbite Eyes: Frostbite Wash skin: No recommendation Remove: No recommendation Change: No recommendation Provide: Frostbite wash |
First Aid (See procedures) Eye: Frostbite Skin: Frostbite Breathing: Fresh air |
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Important additional information about respirator selection Respirator Recommendations Not available. |
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| Exposure Routes inhalation, skin and/or eye contact (liquid) | |
| 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 |