عرض مصدر هيدروكسيد الكالسيوم

{{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
| Name = Calcium hydroxide
| ImageFile = Calcium hydroxide.jpg
| ImageSize = 200px
| ImageName = Calcium hydroxide
| IUPACName = Calcium hydroxide
| OtherNames = Slaked lime<br/>Milk of lime<br/>Calcium(II) hydroxide<br/>Pickling lime<br/>Hydrated lime
| Section1 = {{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 14094
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = PF5DZW74VN
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = D01083
| InChI = 1/Ca.2H2O/h;2*1H2/q+2;;/p-2
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 31341
| SMILES = [Ca+2].[OH-].[OH-]
| InChIKey = AXCZMVOFGPJBDE-NUQVWONBAD
| SMILES1 = [OH-].[OH-].[Ca+2]
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/Ca.2H2O/h;2*1H2/q+2;;/p-2
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = AXCZMVOFGPJBDE-UHFFFAOYSA-L
| CASNo = 1305-62-0
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 14777
| EINECS = 215-137-3
| RTECS = EW2800000
 }}
| Section2 = {{Chembox Properties
| Formula = Ca(OH)<sub>2</sub>
| MolarMass = 74.093 g/mol
| ExactMass = 73.968071
| Appearance = white powder
| Odor = odorless
| Density = 2.211 g/cm<sup>3</sup>, solid
| Solubility = 0.189 g/100 mL (0 °C) <br> 0.173 g/100 mL (20 °C) <br> 0.066 g/100 mL (100 °C)
| SolubilityProduct = 4.68{{e|&minus;6}}
| SolubleOther = Soluble in [[glycerol]] and [[acid]]s. <br> Insoluble in [[alcohol]].
| MeltingPt = 580 °C (loses water)
| pKa = 12.4
| pKb = 2.37
| RefractIndex = 1.574
 }}
| Section4 = {{Chembox Thermochemistry
|   DeltaHf = −987&nbsp;kJ·mol<sup>−1</sup><ref name=b1>{{cite book| author = Zumdahl, Steven S.|title =Chemical Principles 6th Ed.| publisher = Houghton Mifflin Company| year = 2009| isbn = 0-618-94690-X|page=A21}}</ref>
|   Entropy = 83&nbsp;J·mol<sup>−1</sup>·K<sup>−1</sup><ref name=b1 />
 }}
| Section7 = {{Chembox Hazards
| ExternalMSDS = <ref name="avantormaterials">{{cite web| url =http://www.avantormaterials.com/documents/MSDS/usa/English/C0407_msds_us_Default.pdf| title = MSDS Calcium hydroxide| accessdate = 2011-06-21}}</ref>
| EUIndex = Corrosive ('''C'''), Irritant ('''Xi''')
| RPhrases = {{R22}}, {{R34}}
| SPhrases = {{S2}}, {{S24}}
| NFPA-H = 3
| NFPA-F = 0
| NFPA-R = 0
| NFPA-O =
| FlashPt = Non-flammable
| LD50 = 7340 mg/kg (oral, rat) <br> 7300 mg/kg (mouse)
 }}
| Section8 = {{Chembox Related
| OtherAnions =
| OtherCations = [[Magnesium hydroxide]]<br/>[[Strontium hydroxide]]<br/>[[Barium hydroxide]]
| Function = [[base (chemistry)|base]]s
| OtherFunctn = [[Calcium oxide]]
 }}
}}

'''ماءات الكالسيوم Calcium Hydroxide'''

==الوصف ==

مسحوق ناعم لونه أبيض أو قريب من الأبيض، غير منحل عملياً في الماء.

==الاستعمال ==

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. 

{{بذرة}}
{{سواغ}}

==مصادر==
{{ثبت المراجع}}
[[دساتير الأدوية]].

[[تصنيف:كيمياء]]
[[تصنيف:قلويات]]