https://enciklopedija.cc/index.php?action=history&feed=atom&title=Arsen Arsen - Povijest promjena 2026-10-23T22:51:12Z Povijest promjena ove stranice na wikiju MediaWiki 1.42.3 https://enciklopedija.cc/index.php?title=Arsen&diff=666391&oldid=prev Suradnik10: Zamjena teksta - '{{(.)ječnik' u '{{HIEslovar' 2026-03-10T03:39:44Z <p>Zamjena teksta - &#039;{{(.)ječnik&#039; u &#039;{{HIEslovar&#039;</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="hr"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←Starija inačica</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Inačica od 10. ožujak 2026. u 03:39</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l27">Redak 27:</td> <td colspan="2" class="diff-lineno">Redak 27:</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>[[Arsenopirit]] je arsenov sulfid željeza (FeAsS).</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>[[Arsenopirit]] je arsenov sulfid željeza (FeAsS).</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;"><br></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;"><br></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;">wječnik</del>}}</div></td><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: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>{{<ins style="font-weight: bold; text-decoration: none;">HIEslovar</ins>}}</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;"><br></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;"><br></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>==Izvori==</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>==Izvori==</div></td></tr> </table> Suradnik10 https://enciklopedija.cc/index.php?title=Arsen&diff=508653&oldid=prev WikiSysop: bnz 2022-05-07T17:00:14Z <p>bnz</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="hr"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←Starija inačica</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Inačica od 7. svibanj 2022. u 17:00</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Redak 1:</td> <td colspan="2" class="diff-lineno">Redak 1:</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;">&lt;!--'''Arsen'''--&gt;</del>{{Kemijski_element</div></td><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: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>{{Kemijski_element</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>|ime              = arsen</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>|ime              = arsen</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>|simbol          = As</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>|simbol          = As</div></td></tr> </table> WikiSysop https://enciklopedija.cc/index.php?title=Arsen&diff=11802&oldid=prev WikiSysop: Bot: Automatski unos stranica 2021-07-23T12:39:42Z <p>Bot: Automatski unos stranica</p> <p><b>Nova stranica</b></p><div>&lt;!--&#039;&#039;&#039;Arsen&#039;&#039;&#039;--&gt;{{Kemijski_element<br /> |ime = arsen<br /> |simbol = As<br /> |redni_broj = 33<br /> |kemijska_skupina = polumetali<br /> |grupa = 15<br /> |perioda = 4<br /> |blok = p<br /> |izgled = sivkasta [[Krutine|krutina]]&lt;br&gt;[[Datoteka:Arsen_1a.jpg|200px]]<br /> |gustoca = 5727<br /> |tvrdoca = 1440 MPa (HB), 3,5 &lt;small&gt;([[Mohsova skala]])&lt;/small&gt;<br /> |atomska_masa = 74,92160(2)<br /> |specificni_toplinski_kapacitet = (25 °C) 24,64<br /> |taliste = 817 <br /> |vreliste = 616<br /> |toplina_taljenja = 24,44<br /> |toplina_isparivanja = 34,76<br /> |EK1 = argon<br /> |EK2 = Ar<br /> |e_konfiguracija = 3d&lt;sup&gt;10&lt;/sup&gt; 4s&lt;sup&gt;2&lt;/sup&gt; 4p&lt;sup&gt;3&lt;/sup&gt; &lt;ref name=&quot;Sebastian Blumentritt&quot;&gt;Sebastian Blumentritt &#039;&#039;Periodensystem der Elemente&#039;&#039;, 6. izd., Blume-Verlag, Münster (Savezna Republika Njemačka) 2012., {{ISBN|978-3-942-53009-5}}, str. 1&lt;/ref&gt;<br /> }}<br /> <br /> *&#039;&#039;&#039;Arsen&#039;&#039;&#039; se nalazi u dvije alotropske modifikacije: sivi i žuti arsen. Postojaniji je oblik sivi ili metalni arsen. Struktura rešetke metalnog arsena odgovara strukturi rešetke crnog fosfora. Ohlade li se arsenove pare naglo pomoću vrućeg zraka, dobiva se nepostojana modifikacija – žuti arsen. On se lako otapa u ugljikovu disulfidu (CS2), a iz te se otopine hlađenjem iskritalizira u prozirne, kao vosak mekane, plastične kristale, koji jako lome svjetlost, a molekule mu imaju građu As4. Slabim zagrijevanjem ili utjecajem svjetla prelazi u sivu modifikaciju. Arsen i njegovi spojevi su otrovni i upotrebljavaju se kao insekticidi, kod izrade pesticida i pigmenta za boje.<br /> Arsenovi spojevi su kumulativni otrovi. Zagrijavanjem na zraku, arsen izgara modrikastim plamenom, uz karakterističan miris po češnjaku, a nastaje i bijeli dim arsenova(III) oksida (As2O3). Upotrebljava se u medicini, industriji boja (bojadisalstvu) i za konzerviranje drva i kože.&lt;br /&gt;<br /> Arsen je prvi otkrio Albertus Magnus u 1250.&lt;br /&gt;<br /> Arsenovodik (AsH) je bezbojan, vrlo otrovan plin, mirisa po češnjaku.&lt;br /&gt;<br /> [[Arsenopirit]] je arsenov sulfid željeza (FeAsS).<br /> <br /> {{wječnik}}<br /> <br /> ==Izvori==<br /> {{izvori}}<br /> <br /> {{Kemijski elementi}}<br /> <br /> {{Mrva-kem-el}}<br /> <br /> [[Kategorija:Kemijski elementi]]</div> WikiSysop