Nitric oxide
- NO
- CAS Number 10102-43-9
- UN1660 (gas)
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Liquid / Gas Volumes
Calculate a liquid or gas volume or a mass
Liquid Phase
At boiling point at 1.013 bar
Gas Phase
In standard conditions (1,013 bar, 15°C)
Physical Properties
Molecule phase diagram showing the transition phases between solid, liquid and gas as a function of temperature and pressure
-
- Molecular weight 30.006 g/mol
- Content in dry air 0.03 ppm
-
Critical Point
- Temperature -93.00 °C
- Pressure 64.8 bar
- Density 517.35 kg/m³
-
Triple Point
- Temperature -163.65 °C
- Pressure 2.189E-1 bar
Pressure 1.013 bar
| Latent heat of fusion (at melting point) | 76.684 kJ/kg |
| Melting point | - 161 °C |
Pressure 1.013 bar
| Boiling point | - 151.77 °C |
| Latent heat of vaporization (at boiling point) | 450.877 kJ/kg |
| Liquid density (at boiling point) | 1280.84 kg/m3 |
| Gas/(liquid at boiling point) equivalent | 955.71 vol/vol |
| Specific gravity | 1.04 |
| Thermal conductivity | 23.703 mW/(m.K) |
| Viscosity | 1.7804E-4 Po |
| Gas/(liquid at boiling point) equivalent | 955.71 vol/vol |
| Solubility in water | 4.163E-5 mol/mol |
| Specific gravity | 1.04 |
| Thermal conductivity | 24.859 mW/(m.K) |
| Viscosity | 1.8603E-4 Po |
| Gas/(liquid at boiling point) equivalent | 955.71 vol/vol |
| Solubility in water | 3.477E-5 mol/mol |
| Specific gravity | 1.04 |
| Thermal conductivity | 25.622 mW/(m.K) |
| Viscosity | 1.9126E-4 Po |
Applications
Examples of uses of this molecule in Industry and Healthcare
Hospital care
Nitric oxide is used in ressucitation
Laboratories & Research Centers
Nitric oxide is used in calibration gas mixtures for petrochemical industry, environmental emission monitoring, industrial hygiene monitors and trace impurity analyzers.
Safety & Compatibility
GHS03
Oxidising
GHS04
Gas under pressure
GHS05
Corrosive
GHS06
Acute Toxicity
Threshold of toxicity
| ILV-8h EU (at Patm and 293.15 K) | 2.5 mg/m3 or 2 ppm |
| PEL USA OSHA (vol) | 25 ppm |
| VLEP 8h France (at Patm and 293.15 K) | 2.5 mg/m3 or 2 ppm |
Odor
Slightly irritating
Metals
| Aluminium | Not recommended |
| Brass |
Risk of stress corrosion cracking
Not recommended
|
| Monel | No data |
| Copper | No data |
| Ferritic Steel | Acceptable |
| Stainless steel | Acceptable |
| Zinc | No data |
| Titanium | No data |
Plastics
| Polytetrafluoroethylene |
Risk of release of toxic vapor in extreme conditions (elevated temperature)
Acceptable
|
| Polychlorotrifluoroethylene |
Risk of release of toxic vapor in extreme conditions (elevated temperature)
Acceptable
|
| Polyvinylidene fluoride |
Risk of release of toxic vapor in extreme conditions (elevated temperature)
Acceptable
|
| Polyvinyl chloride |
risk of explosion and fire
Not recommended
|
| Ethylene tetrafluoroethylene | No data |
| Polycarbonate | No data |
| Polyamide |
Risk of explosion and fire and significant loss of mass
Not recommended
|
| Polypropylene |
Risk of explosion and fire
Not recommended
|
Elastomers
| Buthyl (isobutene- isoprene) rubber |
Significant loss of mass; risk of explosion and fire
Not recommended
|
| Nitrile rubber NBR |
Significant loss of mass; risk of explosion and fire
Not recommended
|
| Chloroprene |
Significant loss of mass, risk of explosion and fire and release of toxic vapor in extreme conditions (elevated temperature)
Not recommended
|
| Chlorofluorocarbons | No data |
| Silicone |
Risk of explosion and fire
Not recommended
|
| Perfluoroelastomers |
Risk of release of toxic vapor in extreme conditions (elevated temperature)
Acceptable
|
| Fluoroelastomers |
Risk of release of toxic vapor in extreme conditions (elevated temperature)
Acceptable
|
| Neoprene | No data |
| Polyurethane |
risk of release of toxic vapor in extreme conditions (elevated temperature)
Acceptable
|
| Ethylene-Propylene |
Significant loss of mass; risk of explosion and fire
Not recommended
|
Lubricants
| Hydrocarbon based lubricant |
Contamination of the material; risk of explosion and fire
Not recommended
|
| Fluorocarbon based lubricant |
Contamination of the material and risk of release of toxic vapor in extreme conditions (elevated temperature)
Not recommended
|
Materials compatibility
Recommendations : Air Liquide has gathered data on the compatibility of gases with materials to assist you in evaluating which materials to use for a gas system. Although the information has been compiled from what Air Liquide believes are reliable sources (International Standards: Compatibility of cylinder and valve materials with gas content; Part 1- Metallic materials: ISO11114-1 (March 2012), Part 2 - Non-metallic materials: ISO11114-2 (April 2013), it must be used with extreme caution and engineering judgement. No raw data such as these can cover all conditions of concentration, temperature, humidity, impurities and aeration. It is therefore recommended that this table is only used to identify possible materials for applications at high pressure and ambient temperature. Extensive investigation and testing under the specific conditions of use need to be carried out to validate a material selection for a given application. Contact the regional Air Liquide team for expertise service.
Learn More
More information
Nitric oxide is a major air pollutant, mainly rejected by premises heating systems, cars, thermal power plants and incineration plants.