https://www.arabsciencepedia.org/w/index.php?action=history&feed=atom&title=%D9%87%D9%8A%D8%AF%D8%B1%D9%88%D9%83%D8%B3%D9%8A%D8%AF_%D8%A7%D9%84%D9%83%D8%A7%D9%84%D8%B3%D9%8A%D9%88%D9%85 هيدروكسيد الكالسيوم - تاريخ المراجعة 2026-05-19T05:45:04Z تاريخ التعديل لهذه الصفحة في الويكي MediaWiki 1.43.6 https://www.arabsciencepedia.org/w/index.php?title=%D9%87%D9%8A%D8%AF%D8%B1%D9%88%D9%83%D8%B3%D9%8A%D8%AF_%D8%A7%D9%84%D9%83%D8%A7%D9%84%D8%B3%D9%8A%D9%88%D9%85&diff=35105&oldid=prev أسيل سيوف: أنشأ الصفحة ب'{{redirect|Slaked lime|(Ca(OH)<sub>2</sub>)<sub>(aq)</sub>|limewater|the application of slaked lime as a wall colorant|limewash}} {{chembox | verifiedrevid = 476998783 |...' 2013-12-04T16:29:07Z <p>أنشأ الصفحة ب&#039;{{redirect|Slaked lime|(Ca(OH)&lt;sub&gt;2&lt;/sub&gt;)&lt;sub&gt;(aq)&lt;/sub&gt;|limewater|the application of slaked lime as a wall colorant|limewash}} {{chembox | verifiedrevid = 476998783 |...&#039;</p> <p><b>صفحة جديدة</b></p><div>{{redirect|Slaked lime|(Ca(OH)&lt;sub&gt;2&lt;/sub&gt;)&lt;sub&gt;(aq)&lt;/sub&gt;|limewater|the application of slaked lime as a wall colorant|limewash}}<br /> {{chembox<br /> | verifiedrevid = 476998783<br /> | Name = Calcium hydroxide<br /> | ImageFile = Calcium hydroxide.jpg<br /> | ImageSize = 200px<br /> | ImageName = Calcium hydroxide<br /> | IUPACName = Calcium hydroxide<br /> | OtherNames = Slaked lime&lt;br/&gt;Milk of lime&lt;br/&gt;Calcium(II) hydroxide&lt;br/&gt;Pickling lime&lt;br/&gt;Hydrated lime<br /> | Section1 = {{Chembox Identifiers<br /> | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}<br /> | ChemSpiderID = 14094<br /> | UNII_Ref = {{fdacite|correct|FDA}}<br /> | UNII = PF5DZW74VN<br /> | KEGG_Ref = {{keggcite|correct|kegg}}<br /> | KEGG = D01083<br /> | InChI = 1/Ca.2H2O/h;2*1H2/q+2;;/p-2<br /> | ChEBI_Ref = {{ebicite|correct|EBI}}<br /> | ChEBI = 31341<br /> | SMILES = [Ca+2].[OH-].[OH-]<br /> | InChIKey = AXCZMVOFGPJBDE-NUQVWONBAD<br /> | SMILES1 = [OH-].[OH-].[Ca+2]<br /> | StdInChI_Ref = {{stdinchicite|correct|chemspider}}<br /> | StdInChI = 1S/Ca.2H2O/h;2*1H2/q+2;;/p-2<br /> | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}<br /> | StdInChIKey = AXCZMVOFGPJBDE-UHFFFAOYSA-L<br /> | CASNo = 1305-62-0<br /> | CASNo_Ref = {{cascite|correct|CAS}}<br /> | PubChem = 14777<br /> | EINECS = 215-137-3<br /> | RTECS = EW2800000<br /> }}<br /> | Section2 = {{Chembox Properties<br /> | Formula = Ca(OH)&lt;sub&gt;2&lt;/sub&gt;<br /> | MolarMass = 74.093 g/mol<br /> | ExactMass = 73.968071<br /> | Appearance = white powder<br /> | Odor = odorless<br /> | Density = 2.211 g/cm&lt;sup&gt;3&lt;/sup&gt;, solid<br /> | Solubility = 0.189 g/100 mL (0 °C) &lt;br&gt; 0.173 g/100 mL (20 °C) &lt;br&gt; 0.066 g/100 mL (100 °C)<br /> | SolubilityProduct = 4.68{{e|&amp;minus;6}}<br /> | SolubleOther = Soluble in [[glycerol]] and [[acid]]s. &lt;br&gt; Insoluble in [[alcohol]].<br /> | MeltingPt = 580 °C (loses water)<br /> | pKa = 12.4<br /> | pKb = 2.37<br /> | RefractIndex = 1.574<br /> }}<br /> | Section4 = {{Chembox Thermochemistry<br /> | DeltaHf = −987&amp;nbsp;kJ·mol&lt;sup&gt;−1&lt;/sup&gt;&lt;ref name=b1&gt;{{cite book| author = Zumdahl, Steven S.|title =Chemical Principles 6th Ed.| publisher = Houghton Mifflin Company| year = 2009| isbn = 0-618-94690-X|page=A21}}&lt;/ref&gt;<br /> | Entropy = 83&amp;nbsp;J·mol&lt;sup&gt;−1&lt;/sup&gt;·K&lt;sup&gt;−1&lt;/sup&gt;&lt;ref name=b1 /&gt;<br /> }}<br /> | Section7 = {{Chembox Hazards<br /> | ExternalMSDS = &lt;ref name=&quot;avantormaterials&quot;&gt;{{cite web| url =http://www.avantormaterials.com/documents/MSDS/usa/English/C0407_msds_us_Default.pdf| title = MSDS Calcium hydroxide| accessdate = 2011-06-21}}&lt;/ref&gt;<br /> | EUIndex = Corrosive (&#039;&#039;&#039;C&#039;&#039;&#039;), Irritant (&#039;&#039;&#039;Xi&#039;&#039;&#039;)<br /> | RPhrases = {{R22}}, {{R34}}<br /> | SPhrases = {{S2}}, {{S24}}<br /> | NFPA-H = 3<br /> | NFPA-F = 0<br /> | NFPA-R = 0<br /> | NFPA-O =<br /> | FlashPt = Non-flammable<br /> | LD50 = 7340 mg/kg (oral, rat) &lt;br&gt; 7300 mg/kg (mouse)<br /> }}<br /> | Section8 = {{Chembox Related<br /> | OtherAnions =<br /> | OtherCations = [[Magnesium hydroxide]]&lt;br/&gt;[[Strontium hydroxide]]&lt;br/&gt;[[Barium hydroxide]]<br /> | Function = [[base (chemistry)|base]]s<br /> | OtherFunctn = [[Calcium oxide]]<br /> }}<br /> }}<br /> <br /> &#039;&#039;&#039;ماءات الكالسيوم Calcium Hydroxide&#039;&#039;&#039;<br /> <br /> ==الوصف ==<br /> <br /> مسحوق ناعم لونه أبيض أو قريب من الأبيض، غير منحل عملياً في الماء.<br /> <br /> ==الاستعمال ==<br /> <br /> هيدروكسيد الكالسيوم قلوي ضعيف . يستخدم على شكل محلول في بعض ال[[غسول]]ات الجلدية والمستحضرات ال[[زيت]]ية لتشكيل صوابين كلسية [[حمض دسم|للحموض الدسمة]] والتي تنتج [[مستحلب]]ات ماء في زيت. <br /> <br /> {{بذرة}}<br /> {{سواغ}}<br /> <br /> ==مصادر==<br /> {{ثبت المراجع}}<br /> [[دساتير الأدوية]].<br /> <br /> [[تصنيف:كيمياء]]<br /> [[تصنيف:قلويات]]</div> أسيل سيوف