حمض الفوسفوريك: الفرق بين النسختين
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لا ملخص تعديل وسمان: تحرير من المحمول تعديل ويب محمول |
لا ملخص تعديل وسمان: تحرير من المحمول تعديل ويب محمول |
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سطر 1:
{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 470622096
| ImageFile = Phosphoric-acid-2D-dimensions.png
| ImageSize = 150px
| ImageName = Structural formula of phosphoric acid, showing dimensions
| ImageFileL1 = Phosphoric-acid-3D-balls.png
| ImageSizeL1 = 120px
| ImageNameL1 = Ball-and-stick model
| ImageFileR1 = Phosphoric-acid-3D-vdW.png
| ImageSizeR1 = 120px
| ImageNameR1 = Space-filling model
| IUPACName = trihydroxidooxidophosphorus<br />phosphoric acid
| OtherNames = Orthophosphoric acid<br />trihydroxylphosphine oxide
| Section1 = {{Chembox Identifiers
| PubChem = 1004
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = E4GA8884NN
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = D05467
| InChI = 1/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
| InChIKey = NBIIXXVUZAFLBC-UHFFFAOYAI
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 26078
| SMILES = OP(=O)(O)O
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 1187
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = NBIIXXVUZAFLBC-UHFFFAOYSA-N
| CASNo = 7664-38-2
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo2_Ref = {{cascite|changed|??}}
| CASNo2 = 16271-20-8
| CASNo2_Comment = />16271-20-8 (hemihydrate)
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 979
| EINECS = 231-633-2
| UNNumber = 1805
| RTECS = TB6300000
}}
| Section2 = {{Chembox Properties
| H=3|P=1|O=4
| Appearance = white solid or colourless, viscous liquid (>42 °C) <br> [[deliquescent]]
| Odor = odorless
| Density = 1.885 g/mL (liquid)<br />1.685 g/mL (85% solution)<br />2.030 g/mL (crystal at 25 °C)
| MeltingPtC = 42.35
| MeltingPt_notes = <br> (anhydrous)<br> {{convert|29.32|C|F K}}<br> (hemihydrate)
| BoilingPtC = 158
| BoilingPt_notes = <br> {{convert|213|C|F K}}<br> decomposes
| Solubility = 392.2 g/100 g (−16.3 °C)<br> 369.4 g/100 mL (0.5 °C)<br> 446 g/100 mL (14.95 °C)<br> miscible (42.3 °C)<ref name=sioc>{{cite book|last = Seidell|first = Atherton|last2 = Linke|first2 = William F.|year = 1952|title = Solubilities of Inorganic and Organic Compounds|publisher = Van Nostrand|url = [http://books.google.com/books?id=k2e5AAAAIAAJ Google Books]|accessdate = 2014-06-02}}</ref>
| SolubleOther = soluble in [[ethanol]]
| pKa = 1 = 2.148<br> 2 = 7.198<br> 3 = 12.319
| Viscosity = 2.4–9.4 [[Poise|cP]] (85% aq. soln.)<br> 147 cP (100%)
| RefractIndex = 1.34203
}}
| Section3 = {{Chembox Structure
| CrystalStruct = monoclinic
}}
| Section4 = {{Chembox Thermochemistry
| DeltaHf = -1288 kJ/mol<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=A22}}</ref>
| Entropy = 158 J/mol·K<ref name=b1/>
}}
| Section7 = {{Chembox Hazards
| GHSPictograms = {{GHS05}}<ref name="sigma">{{Sigma-Aldrich|id=466123|name=Phosphoric acid|accessdate=2014-05-09}}</ref>
| GHSSignalWord = Corrosive
| HPhrases = {{H-phrases|290|314}}<ref name="sigma" />
| PPhrases = {{P-phrases|280|305+351+338|310}}<ref name="sigma" />
| ExternalMSDS = [http://www.inchem.org/documents/icsc/icsc/eics1008.htm ICSC 1008]
| EUIndex = 015-011-00-6
| EUClass = {{Hazchem C}}
| NFPA-H = 3
| NFPA-R = 0
| NFPA-F = 0
| NFPA-S =
| RPhrases = {{R34}}
| SPhrases = {{S1/2}}, {{S26}}, {{S45}}
| FlashPt = Non-flammable
| LD50 = 1530 mg/kg (rat, oral)
}}
| Section8 = {{Chembox Related
| OtherFunction = [[Hypophosphorous acid]]<br />[[Phosphorous acid]]<br />[[Pyrophosphoric acid]]<br />[[Triphosphoric acid]]<br />[[Perphosphoric acid]]<br />[[Permonophosphoric acid]]
| Function = [[phosphorus]] [[oxoacid]]s
}}
}}
'''حمض الفوسفوريك''' {{إنج|Phosphoric acid}} هو [[حمض معدني]] [[صيغة كيميائية|بالصيغة الكيميائية]] [[هيدروجين|H]]<sub>3</sub>[[فوسفور|P]][[أكسجين|O]]<sub>4</sub> يسمى أيضاً أورثو حمض الفوسفوريك. يمكن لجزيئات أورثو حمض الفوسفوريك أن تتحد مع بعضها البعض لتشكل العديد من المركبات التي يطلق عليها اسم الأحماض الفوسفورية , وهو حمض يستخدم في صناعة الأسمدة .
== الخواص ==
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