{{위키데이터 속성 추적}}
{{Chembox
| Watchedfields  = changed
| verifiedrevid  = 477001582
| ImageFile      = CrO3-from-xtal-1970-bulk-3D-balls.png
| ImageSize      = 200px
| ImageName      = Ball-and-stick model of chromium trioxide
| ImageFile1     = Chromium(VI) oxide.jpg
| ImageSize1     = 220px
| ImageName1     = Powder of chromium trioxide
| IUPACName      = [[Chromium]] trioxide
| OtherNames     = Chromic anhydride, Chromium(VI) oxide, Chromic acid (misnomer)
| SystematicName = 
| Section1       = {{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 14212
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 8LV49809UC
| InChI = 1/Cr.3O/rCrO3/c2-1(3)4
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 48240
| SMILES = O=[Cr](=O)=O
| InChIKey = WGLPBDUCMAPZCE-YFSAMUSXAF
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/Cr.3O
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = WGLPBDUCMAPZCE-UHFFFAOYSA-N
| CASNo = 1333-82-0
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 14915
| RTECS = GB6650000
| UNNumber = 1463
  }}
| Section2       = {{Chembox Properties
| Cr=1 | O=3
| Appearance = Dark red granular solid, [[deliquescent]]
| Odor = Odorless
| Density = 2.7 g/cm<sup>3</sup> (20 °C)<ref name=crc />
| MeltingPtC = 197
| MeltingPt_ref =<ref name=crc />
| BoilingPtC = 250
| BoilingPt_notes = <br> decomposes<ref name=crc />
| Solubility = 164.8 g/{{abbr|100 mL|100 mL of solvent}} (0&nbsp;°C)<br> 169 g/100 mL (25&nbsp;°C)<ref name=crc>{{CRC90}}</ref><br> 172.6 g/100 mL (40 °C)<br> 198.1 g/100 mL (100&nbsp;°C)<ref name=sioc>{{서적 인용|last1 = Seidell|first1 = Atherton|last2 = Linke|first2 = William F.|year = 1919|title = Solubilities of Inorganic and Organic Compounds|url = https://archive.org/details/solubilitiesino01seidgoog|publisher = D. Van Nostrand Company|edition = 2nd|page = [https://archive.org/details/solubilitiesino01seidgoog/page/n276 250]}}</ref>
| SolubleOther = Soluble in [[sulfuric acid|H<sub>2</sub>SO<sub>4</sub>]], [[nitric acid|HNO<sub>3</sub>]], [[diethyl ether|(C<sub>2</sub>H<sub>5</sub>)<sub>2</sub>O]], [[acetic acid|CH<sub>3</sub>COOH]], [[acetone]]
| MagSus = +40·10<sup>−6</sup> cm<sup>3</sup>/mol<ref name=crc />
  }}
| Section3       = 
| Section4       = {{Chembox Thermochemistry
| DeltaHf = −589.3 kJ/mol<ref name=pphoic>{{서적 인용|last = Pradyot|first = Patnaik|year = 2003|title = Handbook of Inorganic Chemicals|publisher = The McGraw-Hill Companies, Inc.|isbn = 0-07-049439-8}}</ref>
| Entropy = 73.2 J/mol·K<ref name=chemister>{{웹 인용|url=http://chemister.ru/Database/properties-en.php?dbid=1&id=3425|title=chromium(VI) oxide|website=chemister.ru}}</ref>
  }}
| Section5       = {{Chembox Hazards
| ExternalSDS = [http://www.inchem.org/documents/icsc/icsc/eics1194.htm ICSC 1194]
| GHSPictograms = {{GHS03}}{{GHS05}}{{GHS06}}{{GHS08}}{{GHS09}}<ref name="sigma">{{Sigma-Aldrich|id=675644|name=Chromium(VI) oxide|accessdate=2021-11-22}}</ref>
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|271|301+311|314|317|330|334|335|340|350|361f|372|410}}<ref name="sigma" />
| PPhrases = {{P-phrases|210|260|280|303+361+353|304+340+310|305+351+338}}<ref name="sigma" />
| NFPA-H = 4
| NFPA-F = 0
| NFPA-R = 2
| NFPA-S = OX
| NFPA_ref =<ref name = chemicalland21 />
| LD50 = 80 mg/kg (rats, oral)<ref name = chemicalland21 />
 }}
| Section6       = 
}}
'''삼산화 크로뮴'''({{llang|en|chromium trioxide}})은 [[화학식]] CrO<sub>3</sub>을 갖는 [[무기 화합물]]이다. [[크로뮴산]]의 [[산성 산화물]]이며 동일 명칭으로 마케팅되기도 한다.<ref name = chemicalland21>{{웹 인용|url = http://www.chemicalland21.com/industrialchem/inorganic/CHROMIUM%20TRIOXIDE.htm|title = Chromium trioxide|publisher = AroKor Holdings Inc.|website = chemicalland21.com|access-date = 2014-06-15}}</ref> 이 화합물은 무수(anhydrous) 조건에서 어두운 자주색 [[고체]]이며 젖거나 물에 녹을 때 밝은 오렌지색을 나타낸다. 주로 [[전기도금]]을 목적으로 연간 수백만 킬로그램이 생산된다. 삼산화 크로뮴은 강력한 산화제이자 [[발암물질]]이다.

== 생성 ==
:H<sub>2</sub>SO<sub>4</sub> + Na<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub> → 2&nbsp;CrO<sub>3</sub> + Na<sub>2</sub>SO<sub>4</sub> + H<sub>2</sub>O

== 안전 ==
삼산화 크로뮴은 독성이 매우 강하며 부식성이 있고 발암성이 있다.<ref>{{웹 인용|url = http://hazard.com/msds/mf/baker/baker/files/c4400.htm|publisher = J. T. Baker|title = Chromium Trioxide (MSDS)|access-date = 2007-09-13|archive-url = https://web.archive.org/web/20150112092613/http://hazard.com/msds/mf/baker/baker/files/c4400.htm|archive-date = 2015-01-12|url-status = dead}}</ref>

== 각주 ==
{{각주}}

== 외부 링크 ==
* [http://www.atsdr.cdc.gov/csem/chromium ATSDR Case Studies in Environmental Medicine: Chromium Toxicity] U.S. [[Department of Health and Human Services]]
* [http://www.periodicvideos.com/videos/mv_chromium_trioxide.htm Chromium Trioxide] at ''[[The Periodic Table of Videos]]'' (University of Nottingham)
* [https://www.organic-chemistry.org/chemicals/oxidations/chromium-trioxide.shtm Reactions with Chromium Trioxide as Oxidizing Agent]

[[분류:산성 산화물]]
[[분류:크로뮴(VI) 화합물]]