Оксална киселина: Разлика помеѓу преработките
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Ред 1:
{{Chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 476995784
| ImageFile = Oxalsäure3.svg
| ImageSize = 140
| ImageAlt = Structural formula of oxalic acid
| ImageFileL1 = Oxalic acid 3D ball.png
| ImageSizeL1 = 120
| ImageAltL1 = Skeletal formula of oxalic acid
| ImageFileR1 = Oxalic-acid-3D-vdW.png
| ImageSizeR1 = 120
| ImageAltR1 = Space-filling model of oxalic acid
| ImageFile2 = Oxalic acid dihyrate.JPG
| ImageName2 = Oxalic acid dihydrate
| IUPACName = ethanedioic acid
| OtherNames = oxalic acid
| Section1 = {{Chembox Identifiers
| CASNo = 144-62-7
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 971
| PubChem_Ref = {{Pubchemcite|correct|PubChem}}
| ChemSpiderID = 946
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| UNII = 9E7R5L6H31
| UNII_Ref = {{fdacite|correct|FDA}}
| EINECS = 205-634-3
| UNNumber = 3261
| DrugBank_Ref = {{drugbankcite|correct|drugbank}}
| DrugBank = DB03902
| KEGG_Ref = {{keggcite|changed|kegg}}
| KEGG = C00209
| MeSHName = Oxalic+acid
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 16995
| RTECS = RO2450000
| ATCvet = yes
| ATCCode_prefix = P53
| ATCCode_suffix = AG03
| SMILES = C(=O)(C(=O)O)O
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 146755
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = MUBZPKHOEPUJKR-UHFFFAOYSA-N
| Beilstein = 385686
| Gmelin = 2208
| 3DMet = B00059}}
| Section2 = {{Chembox Properties
| C = 2
| H = 2
| O = 4
| MolarMass_notes =<br /> (anhydrous) <br /> 126.07 g mol<sup>−1</sup> (dihydrate)
| ExactMass = 89.995308552 g mol<sup>−1</sup>
| Appearance = White crystals
| Density = 1.90 g cm<sup>−3</sup> (anhydrous) <br /> 1.653 g cm<sup>−3</sup> (dihydrate)
| MeltingPtC = 102
| MeltingPtCH = 103
| Melting_notes = {{convert|101.5|C|F}} dihydrate
| Solubility = 143 g/L (25 °C)
| SolubleOther = 237 g/L (15 °C) in [[ethanol]] <hr> 14 g/L (15 °C) in [[diethyl ether]] <ref>{{cite web|last=Radiant Agro Chem|title=Oxalic Acid MSDS|url=http://www.racpl.com/oa_msds.htm}}</ref>
| pKa = 1.25, 4.14<ref>Bjerrum, J., et al. (1958) ''Stability Constants'', Chemical Society, London.</ref>
| }}
| Section7 = {{Chembox Hazards
| MainHazards = Toxic
| NFPA-H = 3
| NFPA-F = 1
| NFPA-R = 0
| FlashPtC = 166
| ExternalMSDS = [http://hazard.com/msds/mf/baker/baker/files/o6044.htm External MSDS]
}}
| Section8 = {{Chembox Related
| OtherCpds = [[oxalyl chloride]]<br />[[disodium oxalate]]<br />[[calcium oxalate]]<br />[[phenyl oxalate ester]]
}}
}}
'''Оксална киселина''' е дикарбоксилна киселина со [[хемиска формула|формула]] H<sub>2</sub>C<sub>2</sub>O<sub>4</sub>.
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