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Revision as of 13:18, 15 February 2012 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Saving copy of the {{chembox}} taken from revid 472533163 of page Calcium_acetate for the Chem/Drugbox validation project (updated: '').		Latest revision as of 11:55, 31 December 2024 edit WinstonWolfie (talk | contribs)Extended confirmed users526 edits →Uses: Add detail about California snowball
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			{{short description|Chemical compound}}
	{{ambox | text = This page contains a copy of the infobox ({{tl|chembox}}) taken from revid of page ] with values updated to verified values.}}
	{{chembox		{{chembox
	| Watchedfields = changed		| Verifiedfields = changed
			| Watchedfields = changed
	| verifiedrevid = 443672982		| verifiedrevid = 476999801
	| ImageFile = ca-acetate.png		| ImageFile = Calcium acetate.svg
	| ImageSize = 248px		| ImageSize = 160px
	| ImageFile1 = Calcium acetate.png		| ImageFile1 = ca-acetate.png
	| ImageSize1 = 150px
	| IUPACName = Calcium acetate		| ImageCaption1 = Calcium acetate crystals
			| PIN = Calcium diacetate<ref>{{cite book |author=] |date=2014 |title=Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 |publisher=] |pages=801 |doi=10.1039/9781849733069 |isbn=978-0-85404-182-4}}</ref>
	| OtherNames = Acetate of lime<br>Calcium ethanoate		| OtherNames = Acetate of lime<br>Calcium ethanoate
	| Section1 = {{Chembox Identifiers		| Section1 = {{Chembox Identifiers
	| Abbreviations = Ca(OAc)<sub>2</sub>		| Abbreviations = Ca(OAc)<sub>2</sub>
	| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}		| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
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	| UNII_Ref = {{fdacite|correct|FDA}}		| UNII_Ref = {{fdacite|correct|FDA}}
	| UNII = Y882YXF34X		| UNII = Y882YXF34X
			| UNII1_Ref = {{fdacite|correct|FDA}}
			| UNII1 = 7ZA48GIM5H
			| UNII1_Comment = (monohydrate)
	| InChIKey = VSGNNIFQASZAOI-NUQVWONBAW		| InChIKey = VSGNNIFQASZAOI-NUQVWONBAW
	| StdInChI_Ref = {{stdinchicite|correct|chemspider}}		| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
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	| CASNo = 62-54-4		| CASNo = 62-54-4
	| CASNo_Ref = {{cascite|correct|CAS}}		| CASNo_Ref = {{cascite|correct|CAS}}
	| EINECS =		| CASNo1 = 5743-26-0
			| CASNo1_Ref = {{cascite|correct|CAS}}
			| CASNo1_Comment = (monohydrate)
			| EINECS = 269-613-0
			| ChEMBL_Ref = {{ebicite|changed|EBI}}
			| ChEMBL = 1200800
	| PubChem = 6116		| PubChem = 6116
	| DrugBank_Ref = {{drugbankcite|correct|drugbank}}		| DrugBank_Ref = {{drugbankcite|correct|drugbank}}
	| DrugBank = DB00258		| DrugBank = DB00258
			| Beilstein = 3692527
⚫	| SMILES = .C(=O)C.C(=O)C
			| Gmelin = 22320
			| SMILES = CC(=O)OOC(=O)C
		⚫	| SMILES1 = .C(=O)C.C(=O)C
	| InChI = 1/2C2H4O2.Ca/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2		| InChI = 1/2C2H4O2.Ca/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
	| RTECS = AF7525000		| RTECS = AF7525000
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	| ChEBI = 3310		| ChEBI = 3310
	| KEGG_Ref = {{keggcite|correct|kegg}}		| KEGG_Ref = {{keggcite|correct|kegg}}
	| KEGG =		| KEGG = D00931
			}}
⚫	| ATCCode_prefix = A12
		⚫	| Section2 = {{Chembox Properties
⚫	| ATCCode_suffix = AA12
		⚫	| C=4 | H=6 | O=4 | Ca=1
⚫	| ATC_Supplemental = (anhydrous)}}
			| MolarMass = 158.166 g/mol (anhydrous)<br />176.181 g/mol (monohydrate)
⚫	| Section2 = {{Chembox Properties
⚫	| C=4|H=6|O=4|Ca=1
	| Appearance = White solid <br> ]		| Appearance = White solid <br> ]
	| Odor = slight ] odor		| Odor = slight ] odor
	| Density = 1.509 g/cm<sup>3</sup>		| Density = 1.509 g/cm<sup>3</sup>
	| MeltingPt = 160 °C		| MeltingPtC = 160
			| MeltingPt_ref = <ref>{{cite book|author=Dale L. Perry|title=Handbook of Inorganic Compounds|url=https://books.google.com/books?id=SFD30BvPBhoC&pg=PA84|edition=Second|date=May 19, 2011|publisher=Taylor & Francis|isbn=978-1-4398-1461-1|page=84}}</ref>
	| Melting_notes = decomposition to acetone		| MeltingPt_notes = decomposition to CaCO<sub>3</sub> + acetone
	| BoilingPt =		| BoilingPt =
	| Boiling_notes =		| BoilingPt_notes =
	| Solubility = 37.4 g/100 mL (0 °C) <br> 34.7 g/100 mL (20 °C) <br> 29.7 g/100 mL (100 °C)		| Solubility = 37.4 g/100 mL (0 °C) <br> 34.7 g/100 mL (20 °C) <br> 29.7 g/100 mL (100 °C)
	| SolubleOther = slightly soluble in ] <br> insoluble in ], ] and ]		| SolubleOther = slightly soluble in ], ] <br> insoluble in ], ] and ]
	| pKa = 6.3-9.6		| pKa = ca. 0.7
	| pKb =		| pKb =
	| RefractIndex = 1.55		| RefractIndex = 1.55
			| MagSus = -70.7·10<sup>−6</sup> cm<sup>3</sup>/mol
	}}		}}
	| Section3 = {{Chembox Structure		| Section3 = {{Chembox Structure
	| CrystalStruct =		| CrystalStruct =
	| Coordination =		| Coordination =
	| MolShape = }}		| MolShape = }}
	| Section4 = {{Chembox Thermochemistry		| Section5 = {{Chembox Thermochemistry
	| DeltaHf =		| DeltaHf =
	| DeltaHc =		| DeltaHc =
	| Entropy =		| Entropy =
	| HeatCapacity = }}		| HeatCapacity = }}
	| Section5 = {{Chembox Pharmacology		| Section6 = {{Chembox Pharmacology
		⚫	| ATCCode_prefix = V03
		⚫	| ATCCode_suffix = AE07
		⚫	| ATC_Supplemental =
	| AdminRoutes =		| AdminRoutes =
	| Bioavail =		| Bioavail =
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	| Legal_AU =		| Legal_AU =
	| Legal_CA =		| Legal_CA =
	| PregCat =		| Pregnancy_category =
	| PregCat_AU =		| Pregnancy_AU =
			}}
	| PregCat_US = }}
	| Section6 = {{Chembox Explosive		| Section4 = {{Chembox Explosive
	| ShockSens =		| ShockSens =
	| FrictionSens =		| FrictionSens =
	| ExplosiveV =		| DetonationV =
	| REFactor = }}		| REFactor = }}
	| Section7 = {{Chembox Hazards		| Section7 = {{Chembox Hazards
	| EUClass =
	| EUIndex =
	| MainHazards =		| MainHazards =
	| NFPA-H = 1		| NFPA-H = 1
	| NFPA-F = 1		| NFPA-F = 1
	| NFPA-R = 0		| NFPA-R = 0
	| NFPA-O =		| NFPA-S =
	| RPhrases =
	| SPhrases =
	| RSPhrases =
	| FlashPt =		| FlashPt =
	| Autoignition = 680 - 730 °C		| AutoignitionPtC = 680 to 730
	| ExploLimits =		| ExploLimits =
	| LD50 = 4280 mg/kg (oral, rat)		| LD50 = 4280 mg/kg (oral, rat)
	| PEL = }}		| PEL = }}
	| Section8 = {{Chembox Related		| Section8 = {{Chembox Related
	| OtherAnions =		| OtherAnions =
	| OtherCations =		| OtherCations = ]
	| OtherFunctn =		| OtherFunction =
	| Function =		| OtherFunction_label =
	| OtherCpds = }}		| OtherCompounds = }}
	}}		}}
			'''Calcium acetate''' is a ] which is a ] ] of ]. It has the formula Ca(C<sub>2</sub>H<sub>3</sub>O<sub>2</sub>)<sub>2</sub>. Its standard name is calcium acetate, while '''calcium ethanoate''' is the systematic name. An older name is '''acetate of lime'''. The ] form is very ]; therefore the mono] (Ca(CH<sub>3</sub>COO)<sub>2</sub>•H<sub>2</sub>O) is the common form.
			==Production==
			Calcium acetate can be prepared by soaking ] (found in eggshells, or in common carbonate rocks such as ] or ]) or ] in ]:
			:CaCO<sub>3</sub>(s) + ](aq) → Ca(CH<sub>3</sub>COO)<sub>2</sub>(aq) + H<sub>2</sub>O(l) + CO<sub>2</sub>(g)
			:Ca(OH)<sub>2</sub>(s) + 2CH<sub>3</sub>COOH(aq) → Ca(CH<sub>3</sub>COO)<sub>2</sub>(aq) + 2H<sub>2</sub>O(l)
			Since both reagents would have been available pre-historically, the chemical would have been observable as crystals then.
			==Uses==
			* In ], blood levels of ] may rise (called ]) leading to bone problems. Calcium acetate binds phosphate in the diet to lower blood phosphate levels.<ref>{{cite web |title=Calcium Acetate |url=https://www.mayoclinic.org/drugs-supplements/calcium-acetate-oral-route/description/drg-20062494 |website=Mayo Clinic |access-date=19 November 2019}}</ref>
			* Calcium acetate is used as a ], as a stabilizer, buffer and ], mainly in candy products under the number E263.
			* ] is traditionally obtained by coagulating ] with ]. Calcium acetate has been found to be a better alternative; being soluble, it requires less skill and a smaller amount.<ref name=jylu>{{cite journal | doi = 10.1111/j.1365-2621.1980.tb03864.x | title = Use of Calcium Salts for Soybean Curd Preparation | date = 1980 | last1 = Lu | first1 = J. Y. | last2 = Carter | first2 = Eloise | last3 = Chung | first3 = R. A. | journal = Journal of Food Science | volume = 45 | pages = 32–34 }}</ref>
			* Because it is inexpensive, calcium acetate was once a common starting material for the synthesis of ] before the development of the ]:<ref>{{cite journal
			| title = Losses Incurred in the Preparation of Acetone by the Distillation of Acetate of Lime.
			|author1=Leo Frank Goodwin |author2=Edward Tyghe Sterne | journal = Industrial & Engineering Chemistry
			| volume = 12
			| issue = 3
			| year = 1920
			| pages = 240–243
			| doi = 10.1021/ie50123a012 |url=https://zenodo.org/record/1428748 }}</ref><ref>{{cite journal
			| title = Distillation of Acetate of Lime.
			|author1=E. G. R. Ardagh |author2=A. D. Barbour |author3=G. E. McClellan |author4=E. W. McBride | journal = Industrial & Engineering Chemistry
			| volume = 16
			| issue = 11
			| year = 1924
			| pages = 1133–1139
			| doi = 10.1021/ie50179a013 }}</ref>
			: Ca(CH<sub>3</sub>COO)<sub>2</sub> → CaCO<sub>3</sub>(s) + (CH<sub>3</sub>)<sub>2</sub>CO
			* A saturated solution of calcium acetate in alcohol forms a semisolid, flammable gel that is much like "canned heat" products such as ].<ref>{{Cite web |url=http://jchemed.chem.wisc.edu/jcesoft/CCA/CCA3/MAIN/CANHEAT/PAGE1.HTM |title="Canned Heat" at Journal of Chemical Education "Chemistry comes alive!" |access-date=2008-03-26 |archive-date=2008-10-03 |archive-url=https://web.archive.org/web/20081003142048/http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA3/MAIN/CANHEAT/PAGE1.HTM |url-status=dead }}</ref> Chemistry teachers often prepare "California Snowballs", a mixture of calcium acetate solution and ].<ref>{{cite web |url=http://umanitoba.ca/outreach/crystal/chemistry.html |title=Chemistry Teaching Resources |archive-url=https://web.archive.org/web/20110923051746/https://umanitoba.ca/outreach/crystal/chemistry.html |archive-date=2011-09-23 |url-status=dead |website=]}}</ref> The resulting gel is whitish in color, resembling a ] and can be lit on fire; it will burn for around 20 minutes.<ref>{{cite web |title=CA (California) Snowball |url=https://chem.libretexts.org/Courses/University_of_California_Davis/UCDemos/CA_(California)_Snowball |website=] |publisher=] |access-date=2024-12-31}}</ref>
			==Natural occurrence==
			Pure calcium acetate is yet unknown among minerals. {{nowrap|]{{mdash}}}}calcium acetate chloride {{nowrap|pentahydrate{{mdash}}}}is listed as a known mineral,<ref>{{Cite web |url=http://www.mindat.org/min-862.html |title=Calclacite |access-date=2024-12-31 |archive-date=2017-01-20 |archive-url=https://web.archive.org/web/20170120095111/http://www.mindat.org/min-862.html |url-status=live |website=mindat.org}}</ref> but its genesis is anthropogenic (human-generated, as opposed to naturally occurring).<ref>{{cite web |title=Man made minerals |url=https://australian.museum/learn/minerals/what-are-minerals/man-made-minerals/ |website=] |publisher=] |date=2022-12-08 |quote=It owes its existence to humans – it only grows naturally in old oak drawers as it forms when calcium-rich rocks or fossils react with acetic acid in the wood.}}</ref>
			==References==
			<references/>
			{{Drugs for treatment of hyperkalemia and hyperphosphatemia}}
			{{clear}}
			{{Acetates}}{{Calcium compounds}}
			]
			]
			]
			]