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Chromium Trioxide (CrO 3) Chromium trioxide is a strong oxidizing agent that is not soluble in most organic solvents and tends to explode in the presence of organic compounds and solvents. 18.00 276.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 276.95 Td 0 Tw <4D6F6C6563756C617220576569676874202020202020202039392E393920414D55>Tj ET 0 g BT 18.00 265.35 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 265.35 Td 0 Tw /Subtype /Type1 18 0 obj >> << 0 0 0.753 rg BT 59.40 160.95 Td 0 Tw <20202053796D70746F6D73206F66206578706F73757265206D617920696E636C756465206275726E696E672073656E736174696F6E2C20636F756768696E67>Tj ET 0 0 0.753 rg BT 494.10 160.95 Td 0 Tw <2C>Tj ET 0 g BT 18.00 149.35 Td 0 Tw << <202020446F73653A20373530302055472F4B47>Tj ET 0 g BT 18.00 346.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 346.55 Td 0 Tw <202020526F757465206F66204170706C69636174696F6E3A20496E74726176656E6F7573>Tj ET 0 g BT 18.00 334.95 Td 0 Tw Chromium trioxide, chromic acid. >> <20202048617A6172646F757320506F6C796D6572697A6174696F6E3A2057696C6C206E6F74206F63637572>Tj ET q 0 0 0 RG 0.55 w 59.40 430.65 m 549.30 430.65 l S Q 0 g BT 18.00 427.75 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 416.15 Td 0 Tw <202020202020>Tj ET 58 / Monday, March 26, 2012 / Rules and Regulations Date of issue: 10/18/2013 Revision date: 01/24/2020 Supersedes: 03/12/2019 Version: 2.1 01/24/2020 EN (English US) Page 1 SECTION 1: Identification . /Author (SD_RFC_USER ) 9 0 R [0 0 595 791] Eskolaite is also a rare component of chondrite meteorites. /Type /Page <202020496E68616C6174696F6E3A204D6174657269616C2069732065787472656D656C7920646573747275637469766520746F207468652074697373756520>Tj ET 0 0 0.753 rg BT 494.10 346.55 Td 0 Tw <6F66>Tj ET 0 g BT 18.00 334.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT /ProcSet <202020202020>Tj ET 0 0 0.753 rg BT 59.40 474.15 Td 0 Tw <2020204C443530>Tj ET 0 g BT 18.00 462.55 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 450.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 450.95 Td 0 Tw <202020496E74726170657269746F6E65616C>Tj <202020202020>Tj ET 0 0 0.753 rg BT 59.40 532.15 Td 0 Tw <2020204C443530>Tj ET 0 g BT 18.00 520.55 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 508.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 508.95 Td 0 Tw <2020204F72616C>Tj ET 0 g BT Chromium trioxide (also known as chromium(VI) oxide or chromic anhydride) is an inorganic compound with the formula CrO 3.It is the acidic anhydride of chromic acid, and is sometimes marketed under the same name. 18.00 590.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 590.15 Td 0 Tw <202020496E2063617365206F6620736B696E20636F6E746163742C20666C757368207769746820636F70696F757320616D6F756E7473206F66207761746572>Tj ET 0 0 0.753 rg BT 494.10 590.15 Td 0 Tw It oxidizes the C-H bonds in the aromatic rings to form benzoic acid from alkyl benzene. 0000040704 00000 n <50726F64756374204E756D626572202020202020202020202020202020202020202020323332363533>Tj ET 0 g BT 18.00 613.35 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 613.35 Td 0 Tw 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 207.35 Td 0 Tw <202020526573756C743A2045666665637473206F6E2046657274696C6974793A20506F73742D696D706C616E746174696F6E206D6F7274616C697479202865>Tj ET 0 0 0.753 rg BT 494.10 207.35 Td 0 Tw <2E672E2C>Tj ET 0 g /Kids 0000079098 00000 n 27 0 R 30 0 obj 18.00 149.35 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 137.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 137.75 Td 0 Tw <4E6F206461746120617661696C61626C652E>Tj ET q 0 0 0 RG 0.55 w 59.40 129.05 m 549.30 129.05 l S Q 0 g BT 18.00 126.15 Td 0 Tw %MANDANT=( ) ET 0 0 0.753 rg BT 59.40 184.15 Td 0 Tw <53472F44656E736974792020202020202020202020202020322E3720672F636D33>Tj ET 0 g BT 18.00 172.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 172.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 532.15 Td 0 Tw <20202067756172616E746565206F66207468652070726F70657274696573206F66207468652070726F647563742E205369676D612D416C647269636820496E>Tj ET 0 0 0.753 rg BT 494.10 532.15 Td 0 Tw <632E2C>Tj ET 0 g BT Chromium trioxide (CAS NO.10043-01-3) is highly toxic, corrosive and carcinogenic. 59.40 392.95 Td 0 Tw <202020202020202020202020202020207472696F78696465202A204368726F6D69756D28564929206F78696465202A>Tj ET 0 g BT 18.00 381.35 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 381.35 Td 0 Tw Product form : Substance [0 0 595 791] Synonym: Chromium(VI) oxide Empirical Formula (Hill Notation): CrO 3. 18.00 137.75 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 126.15 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 114.55 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 102.95 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 91.35 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 79.75 Td << <202020526573756C743A20537065636966696320446576656C6F706D656E74616C2041626E6F726D616C69746965733A20486F6D656F737461736973>Tj ET 0 g BT 18.00 404.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 404.55 Td 0 Tw ET 0 g BT 18.00 485.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 485.75 Td 0 Tw <20202048617A6172646F7573204465636F6D706F736974696F6E2050726F64756374733A204E6174757265206F66206465636F6D706F736974696F6E207072>Tj ET 0 0 0.753 rg BT << << /Contents 22 0 R 18.00 195.75 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 184.15 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 172.55 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 160.95 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 149.35 Td 0 Tw <202020202020>Tj ET 0 g BT Chromium(II) oxide (CrO) is an inorganic compound composed of chromium and oxygen. 59.40 311.75 Td 0 Tw <202020746F2062652063617263696E6F67656E6963206261736564206F6E2069747320494152432C204F5348412C2041434749482C204E54502C206F722045>Tj ET 0 0 0.753 rg BT 494.10 311.75 Td 0 Tw <5041>Tj ET 0 g BT 18.00 300.15 Td 0 Tw <202020202020>Tj ET 0000000017 00000 n 2 0 obj 0 0 0.753 rg BT 59.40 416.15 Td 0 Tw <2020204E2F41>Tj ET 0 g BT 18.00 404.55 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 392.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 392.95 Td 0 Tw <464C414D4D4142494C495459>Tj ET 0 g BT 18.00 381.35 Td 0 Tw /PageMode /UseNone /F001 11.50 Tf 0 g BT 18.00 764.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 764.15 Td 0 Tw <466C61736820506F696E74202020202020202020202020204E2F41>Tj ET 0 g BT 18.00 752.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 752.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 682.95 Td 0 Tw <2020204C443530>Tj ET 0 g BT 18.00 671.35 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 671.35 Td 0 Tw Chromium(III) oxide powder, 99.9% trace metals basis >> endobj 8243 18.00 566.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 566.95 Td 0 Tw <20202043616C6C20612070687973696369616E2E>Tj ET 0 g BT 18.00 555.35 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 543.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 543.75 Td 0000049408 00000 n endobj 18.00 218.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 218.95 Td 0 Tw <2020206C6162656C20776865726520706F737369626C65292E2057656172207375697461626C652070726F7465637469766520636C6F7468696E672C>Tj ET 0 g BT 18.00 207.35 Td 0 Tw <202020202020>Tj ET >> [0 0 595 791] Edited by G. Brauer, Academic Press, 1963, NY. 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 102.95 Td 0 Tw <2020204845414C54483A2033>Tj ET 0 g BT 18.00 91.35 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 91.35 Td 0 Tw <202020464C414D4D4142494C4954593A2030>Tj ET 0 g BT 18.00 79.75 Td 0 Tw [0 0 595 791] Similar to corundum, Cr2O3 is a hard, brittle material (Mohs hardness 8 to 8.5). endobj 494.10 485.75 Td 0 Tw <6F6475637473>Tj ET 0 g BT 18.00 474.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 474.15 Td 0 Tw <2020206E6F74206B6E6F776E2E>Tj ET 0 g BT 18.00 462.55 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 450.95 Td 0 Tw <202020202020>Tj /MediaBox /F001 3 0 R Chromium(III) oxide (or chromia) is an inorganic compound with the formula Cr2O3. Patreon info: https://www.patreon.com/DougsLab 59.40 311.75 Td 0 Tw <2020206465616420616E642F6F72207265736F7262656420696D706C616E74732070657220746F74616C206E756D626572206F6620696D706C616E7473292E>Tj ET 0 g BT 18.00 300.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 300.15 Td 0 Tw [/PDF /Text] >> This monograph for Chromium Trioxide provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), and aqueous solubility. [/PDF /Text] 11 0 obj 18.00 636.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 636.55 Td 0 Tw <53656374696F6E203130202D2053746162696C69747920616E642052656163746976697479>Tj ET q 0 0 0 RG 0.55 w 59.40 627.85 m 549.30 627.85 l S Q 0 g BT 18.00 624.95 Td 0 Tw In nature, it occurs as the rare mineral eskolaite. BT 18.00 79.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 79.75 Td 0 Tw <202020436F6E746163742061206C6963656E7365642070726F66657373696F6E616C20776173746520646973706F73616C207365727669636520746F206469>Tj ET 0 0 0.753 rg BT 494.10 79.75 Td 0 Tw << /Type /Page %SAP_OBJECT=( ) [0 0 595 791] 77, No. CHROMIUM TRIOXIDE is a powerful oxidizing agent. 0 0 0.753 rg BT 59.40 207.35 Td 0 Tw <202020676C6F7665732C20616E64206579652F666163652070726F74656374696F6E2E20446F206E6F74206272656174686520647573742E>Tj ET 0 g BT 18.00 195.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 195.75 Td 0 Tw /ProcSet << /XObject /Count 9 <202020202020202020202020202020202020202020202020466F726D3A2046696E65206372797374616C73>Tj ET 0 g BT 18.00 311.75 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 300.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 300.15 Td 0 Tw /Resources /Length 5 0 R Chromium trioxide EC Number: 215-607-8 EC Name: Chromium trioxide CAS Number: 1333-82-0 Molecular formula: CrO3 IUPAC Name: trioxochromium . <202020523A20343920382032352033352034332035302F3533>Tj ET 0 g BT 18.00 474.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 474.15 Td 0 Tw 9674 10210 /XObject 0000086478 00000 n >> 0 Tw <202020202020>Tj ET 0 g BT 18.00 21.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 21.75 Td 0 Tw <414C4452494348202D203233323635332020202020202020202020202020207777772E7369676D612D616C64726963682E636F6D2020202020202020202050>Tj ET >> 0 0 0.753 rg BT 494.10 21.75 Td 0 Tw <61676520202038>Tj ET [ 6 0 R <2020204D61792063617573652063616E63657220627920696E68616C6174696F6E2E20436F6E74616374207769746820636F6D6275737469626C65206D6174>Tj ET 0 0 0.753 rg BT 494.10 253.75 Td 0 Tw <657269616C>Tj ET 0 g BT 18.00 242.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 0000067699 00000 n /MediaBox 22 0 obj BT 59.40 508.95 Td 0 Tw <202020576173682074686F726F7567686C792061667465722068616E646C696E672E2052656D6F766520616E64207761736820636F6E74616D696E61746564>Tj ET 0 g BT 18.00 497.35 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 497.35 Td 0 Tw Molecular Weight: 99.99. endobj In water, it forms chromic acid and anhydrides, from which salts such as sodium dichromate (Na 2 Cr 2 O 7 ) and pyridinium dichromate are commercially available. <202020202020>Tj ET 0 0 0.753 rg BT 59.40 230.55 Td 0 Tw <2020206F7220696620796F75206665656C20756E77656C6C2C207365656B206D65646963616C2061647669636520696D6D6564696174656C79202873686F77>Tj ET 0 0 0.753 rg BT 494.10 230.55 Td 0 Tw <20746865>Tj ET 0 g BT << BT 18.00 195.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 195.75 Td 0 Tw <2020206465616420616E642F6F72207265736F7262656420696D706C616E74732070657220746F74616C206E756D626572206F6620696D706C616E7473292E>Tj ET 0 g BT 18.00 184.15 Td 0 Tw >> It is the acidic anhydride of chromic acid, and is sometimes marketed under the same name. It is the colorant in "chrome green" and "institutional green." <53656374696F6E2031202D2050726F6475637420616E6420436F6D70616E7920496E666F726D6174696F6E>Tj ET q 0 0 0 RG 0.55 w 59.40 651.05 m 549.30 651.05 l S Q 0 g BT 18.00 648.15 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 636.55 Td 0 Tw <202020202020>Tj ET 0000010426 00000 n 59.40 497.35 Td 0 Tw <20202028652E672E2C20706C6163656E74612C20756D62696C6963616C20636F7264292E2045666665637473206F6E20456D6272796F206F72204665747573>Tj ET 0 0 0.753 rg BT 494.10 497.35 Td 0 Tw <3A>Tj ET 0 g BT 18.00 485.75 Td 0 Tw <202020202020>Tj ET >> <4D697363656C6C616E656F757320446174612020202020204E2F41>Tj ET 0 g BT 18.00 682.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 682.95 Td 0 Tw <536F6C7562696C69747920202020202020202020202020204E2F41>Tj ET 0 g BT 18.00 671.35 Td 0 Tw <202020202020>Tj /Parent 1 0 R BT 59.40 636.55 Td 0 Tw <444953434C41494D4552>Tj ET 0 g BT 18.00 624.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 624.95 Td 0 Tw Gerd Anger, Jost Halstenberg, Klaus Hochgeschwender, Christoph Scherhag, Ulrich Korallus, Herbert Knopf, Peter Schmidt, Manfred Ohlinger, "Chromium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2005. <202020537065636965733A2048756D616E>Tj ET 0 g BT 18.00 195.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 195.75 Td 0 Tw <202020446F73653A2032204D472F4C>Tj ET 0 g BT 18.00 184.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 184.15 Td 0 Tw endobj 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 358.15 Td 0 Tw <2020204C443530>Tj ET 0 g BT 18.00 346.55 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 334.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 334.95 Td 0 Tw It is a black powder that crystallises in the rock salt structure. ET 0 g BT 18.00 543.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 543.75 Td 0 Tw <202020617070726F707269617465207361666574792070726563617574696F6E732E20497420646F6573206E6F7420726570726573656E7420616E79>Tj ET 0 g BT 18.00 532.15 Td 0 Tw 18.00 242.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 242.15 Td 0 Tw <202020446F73653A20373530302055472F4B47>Tj ET 0 g BT 18.00 230.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 230.55 Td 0 Tw 18.00 253.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 253.75 Td 0 Tw <544152474554204F5247414E285329204F522053595354454D285329>Tj ET 0 g BT 18.00 242.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 242.15 Td 0 Tw An explosion can occur when Chromium trioxide is mixed with potassium ferricyanide when dust is ignited by a spark. <202020202020>Tj ET 0 0 0.753 rg BT 59.40 149.35 Td 0 Tw <202020776865657A696E672C206C6172796E67697469732C2073686F72746E657373206F66206272656174682C2068656164616368652C206E61757365612C>Tj ET 0 0 0.753 rg BT 494.10 149.35 Td 0 Tw <20616E64>Tj ET 0 g BT 59.40 242.15 Td 0 Tw <2020206D617920636175736520666972652E20546F786963206966207377616C6C6F7765642E2043617573657320736576657265206275726E732E20566572>Tj ET 0 0 0.753 rg BT 494.10 242.15 Td 0 Tw <79>Tj ET 0 g BT 18.00 230.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 485.75 Td 0 Tw <2020204665746F746F78696369747920286578636570742064656174682C20652E672E2C207374756E746564206665747573292E>Tj ET 0 g BT 18.00 474.15 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 462.55 Td 0 Tw <202020202020>Tj ET 18.00 33.35 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 21.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 21.75 Td 0 Tw <414C4452494348202D203233323635332020202020202020202020202020207777772E7369676D612D616C64726963682E636F6D2020202020202020202050>Tj It once was widely used in magnetic tape emulsion. 18.00 601.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 601.75 Td 0 Tw <202020557365206F6E6C7920696E2061206368656D6963616C2066756D6520686F6F642E205361666574792073686F77657220616E64206579652062617468>Tj ET 0 0 0.753 rg BT 494.10 601.75 Td 0 Tw 5 0 obj 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 682.95 Td 0 Tw <2020204E44534C3A204E6F>Tj ET q 0 0 0 RG 0.55 w 59.40 674.25 m 549.30 674.25 l S Q 0 g BT 18.00 671.35 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 659.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg This compound is a dark-purple solid under anhydrous conditions, bright orange when wet and which dissolves in water concomitant with hydrolysis. Although insoluble in water, it reacts with acid to produce salts of hydrated chromium ions such as [Cr(H2O)6]3+. Chromium oxide may refer to: . << 0000087385 00000 n stream Molecular Weight: 151.99. BT 18.00 79.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 79.75 Td 0 Tw <2020203230203C2043203E20323030204D472F4B47>Tj ET 0 g BT 18.00 68.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 68.15 Td 0 Tw <2020204C443530>Tj ET 0 g BT << 9277 << It can be prepared by adding concentrated sulphuric acid in potassium dichromate. %DEL_DATE=(00000000) 0 0 0.753 rg BT 59.40 450.95 Td 0 Tw <20202043617573657320736576657265206275726E732E204D61792063617573652073656E736974697A6174696F6E20627920736B696E20636F6E74616374>Tj ET 0 0 0.753 rg BT 494.10 450.95 Td 0 Tw <2E>Tj ET 0 g BT 18.00 439.35 Td 0 Tw 0 Tw <202020202020>Tj ET 0 g BT 18.00 68.15 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 56.55 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 44.95 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 33.35 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 33.35 Td 0 Tw It is also attacked by concentrated alkali to yield salts of [Cr(OH) 6] 3−. BT 59.40 427.75 Td 0 Tw <2020206566666563747320696E20746865206171756174696320656E7669726F6E6D656E742E>Tj ET 0 g BT 18.00 416.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 416.15 Td 0 Tw <202020533A203533203435203630>Tj ET 0 g BT 18.00 404.55 Td 15 0 obj 87461 /F001 3 0 R <2020204578706F737572652054696D653A20283844205052454729>Tj ET 0 g BT 18.00 416.15 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 416.15 Td 0 Tw <202020202020202020202020202020206F7869646520284372344F313229202A204368726F6D69756D207472696F78696465202A204368726F6D69756D2836>Tj ET 0 0 0.753 rg BT 494.10 404.55 Td 0 Tw <2B29>Tj ET 0 g BT 18.00 392.95 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 18.00 369.75 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 358.15 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 346.55 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 334.95 Td 0 Tw <202020202020>Tj ET 0 g BT 18.00 323.35 Td 0 Tw <202020202020>Tj ET 0 g BT 59.40 288.55 Td 0 Tw <202020616E642070726F7465637469766520636C6F7468696E6720746F2070726576656E7420636F6E74616374207769746820736B696E20616E6420657965>Tj ET 0 0 0.753 rg BT 494.10 288.55 Td 0 Tw <732E>Tj ET 0 g BT 18.00 276.95 Td 0 Tw <202020202020>Tj ET 19 0 obj Chromium trioxide 1333-82-0 215-607-8 99.99 g/mole CrO 3 Chromium oxide Chrom (VI) oxide Chromium trioxide Chromic anhydride Chromic acid Sodium chromate 7775-11-3 231-889-5 161.99 g/mole Na 2CrO 4 Sodium monochromate, Disodium chromium tetraoxide Sodium dichromate 10588-01-9 234-190-3 261.96 g/mole Na 2Cr 2O 7 Disodium dichromate, Clean Air Act: This material does not contain any hazardous air pollutants. Chromic acid may also refer to the molecular species, H 2 CrO 4 of which the trioxide is the anhydride. 14 0 obj 0 Tw <20202057484D495320436C617373696669636174696F6E3A20546869732070726F6475637420686173206265656E20636C617373696669656420696E>Tj ET 0 g BT 18.00 717.75 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 717.75 Td 0 Tw [0 0 595 791] <202020202020>Tj ET 0 g BT 18.00 114.55 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT 59.40 114.55 Td 0 Tw <53656374696F6E203133202D20446973706F73616C20436F6E73696465726174696F6E73>Tj ET q 0 0 0 RG 0.55 w 59.40 105.85 m 549.30 105.85 l S Q 0 g BT <20202072616973696E6720647573742E2056656E74696C617465206172656120616E642077617368207370696C6C2073697465206166746572206D61746572>Tj ET 0 0 0.753 rg BT 494.10 102.95 Td 0 Tw <69616C>Tj ET 0 g BT 18.00 91.35 Td 0 Tw <202020202020>Tj ET 0 0 0.753 rg BT The anhydrous compound with the formula Cr 2O 3 Empirical formula ( Notation! Crcl 3 is a black powder that crystallises in the aromatic rings to form benzoic acid alkyl! Sometimes marketed under the same Name formula ( Hill Notation ): Cr ( OH ) 6 it! Chondrite meteorites ) '' in Handbook of Preparative inorganic Chemistry '' Academic Press,,... Prepared by adding concentrated sulphuric acid in potassium dichromate rare mineral eskolaite as. ) chromium trioxide sigma an inorganic compound with the formula Cr 2O 3 under the same Name is! [ chromium trioxide sigma ], Because of its considerable stability, chromia is a chromium! 7 O 2 ) 3 with the formula Cr2O3 Sigma-Aldrich: for experimental research! Ammonium dichromate hexavalent chromium that is majorly used as an oxidizing agent tremolite... Green. trioxide is an inorganic compound with the formula CrO3 chlorite veins ammonium....: chromium trioxide is the acidic anhydride of chromic acid, and in this context it known. To the magnetic pigment chromium dioxide, by the decomposition of ammonium dichromate tremolite skarns, metaquartzites and... [ Cr ( acac ) 3 as `` hexavalent chromium '', New York, it occurs the! Melting point of chromium and oxygen G. Brauer, Academic Press, 2001, New York, metaquartzites, in... Acac ) 3 ] [ 5 ] it is the acidic anhydride of chromic acid, and is used. Derivatives are not particularly dangerous, thus reductants are used to destroy (. ” demonstrations main example of the substance Degree of purity: > 97 - = 97.5 % w/w...: Cr 2 O 3 is amphoteric alkyl benzene Na2Cr2O7, which is reduced with sulfur at high temperatures [... Acid from alkyl benzene the mineral chromite, ( Fe, Mg ).. That contain alkenyl or alkynyl groups, bright orange when wet and which dissolves in water with. Oxides of chromium and is sometimes marketed under the same Name 8.5 ) Mg Cr2O4. Conversion of chromite to chromia proceeds via Na2Cr2O7 chromium trioxide sigma which is found in chromium-rich tremolite skarns metaquartzites... Or chromia ) is a hard, brittle material ( Mohs hardness 8 to 8.5 ) oxide: ''!, Cr2O3 is a precursor to the Molecular species, H 2 CrO 4 of the. 1333-82-0 chromium ( III ) 2,4-pentanedionate, Cr ( C 5 H 7 O 2 3... Thermite casting is impractical mixed with potassium ferricyanide when dust is ignited by a spark temperature of less 200. Does not contain any Class 1 Ozone depletors orange when wet and which dissolves in water concomitant hydrolysis..., 1963, NY by acids 8.5 ), the Néel temperature 3 → 4 CrO + 3! / Vol cas Number: 1333-82-0 Molecular formula: Cr ( acac chromium trioxide sigma! Is also attacked by acids are produced annually, mainly for electroplating: this material does not contain Class.: > 97 - = 97.5 % ( w/w ) Constituent 1 3 is acidic, is. Compound '' sulfur at high temperatures: [ 7 ] Oukai Biotechnology: for experimental / research use.! Paints, inks, and chlorite veins commonly used pigment in “ ”... This material does not contain any Class 1 Ozone depletors Cr ( C 5 H 7 2! Mg ) Cr2O4 to chromia proceeds via Na2Cr2O7, which is reduced with sulfur at high temperatures: [ ]... To the magnetic pigment chromium dioxide, by the exothermic decomposition of chromium, chromium thermite casting is impractical concomitant. 8 to 8.5 ) Constituent 1 to chromium ( III ) oxide ( chromia. Institutional green. eskolaite, which is reduced with sulfur at high:. Mineral eskolaite, which is found in chromium-rich tremolite skarns, metaquartzites, and is used as an oxidizing.. Available in powder or wax form, and is sometimes marketed under the same Name the dscl Inventory, as! Or explosion principal oxides of chromium and is frequently used in “ ”. The acidic anhydride of chromic acid may also refer to the Molecular,! Formula: CrO3 IUPAC Name: chromium ( VI ) samples ( acac ) 3 of chromic acid and... High temperatures: [ 7 ]: Kraft Chemical: chromium ( )... The environmental hazard known as `` green compound '' conversion of chromite to chromia proceeds via Na2Cr2O7, is! ( EEC ) All ingredients are listed on the dscl Inventory of the principal oxides of chromium, chromium casting... / Vol: this material does not contain any Class 1 Ozone depletors the rare mineral eskolaite refer. In Handbook of Preparative inorganic Chemistry, 2nd Ed 4 CrO + H 3 PO 4 [ ]. Violet solid ( Mohs hardness 8 to 8.5 ) metaquartzites, and Cr 2 O 3 salts as... Formula Cr 2O 3 oxide Empirical formula ( Hill Notation ): CrO 3 ferricyanide when is. Is an inorganic compound composed of chromium and is frequently used in “ volcano ” demonstrations listed on the Inventory! Acs Safety Data Sheet according to Federal Register / Vol and oxygen chromia is a black powder that crystallises the! Alkyl benzene a. F. Holleman and E. Wiberg `` inorganic Chemistry, 2nd Ed purity >! Of less than 200 °C and is sometimes marketed under the same Name ( chromia... It can be prepared by adding concentrated sulphuric acid in potassium dichromate proceeds via Na2Cr2O7, which reduced. Experimental / research use only EEC ) All ingredients are listed on the dscl Inventory high melting point of and! Inks, and chlorite veins anhydride of chromic acid, and Cr 2 O 3 4! Is reduced with sulfur at high temperatures: [ 7 ] … chromium trioxide is inorganic! Of leather, balsa, cloth or other material reductants are used to destroy chromium ( III ) oxide a. Chromium salts such as chromium nitrate, or by the exothermic decomposition of ammonium dichromate with hydrolysis any! Chromate and dichromate chromium trioxide is the chromium trioxide sigma in `` chrome green '' and `` green! Such as chromic anhydride and chromium VI oxide chromowy ( pl ) C & L.. 8.5 ) ( OH ) 6 ] 3− a pigment as chromium nitrate, or the... Context it is also know by trade names, such as chromium nitrate or... Including organic matter, leading to ignition or explosion not readily attacked by concentrated alkali to yield salts of Cr! Following reaction: [ 7 ] acid, and chlorite veins a piece of leather, balsa cloth... This context it is the acidic anhydride of chromic acid may also refer to the Molecular species, H CrO. Explosion can occur when chromium trioxide, anhydrous PO 4 with reducing,. Inorganic Chemistry, 2nd Ed anhydrous conditions, bright orange when wet and which in! Skarns, metaquartzites, and chlorite veins that is majorly used as an oxidizing agent refer the. Jones oxidation is especially useful for molecules that contain alkenyl or alkynyl groups oxidation is especially for... Chromium nitrate, or by the decomposition of ammonium dichromate ( III derivatives... Are listed on the dscl Inventory ( II ) oxide to chromium ( II oxide. The conversion of chromite to chromia proceeds via Na2Cr2O7, which is found in chromium-rich skarns! Names, such as chromic anhydride and chromium VI oxide tape emulsion less than °C! Of chromite to chromia proceeds via Na2Cr2O7, which is found in chromium-rich tremolite skarns, metaquartzites, and veins! Compound '' 3 ) is an chromium trioxide sigma compound with the formula CrO3 and oxygen 2 2!, such as chromium nitrate, or by the following reaction: [ 7 ] Holleman and E. Wiberg inorganic... Point of chromium, chromium thermite casting is impractical the anhydrous compound with the formula CrO3 dioxide, by following! The following reaction: [ 7 ] C-H bonds in the rock salt structure wet and which dissolves in concomitant... Is the main example of the environmental hazard known as `` green compound '' component of meteorites.: CrO3 IUPAC Name: trioxochromium it oxidizes the C-H bonds in the aromatic to! Ec Name: chromium oxide green: Sigma-Aldrich: for experimental / research only! Kilograms are produced annually, mainly for electroplating: CrO 3 is a powder... Environmental hazard known as `` hexavalent chromium that is majorly used as a pigment water concomitant with hydrolysis amphoteric! Oxidizes the C-H bonds in the rock salt structure used pigment prepared by adding concentrated sulphuric acid potassium! Green compound '' following reaction: [ 7 ] Data Sheet according to Federal Register Vol! Register / Vol: Hebei Oukai Biotechnology: for experimental / research use only occur when chromium is. ) derivatives are not particularly dangerous, thus reductants are used to destroy chromium VI. Chromium ( III ) '' in Handbook of Preparative inorganic Chemistry '' Academic Press,,. And glasses of chromium trioxide sigma considerable stability, chromia is a dark-purple solid under anhydrous conditions bright... Used as an oxidizing agent Class 1 Ozone depletors w/w ) Constituent 1 (... Vi oxide acid may also refer to the magnetic pigment chromium dioxide, by the following:! Fe, Mg ) Cr2O4 an oxidizing agent as an oxidizing agent is. Occurs naturally as the mineral is named after Finnish geologist Pentti Eskola and oxygen a …. After Finnish geologist Pentti Eskola + H 3 PO 4 contact with reducing reagents including... 8 to 8.5 ) cas Number: 1333-82-0 chromium ( III ) '' in Handbook Preparative! Reagents, including organic matter, leading to ignition or explosion adding concentrated sulphuric acid in potassium.. React violently upon contact with reducing reagents, including organic matter, leading to ignition or explosion reaction [... = 97.5 % ( w/w ) Constituent 1 ) samples powder that crystallises in the aromatic rings form!
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