https://wiki.guldforum.se/w/index.php?action=history&feed=atom&title=Kaliumsulfid
Kaliumsulfid - Versionshistorik
2026-09-28T13:06:21Z
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https://wiki.guldforum.se/w/index.php?title=Kaliumsulfid&diff=13128&oldid=prev
Dan Olsson den 3 mars 2013 kl. 19.20
2013-03-03T19:20:38Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Äldre version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versionen från 3 mars 2013 kl. 15.20</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Kategori:Kaliumföreningar]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Kategori:Kaliumföreningar]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Kategori:Sulfider]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Kategori:Sulfider]]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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><del style="font-weight: bold; text-decoration: none;">[[ar:كبريتيد البوتاسيوم]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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><del style="font-weight: bold; text-decoration: none;">[[ca:Sulfur de potassi]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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><del style="font-weight: bold; text-decoration: none;">[[cs:Sulfid draselný]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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><del style="font-weight: bold; text-decoration: none;">[[de:Kaliumsulfid]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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><del style="font-weight: bold; text-decoration: none;">[[fa:پتاسیم سولفید]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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><del style="font-weight: bold; text-decoration: none;">[[fr:Sulfure de potassium]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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><del style="font-weight: bold; text-decoration: none;">[[zh:硫化钾]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
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Dan Olsson
https://wiki.guldforum.se/w/index.php?title=Kaliumsulfid&diff=10010&oldid=prev
Dan Olsson: 1 version
2013-02-25T00:11:38Z
<p>1 version</p>
<p><b>Ny sida</b></p><div>{{Kemibox<br />
|Vardagligt namn = Kaliumsulfid<br />
|Bild = Potassium-sulfide-unit-cell-3D-ionic.png<br />
|Bildtext = Kristallstruktur<br />
|Bildbredd = <br />
|Bild2 = <br />
|Bild2text = <br />
|Systematiskt namn = Kaliumsulfid<br />
|Övriga namn = Dikaliumsulfid <br> </br> Dikaliummonosulfid <br> </br> Kaliummonosulfid<br />
|Kemisk formel = [[kalium|K]]<sub>2</sub>[[svavel|S]]<br />
|Utseende = Färglösa kristaller<br />
|CAS-nummer = 1312-73-8<br />
|SMILES = <br />
|Molmassa = 110,262<br />
|Densitet = 1,8<br />
|LöslighetOrd = omvandlas till [[kaliumvätesulfid|KSH]] och [[kaliumhydroxid|KOH]]<br />
|LöslighetTemp = <br />
|Smältpunkt = 840<br />
|Smältextra = <br />
|Kokpunkt = <br />
|Kokextra = söderdelas<br />
|Huvudfara = <br />
|NFPA704 = {{NFPA 704|Hälsa= |Eldfarlighet= |Reaktivitet= |Andra= }}<br />
|LD50 = <br />
|}}<br />
<br />
'''Kaliumsulfid''' är en [[kemisk förening]] med [[kemisk formel|formeln]] [[kalium|K]]<sub>2</sub>[[svavel|S]]. Denna färglösa [[fast form|solid]] påträffas sällan då ämnet raskt reagerar med vatten; en [[kemisk reaktion|reaktion]] som ger [[kaliumvätesulfid]] (KSH) och [[kaliumhydroxid]] (KOH).<br />
<br />
==Struktur==<br />
Kaliumsulfid antar [[antifluoritstruktur]], vilket betyder att de små K<sup>+</sup>-jonerna upptar de tetrahedrala (F<sup>-</sup>) platserna i [[fluorit]], och de större S<sup>2-</sup>-jonerna upptar de åttakoordinerade Ca<sup>2+</sup>-platserna. [[Litiumsulfid]] (Li<sub>2</sub>S), [[natriumsulfid]] (Na<sub>2</sub>S) och [[rubidiumsulfid]] (Rb<sub>2</sub>S) [[kristallisation|kristalliserar]] sig på samma sätt.<br />
<br />
==Tillverkning och reaktioner==<br />
K<sub>2</sub>S uppstår från reaktionen av kalium och svavel. I laboratoriet utförs denna syntes vanligtvis genom att kombinera en lösning av kalium i vattenfri ammoniak med rent svavel.<br />
<br />
Detta salt innehåller den starkt [[bas (kemi)|basiska]] anjonen S<sup>2−</sup>, som fullständigt [[hydrolys]]eras i vatten enligt följande reaktionsformel:<br />
:K<sub>2</sub>S + H<sub>2</sub>O → KOH + KSH<br />
Denna reaktion är dock inkonsekvent eftersom blandningen av SH<sup>−</sup> och OH<sup>−</sup> beter sig som en källa till S<sup>2−</sup>. Andra alkalimetallsulfider beter sig på samma sätt.<br />
<br />
==Användningsområden==<br />
Kaliumsulfider bildas när [[krut]] förbränns och är viktiga [[intermediat]] i många [[pyroteknik|pyrotekniska]] effekter, såsom [[senko hanabi]] och vissa glitterprodukter.<br />
<br />
==Se även==<br />
*[[Natriumsulfid]]<br />
*[[Sulfid]]<br />
<br />
==Källor==<br />
{{enwp|url=http://en.wikipedia.org/w/index.php?title=Potassium_sulfide&oldid=346580628|artikel=Potassium sulfide|datum=26 februari 2010}}<br />
<br />
[[Kategori:Kaliumföreningar]]<br />
[[Kategori:Sulfider]]<br />
<br />
[[ar:كبريتيد البوتاسيوم]]<br />
[[ca:Sulfur de potassi]]<br />
[[cs:Sulfid draselný]]<br />
[[de:Kaliumsulfid]]<br />
[[en:Potassium sulfide]]<br />
[[fa:پتاسیم سولفید]]<br />
[[fr:Sulfure de potassium]]<br />
[[it:Solfuro di potassio]]<br />
[[lv:Kālija sulfīds]]<br />
[[hu:Kálium-szulfid]]<br />
[[nl:Kaliumsulfide]]<br />
[[ja:硫化カリウム]]<br />
[[pl:Siarczek potasu]]<br />
[[pt:Sulfeto de potássio]]<br />
[[ru:Сульфид калия]]<br />
[[simple:Potassium sulfide]]<br />
[[sr:Kalijum sulfid]]<br />
[[fi:Kaliumsulfidi]]<br />
[[zh:硫化钾]]</div>
Dan Olsson