{{위키데이터 속성 추적}}
{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 477003420
| Name = 탄산 칼슘
| ImageFileL1 = calcium carbonate.png
| ImageFileR1 = Calcium-carbonate-xtal-3D-SF.png
| ImageFile2 = Calcium carbonate.jpg
| IUPACName = Calcium carbonate
| OtherNames = [[calcite]]; [[aragonite]]; [[chalk]]; [[Lime (material)]]; [[Limestone]]; [[marble]]; [[oyster]]; [[pearl]];
|Section1={{Chembox Identifiers
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = H0G9379FGK
| ChEMBL_Ref = {{ebicite|changed|EBI}}
| ChEMBL = 1200539
| DrugBank = DB06724
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = D00932
| InChI = 1/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 3311
| SMILES = [Ca+2].[O-]C([O-])=O
| InChIKey = VTYYLEPIZMXCLO-NUQVWONBAS
| SMILES1 = C(=O)([O-])[O-].[Ca+2]
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = VTYYLEPIZMXCLO-UHFFFAOYSA-L
| CASNo = 471-34-1
| CASNo_Ref = {{cascite|correct|CAS}}
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 9708
| EINECS = 207-439-9
| PubChem = 10112
| RTECS = FF9335000
}}
|Section2={{Chembox Properties
| Formula = CaCO<sub>3</sub>
| MolarMass = 100.0869 g/mol
| Appearance = Fine white powder; chalky taste
| Odor = odorless
| Density = 2.711 g/cm<sup>3</sup> ([[calcite]])<br />2.83 g/cm<sup>3</sup> ([[aragonite]])
| Solubility = 0.013 g/L (25 °C)<ref>{{서적 인용|title=SI Chemical Data Book |edition=4th |publisher=John Wiley & Sons Australia |last1=Aylward |first1=Gordon |last2=Findlay |first2=Tristan |isbn=978-0-470-81638-7|year=2008}}</ref><ref>{{서적 인용|title=Calcium Carbonate: From the Cretaceous Period Into the 21st Century|publisher=Springer Science & Business Media|year=2001|url=https://books.google.com/books?id=pbkKGa19k5QC&pg=RA1-PR2|last1=Rohleder |first1=J. |last2=Kroker |first2=E. |isbn=978-3-7643-6425-0}}</ref>
| SolubilityProduct = {{val|3.3e-9}}<ref>{{서적 인용|last =Benjamin|first=Mark M.|year=2002|title=Water Chemistry |publisher=McGraw-Hill|isbn =978-0-07-238390-4|url=https://books.google.com/books?id=67anQgAACAAJ}}</ref>
| Solvent = dilute acids
| SolubleOther = soluble
| MeltingPtC = 1339
| MeltingPt_notes = (calcite) <br> {{cvt|825|°C|°F K}} (aragonite)<ref>{{웹 인용|url=https://www.cdc.gov/niosh/docs/81-123/pdfs/0090.pdf|title=Occupational safety and health guideline for calcium carbonate|publisher=US Dept. of Health and Human Services|accessdate=31 March 2011}}</ref><ref>{{웹 인용|url=http://diyhpl.us/~nmz787/mems/unorganized/CRC%20Handbook%20of%20Chemistry%20and%20Physics%2085th%20edition.pdf |title=Archived copy |access-date=29 October 2018 |archive-url=https://web.archive.org/web/20181029195852/http://diyhpl.us/~nmz787/mems/unorganized/CRC%20Handbook%20of%20Chemistry%20and%20Physics%2085th%20edition.pdf |archive-date=29 October 2018 |url-status=dead }}</ref>
| BoilingPt = [[Chemical decomposition|decomposes]]
| RefractIndex = 1.59
| pKa = 9.0
| pKb =
| MagSus = {{val|-3.82e-5|u=cm<sup>3</sup>/mol}}
}}
|Section3={{Chembox Structure
| CrystalStruct = Trigonal
| SpaceGroup = <span style="text-decoration: overline">3</span>2/m
}}
|Section5={{Chembox Thermochemistry
| DeltaHf = −1207&nbsp;kJ·mol<sup>−1</sup><ref name=b1>{{서적 인용| author = Zumdahl, Steven S.|title =Chemical Principles 6th Ed| publisher = Houghton Mifflin Company| year = 2009| isbn = 978-0-618-94690-7|page=A21}}</ref>
| Entropy = 93&nbsp;J·mol<sup>−1</sup>·K<sup>−1</sup><ref name=b1 />
 }}
|Section6={{Chembox Pharmacology
| ATCCode_prefix = A02
| ATCCode_suffix = AC01
| ATC_Supplemental = {{ATC|A12|AA04}}
}}
|Section7={{Chembox Hazards
| ExternalSDS = [http://www.inchem.org/documents/icsc/icsc/eics1193.htm ICSC 1193]
| MainHazards =
| NFPA-H = 0
| NFPA-F = 0
| NFPA-R = 0
| NFPA-S =
| RPhrases =
| SPhrases =
| LD50 = 6450 mg/kg (oral, rat)
| PEL = TWA 15 mg/m<sup>3</sup> (total) TWA 5 mg/m<sup>3</sup> (resp)<ref>{{PGCH|0090}}</ref>
}}
|Section8={{Chembox Related
| OtherAnions = [[Calcium bicarbonate]]
| OtherCations = [[Magnesium carbonate]]<br />[[Strontium carbonate]]<br />[[Barium carbonate]]
| OtherCompounds = [[Calcium sulfate]]
}}
}}

'''탄산 칼슘'''(Calcium carbonate, CaCO<sub>3</sub>)은 [[탄산]]이온과 [[칼슘]]이온이 만나 생성되는 흰색 물질로 '''탄산 석회'''라고도 하며, 물에 잘 녹지 않아 수용액 상에서 침전한다. 석회암 동굴의 [[종유석]]이나 [[석순]], [[석주]] 등을 이루는 물질이며, 흑칠판에 쓰는 분필의 성분이다. 지구상에 존재하는 대부분의 [[이산화 탄소]](CO<sub>2</sub>)는 탄산 칼슘의 형태로 존재한다. 탄산 칼슘을 섭씨 900도 이상의 고온에서 가열하면 이산화 탄소가 빠져 나가면서 [[산화 칼슘]](CaO)이 생성된다. [[산 (화학)|산]]에는 쉽게 반응하여 이산화 탄소를 발생하며 녹는다.<ref>단, [[탄산]]과 반응하는 경우 물에 잘 녹는 탄산수소칼슘(Ca(HCO<sub>3</sub>)<sub>2</sub>)을 형성하며 녹으나, 이산화 탄소는 발생하지 않는다.</ref>

== 같이 보기 ==
* [[대리암]], [[석회암]]

== 각주 ==
{{각주}}

== 외부 링크 ==
* {{위키공용분류-줄}}
* {{두피디아|101013000706041|탄산칼슘}}
* [http://navercast.naver.com/science/chemistry/1756 네이버 캐스트 - 탄산칼슘]

{{전거 통제}}
{{토막글|화학}}

[[분류:탄산염]]
[[분류:부형제]]
[[분류:제산제]]