https://www.sciencemadness.org/smwiki/index.php?title=Nitric_oxide&feed=atom&action=history
Nitric oxide - Revision history
2024-03-28T18:11:22Z
Revision history for this page on the wiki
MediaWiki 1.25.1
https://www.sciencemadness.org/smwiki/index.php?title=Nitric_oxide&diff=13593&oldid=prev
Mabus at 21:08, 27 October 2020
2020-10-27T21:08:10Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 21:08, 27 October 2020</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| pKb =  </div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| pKb =  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| Solubility = 0.0098 g/100 ml (0 °C)<br>0.0056 g/100 ml (20 °C)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| Solubility = 0.0098 g/100 ml (0 °C)<br>0.0056 g/100 ml (20 °C)</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>| SolubleOther = Soluble in [[carbon disulfide]]</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| SolubleOther = Soluble in [[carbon disulfide<ins class="diffchange diffchange-inline">]]. [[ethanol</ins>]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| Solubility1 = 26.6 ml/100 ml</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| Solubility1 = 26.6 ml/100 ml</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| Solvent1 = ethanol</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| Solvent1 = ethanol</div></td></tr>
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Mabus
https://www.sciencemadness.org/smwiki/index.php?title=Nitric_oxide&diff=11324&oldid=prev
Mabus at 20:30, 1 June 2019
2019-06-01T20:30:03Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 20:30, 1 June 2019</td>
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Mabus
https://www.sciencemadness.org/smwiki/index.php?title=Nitric_oxide&diff=9679&oldid=prev
Mabus at 19:09, 2 October 2018
2018-10-02T19:09:20Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 19:09, 2 October 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="L125" >Line 125:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Availability==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Availability==</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Nitric oxide is sold by chemical suppliers in gas cylinders, though it's difficult for the amateur chemist to acquire <del class="diffchange diffchange-inline">them</del>.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Nitric oxide is sold by chemical suppliers in gas cylinders, though it's difficult for the amateur chemist to acquire <ins class="diffchange diffchange-inline">this compound</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Preparation==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Preparation==</div></td></tr>
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Mabus
https://www.sciencemadness.org/smwiki/index.php?title=Nitric_oxide&diff=8040&oldid=prev
Mabus at 17:47, 13 December 2017
2017-12-13T17:47:02Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 17:47, 13 December 2017</td>
</tr><tr><td colspan="2" class="diff-lineno" id="L115" >Line 115:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Properties==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Properties==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>===Chemical===</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>===Chemical===</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Nitric oxide oxidizes in air to give nitrogen dioxide.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Nitric oxide oxidizes in air to give <ins class="diffchange diffchange-inline">[[</ins>nitrogen dioxide<ins class="diffchange diffchange-inline">]]</ins>.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">: NO + ½ O<sub>2</sub> → NO<sub>2</sub></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Nitric oxide can also react directly with [[sodium methoxide]], forming [[sodium formate]] and [[nitrous oxide]].</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Nitric oxide can also react directly with [[sodium methoxide]], forming [[sodium formate]] and [[nitrous oxide]].</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="L134" >Line 134:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:8 HNO<sub>3</sub> + 3 Cu → 3 Cu(NO<sub>3</sub>)<sub>2</sub> + 4 H<sub>2</sub>O + 2 ·NO</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:8 HNO<sub>3</sub> + 3 Cu → 3 Cu(NO<sub>3</sub>)<sub>2</sub> + 4 H<sub>2</sub>O + 2 ·NO</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>If this reaction occurs in the presence of air, the resulting nitric acid will react with oxygen to give the brown nitrogen dioxide.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>If this reaction occurs in the presence of air, the resulting nitric acid will react with oxygen to give the brown nitrogen dioxide<ins class="diffchange diffchange-inline">. If concentrated nitric acid is used, nitrogen dioxide will also be formed as side product</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Other routes to this compound involve [[sodium nitrite]] or [[potassium nitrite]]:</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Other routes to this compound involve [[sodium nitrite]] or [[potassium nitrite]]:</div></td></tr>
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Mabus
https://www.sciencemadness.org/smwiki/index.php?title=Nitric_oxide&diff=7442&oldid=prev
Mabus at 17:04, 7 August 2017
2017-08-07T17:04:13Z
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Mabus
https://www.sciencemadness.org/smwiki/index.php?title=Nitric_oxide&diff=7121&oldid=prev
Mabus: Created page with "{{Chembox | Name = Nitric oxide | Reference = | IUPACName = Nitric oxide | PIN = | SystematicName = | OtherNames = Mononitrogen monoxide<br>Nitrogen monooxide<br>Nitrogen mono..."
2017-07-04T19:34:32Z
<p>Created page with "{{Chembox | Name = Nitric oxide | Reference = | IUPACName = Nitric oxide | PIN = | SystematicName = | OtherNames = Mononitrogen monoxide<br>Nitrogen monooxide<br>Nitrogen mono..."</p>
<p><b>New page</b></p><div>{{Chembox<br />
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| IUPACName = Nitric oxide<br />
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| OtherNames = Mononitrogen monoxide<br>Nitrogen monooxide<br>Nitrogen monoxide<br>Nitrogen(II) oxide<br>Nitrosyl<br>Oxidonitrogen<br />
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| AtmosphericOHRateConstant = <br />
| Appearance = Colorless gas<br />
| BoilingPt = <br />
| BoilingPtC = −152<br />
| BoilingPt_ref = <br />
| BoilingPt_notes = <br />
| Density = 1.3402 g/cm<sup>3</sup><br />
| Formula = NO<br />
| HenryConstant = <br />
| LogP = <br />
| MolarMass = 30.01 g/mol<br />
| MeltingPt = <br />
| MeltingPtC = −164<br />
| MeltingPt_ref = <br />
| MeltingPt_notes = <br />
| Odor = Sharp, sweet<br />
| pKa = <br />
| pKb = <br />
| Solubility = 0.0098 g/100 ml (0 °C)<br>0.0056 g/100 ml (20 °C)<br />
| SolubleOther = Soluble in [[carbon disulfide]]<br />
| Solubility1 = 26.6 ml/100 ml<br />
| Solvent1 = ethanol<br />
| Solubility2 = 3.4 ml/100 ml<br />
| Solvent2 = sulfuric acid<br />
| VaporPressure = 26000 mmHg at 20 °C<br />
}}<br />
| Section3 = {{Chembox Structure<br />
| Coordination = <br />
| CrystalStruct = <br />
| MolShape = Linear ([[point group]] C<sub>∞''v''</sub>)<br />
}}<br />
| Section4 = {{Chembox Thermochemistry<br />
| DeltaGf = <br />
| DeltaHc = <br />
| DeltaHf = 91.29 kJ/mol<br />
| Entropy = 210.76 J·K<sup>−1</sup>·mol<sup>−1</sup><br />
| HeatCapacity = <br />
}}<br />
| Section5 = {{Chembox Explosive<br />
| ShockSens = <br />
| FrictionSens = <br />
| DetonationV = <br />
| REFactor = <br />
}}<br />
| Section6 = {{Chembox Hazards<br />
| AutoignitionPt = Non-flammable<br />
| ExploLimits = Non-explosive<br />
| ExternalMSDS = [https://www.docdroid.net/4Lj8qRP/nitric-oxide-sa.pdf.html Sigma-Aldrich]<br />
| FlashPt = Non-flammable<br />
| LD50 = <br />
| LC50 = 315 ppm (rabbit, 15 min)<br>854 ppm (rat, 4 hr)<br>320 ppm (mouse)<br />
| MainHazards = Converts to corrosive nitrogen dioxide in contact with air<br />
| NFPA-F = <br />
| NFPA-H = <br />
| NFPA-R = <br />
| NFPA-S = <br />
}}<br />
| Section7 = {{Chembox Related<br />
| OtherAnions = <br />
| OtherCations = <br />
| OtherFunction = <br />
| OtherFunction_label = <br />
| OtherCompounds = [[Nitrous oxide]]<br>[[Nitrogen dioxide]]<br>[[Dinitrogen trioxide]]<br>[[Dinitrogen tetroxide]]<br />
}}<br />
}}<br />
'''Nitric oxide''' (also known as '''nitrogen oxide''' or '''nitrogen monoxide''') is a molecular, chemical compound with chemical formula of '''·NO''' (also written as '''·NO'''). Nitric oxide is a free radical—i.e., its bonding structure includes an unpaired electron, represented by the dot (·) on the nitrogen atom.<br />
<br />
==Properties==<br />
===Chemical===<br />
Nitric oxide oxidizes in air to give nitrogen dioxide.<br />
<br />
Nitric oxide can also react directly with [[sodium methoxide]], forming [[sodium formate]] and [[nitrous oxide]].<br />
<br />
===Physical===<br />
Nitric oxide is a colorless gas, almost insoluble in water.<br />
<br />
==Availability==<br />
Nitric oxide is sold by chemical suppliers in gas cylinders, though it's difficult for the amateur chemist to acquire them.<br />
<br />
==Preparation==<br />
Nitric oxide is industrially produced by the oxidation of [[ammonia]] at 750–900 °C (usually at 850 °C) with [[platinum]] as [[catalyst]]:<br />
<br />
:4 NH<sub>3</sub> + 5 O<sub>2</sub> → 4 ·NO + 6 H<sub>2</sub>O<br />
<br />
A more accessible route involves the reduction of dilute [[nitric acid]] with [[copper]]:<br />
<br />
:8 HNO<sub>3</sub> + 3 Cu → 3 Cu(NO<sub>3</sub>)<sub>2</sub> + 4 H<sub>2</sub>O + 2 ·NO<br />
<br />
If this reaction occurs in the presence of air, the resulting nitric acid will react with oxygen to give the brown nitrogen dioxide.<br />
<br />
Other routes to this compound involve [[sodium nitrite]] or [[potassium nitrite]]:<br />
: 2 NaNO<sub>2</sub> + 2 NaI + 2 H<sub>2</sub>SO<sub>4</sub> → I<sub>2</sub> + 4 NaHSO<sub>4</sub> + 2 ·NO<br />
: 2 NaNO<sub>2</sub> + 2 FeSO<sub>4</sub> + 3 H<sub>2</sub>SO<sub>4</sub> → Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> + 2 NaHSO<sub>4</sub> + 2 H<sub>2</sub>O + 2 ·NO<br />
: 3 KNO<sub>2(l)</sub> + KNO<sub>3(l)</sub> + Cr<sub>2</sub>O<sub>3(s)</sub> → 2 K<sub>2</sub>CrO<sub>4(s)</sub> + 4 NO<sub>(g)</sub><br />
<br />
==Projects==<br />
*Make nitrous oxide<br />
*Make metal nitrosyls<br />
<br />
==Handling==<br />
===Safety===<br />
Nitric oxide will convert to nitrogen dioxide when exposed to air.<br />
<br />
===Storage===<br />
Nitric oxide tanks should be kept in a cold place, away from light and heat.<br />
<br />
===Disposal===<br />
Can be neutralized by bubbling it in a [[sodium percarbonate]] solution.<br />
<br />
==References==<br />
<references/><br />
===Relevant Sciencemadness threads===<br />
*[http://www.sciencemadness.org/talk/viewthread.php?tid=20368 Stability of liquid Nitric Oxide (NO) ?]<br />
<br />
[[Category:Chemical compounds]]<br />
[[Category:Inorganic compounds]]<br />
[[Category:Nitrogen compounds]]<br />
[[Category:Oxygen compounds]]<br />
[[Category:Oxides]]<br />
[[Category:Nitrogen oxides]]<br />
[[Category:Gases]]</div>
Mabus