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Arsenatna kiselina - Povijest promjena
2026-07-17T03:33:04Z
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WikiSysop: bnz
2022-05-07T18:55:11Z
<p>bnz</p>
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WikiSysop
https://enciklopedija.cc/index.php?title=Arsenatna_kiselina&diff=32548&oldid=prev
WikiSysop: Bot: Automatski unos stranica
2021-08-18T12:13:06Z
<p>Bot: Automatski unos stranica</p>
<p><b>Nova stranica</b></p><div><!--'''Arsenatna kiselina'''-->{| class="toccolours" border="1" style="float: right; clear: right; margin: 0 0 1em 1em; border-collapse: collapse;"<br />
!Arsenatna kiselina<br />
|- <br />
| align="center" colspan="2" bgcolor="#ffffff" |[[Datoteka:Arsenic-acid-2D.png|150px|3D prikaz molekule amonijaka|]][[Datoteka:Arsenic-acid-3D-vdW.png|150px|Molekula amonijaka|]] <br />
<br />
|-<br />
!Opća svojstva<br />
|- <br />
| [[IUPAC nomenklatura|Sistemsko ime]]<br />
| Arsenatna (V) kiselina<br />
|-<br />
| Druga imena<br />
| Arsenatna kiselina<br />Ortoarsenatna kiselina<br />zotoks<br />
|-<br />
| [[Kemijska formula|Molekulska formula]]<br />
| H<sub>3</sub>AsO<sub>4</sub> ('''tekućina''')<br>H<sub>3</sub>AsO<sub>4</sub>·0.5H<sub>2</sub>O ('''kruto''')<br />
|-<br />
| [[Molarna masa]]<br />
| 141.9429 [[gram|g]]/[[mol (mjerna jedinica)|mol]]<br />
|-<br />
| Izgled<br />
| Bijeli kristali<br>higroskopično<br />
|-<br />
| [[CAS registarski broj|CAS broj]]<br />
| 7664-41-7<br />
|-<br />
! Svojstva<br />
|-<br />
| [[Gustoća]] i [[faza]]<br />
| 2 [[gram po centimetru kubičnom|g/cm3]], kruto<br />
|-<br />
| [[Topljivost]] u [[voda|vodi]]<br />
| 16.7 g/100 [[ml]] (? [[°C]])<br />
|-<br />
| [[Talište]]<br />
| 35.5 °C (308,65 [[kelvin|K]])<br />
|-<br />
| [[Vrelište]]<br />
| 160 °C (433,15 K)<br />
|-<br />
| Kiselost (p''K''<sub>a</sub>) <br />
| ?<br />
|-<br />
| Bazičnost (p''K''<sub>b</sub>) <br />
| ?<br />
|-<br />
!Struktura<br />
|-<br />
| Molekularni oblik<br />
| Planar<br />
|-<br />
| Dipolni moment<br />
| ? [[Debaj|D]]<br />
|-<br />
! Opasnosti <br />
|-<br />
| Glavne opasnosti<br />
| Visoko toksična.<br />
|-<br />
| Plamište<br />
| nezapaljivo<br />
|-<br />
|-<br />
|}<br />
<br />
'''Arsenatna kiselina ili H<sub>3</sub>AsO<sub>4</sub> ''' je [[kiselina|kiselinski]] oblik [[Arsenat|arsenatnog iona]] AsO<sub>4</sub><sup>3-</sup>, trovalentong iona. Arsenatne soli se kemijski jako slično ponašaju kao i [[fosfati]]. Arsenična kiselina nalazi se samo u soluciji (tekućini), no njezin hemidratni oblik (H<sub>3</sub>AsO<sub>4</sub>·0.5H<sub>2</sub>O) formira krute kristale.<br />
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== Korištenje ==<br />
<br />
Arsenatna kiselina korsti se u premazivanju drva, kao posljednji premaz kod stakla i metala, u proizvodnji organskih [[arsen]]ovih komponenta i kao sterilant zemlje. Može biti korišten i kao [[herbicid]], [[insekticid]] i [[deraticid]].<br />
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== Vidi još ==<br />
<br />
*'''[[Arsenitna kiselina]]''' - H<sub>3</sub>AsO<sub>3</sub><br />
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{{Mrva-kem}}<br />
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[[Kategorija:Anorganske kiseline]]</div>
WikiSysop