https://www.sciencemadness.org/smwiki/index.php?title=Sodium_persulfate&feed=atom&action=history
Sodium persulfate - Revision history
2024-03-28T11:33:08Z
Revision history for this page on the wiki
MediaWiki 1.25.1
https://www.sciencemadness.org/smwiki/index.php?title=Sodium_persulfate&diff=14950&oldid=prev
Ave369: /* Chemical */
2023-03-24T08:55:04Z
<p><span dir="auto"><span class="autocomment">Chemical</span></span></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 08:55, 24 March 2023</td>
</tr><tr><td colspan="2" class="diff-lineno" id="L116" >Line 116:</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>===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="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>Sodium persulfate is an oxidizer. It is a common oxidizing agent in Elbs persulfate oxidation or Boyland–Sims oxidation.</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>Sodium persulfate is an oxidizer. It is a common oxidizing agent in Elbs persulfate oxidation or Boyland–Sims oxidation.</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 style="font-weight: bold; text-decoration: none;"></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><ins style="font-weight: bold; text-decoration: none;">Heating it in solution to 80-90 Celsius for 2-3 minutes in presence of MnO<sub>2</sub> leads to a decomposition reaction catalyzed by manganese dioxide:</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><ins style="font-weight: bold; text-decoration: none;"></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><ins style="font-weight: bold; text-decoration: none;">:2 Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub> + 2H<sub>2</sub>O → 4 NaHSO<sub>4</sub> + O<sub>2</sub></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><ins style="font-weight: bold; text-decoration: none;"></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><ins style="font-weight: bold; text-decoration: none;">This reaction can be used as a qualitative test for the peroxodisulfate anion: just heat it with MnO<sub>2</sub> and check the pH with a test strip. Low pH means positive test.</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>
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Ave369
https://www.sciencemadness.org/smwiki/index.php?title=Sodium_persulfate&diff=11698&oldid=prev
Mabus at 14:05, 4 July 2019
2019-07-04T14:05:32Z
<p></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 14:05, 4 July 2019</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>Sodium persulfate is an oxidizer.</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>Sodium persulfate is an oxidizer<ins class="diffchange diffchange-inline">. It is a common oxidizing agent in Elbs persulfate oxidation or Boyland–Sims oxidation</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>===Physical===</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>===Physical===</div></td></tr>
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Mabus
https://www.sciencemadness.org/smwiki/index.php?title=Sodium_persulfate&diff=9527&oldid=prev
Mabus at 17:00, 29 August 2018
2018-08-29T17:00:41Z
<p></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 17:00, 29 August 2018</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>| OtherNames = Sodium peroxodisulfate<br>Sodium peroxodisulphate<br>Sodium peroxydisulphate</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>| OtherNames = Sodium peroxodisulfate<br>Sodium peroxodisulphate<br>Sodium peroxydisulphate</div></td></tr>
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Mabus
https://www.sciencemadness.org/smwiki/index.php?title=Sodium_persulfate&diff=9297&oldid=prev
Mabus at 18:32, 2 August 2018
2018-08-02T18:32:54Z
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Mabus
https://www.sciencemadness.org/smwiki/index.php?title=Sodium_persulfate&diff=9292&oldid=prev
Mabus: Created page with "{{Chembox | Name = Sodium persulfate | Reference = | IUPACName = Sodium peroxydisulfate | PIN = | SystematicName = | OtherNames = Sodium peroxodisulfate<br>Sodium peroxodisulp..."
2018-08-02T16:08:20Z
<p>Created page with "{{Chembox | Name = Sodium persulfate | Reference = | IUPACName = Sodium peroxydisulfate | PIN = | SystematicName = | OtherNames = Sodium peroxodisulfate<br>Sodium peroxodisulp..."</p>
<p><b>New page</b></p><div>{{Chembox<br />
| Name = Sodium persulfate<br />
| Reference =<br />
| IUPACName = Sodium peroxydisulfate<br />
| PIN =<br />
| SystematicName =<br />
| OtherNames = Sodium peroxodisulfate<br>Sodium peroxodisulphate<br>Sodium peroxydisulphate<br />
<!-- Images --><br />
| ImageFile = <br />
| ImageSize = <br />
| ImageAlt = <br />
| ImageName = <br />
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<!-- Sections --><br />
| Section1 = {{Chembox Identifiers<br />
| 3DMet = <br />
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| SMILES = <br />
}}<br />
| Section2 = {{Chembox Properties<br />
| AtmosphericOHRateConstant = <br />
| Appearance = White solid<br />
| BoilingPt = <br />
| BoilingPtC = <br />
| BoilingPt_ref = <br />
| BoilingPt_notes = Decomposes<br />
| Density = 2.59 g/cm<sup>3</sup><br>(Loose bulk density: 1.12 g/cm<sup>3</sup>)<br />
| Formula = Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub><br />
| HenryConstant = <br />
| LogP = <br />
| MolarMass = 238.10 g/mol<br />
| MeltingPt = <br />
| MeltingPtC = 180<br />
| MeltingPt_ref = <br />
| MeltingPt_notes = (decomposes)<br />
| Odor = Odorless<br />
| pKa = <br />
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| Solubility = 55.6 g/100 ml (20 °C)<br />
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| Section6 = {{Chembox Hazards<br />
| AutoignitionPt = Non-flammable<br />
| ExploLimits = Non-explosive<br />
| ExternalMSDS = [https://www.docdroid.net/SfeHLp8/sodium-persulfate-sa.pdf Sigma-Aldrich]<br />
| FlashPt = Non-flammable<br />
| LD50 = 920 mg/kg (rat, female, oral)<br>930 mg/kg (rat, male, oral)<br />
| LC50 = <br />
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'''Sodium persulfate''' is the chemical compound with the formula '''Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub>''', the sodium salt of [[peroxydisulfuric acid]]. It is almost non-[[hygroscopy|hygroscopic]] and has good shelf-life.<br />
<br />
Sodium persulfate is preferred by many chemists over other persulfate salts, as it has good solubility in water and long shelf-life, while also having better performance than other persulfate salts.<br />
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==Properties==<br />
===Chemical===<br />
Sodium persulfate is an oxidizer.<br />
<br />
===Physical===<br />
Sodium persulfate is a white solid, soluble in water.<br />
<br />
==Availability==<br />
Sodium persulfate can be bought from various electronic shops, as etching powder for zinc and printed circuit boards, as well as for pickling of copper and some other metals.<br />
<br />
==Preparation==<br />
The salt is prepared by the electrolytic oxidation of [[sodium bisulfate]]:<br />
<br />
:2 NaHSO<sub>4</sub> → Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub> + H<sub>2</sub><br />
<br />
Oxidation is conducted at a [[platinum]] anode.<br />
<br />
==Projects==<br />
*PCB etchant<br />
*Make permanganates<br />
*Make [[benzaldehyde]] from [[benzyl alcohol]]<br />
*Elbs persulfate oxidation<br />
*Boyland–Sims oxidation<br />
<br />
==Handling==<br />
===Safety===<br />
Sodium persulfate is an oxidizer and forms combustible mixtures with organic materials such as paper.<br />
<br />
===Storage===<br />
In closed plastic or glass bottles.<br />
<br />
===Disposal===<br />
Can be neutralized by heating it, which causes it to decompose.<br />
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==References==<br />
<references/><br />
===Relevant Sciencemadness threads===<br />
*[http://www.sciencemadness.org/talk/viewthread.php?tid=10137 Sodium Persulphate from Ammonium Persulphate]<br />
*[http://www.sciencemadness.org/talk/viewthread.php?tid=17732 Preparation of Sodium persulfate]<br />
*[http://www.sciencemadness.org/talk/viewthread.php?tid=8113 Preparing Na2S2O8]<br />
*[http://www.sciencemadness.org/talk/viewthread.php?tid=30694 Would Persulfate adequately oxidize bromide?]<br />
<br />
[[Category:Chemical compounds]]<br />
[[Category:Inorganic compounds]]<br />
[[Category:Sodium compounds]]<br />
[[Category:Persulfates]]<br />
[[Category:Oxidizing agents]]<br />
[[Category:Materials that react with water]]</div>
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