| 词条 | Tert-Butyl chromate |
| 释义 |
| Name = tert-Butyl chromate | ImageFile = Chromsäure-di-tert.-butylester.svg | ImageSize = | ImageAlt = | IUPACName = tert-Butyl chromate | OtherNames = Di-tert-butyl ester of chromic acid; Bis(tert-butyl)chromate | SystematicName = | Section1 = {{Chembox Identifiers | CASNo = 1189-85-1 | RTECS = GB2900000 | PubChem = 102059956 | PubChem_Comment = wrong formula | SMILES = O([Cr](OC(C)(C)C)(=O)=O)C(C)(C)C | ChemSpiderID = 11649895 | InChI = 1/2C4H9O.Cr.2O/c2*1-4(2,3)5;;;/h2*1-3H3;;;/q2*-1;+2;;/rC8H18CrO4/c1-7(2,3)12-9(10,11)13-8(4,5)6/h1-6H3 | InChIKey = PNWJTIFZRHJYLK-PZTLRDNSAU | StdInChI = 1S/2C4H9O.Cr.2O/c2*1-4(2,3)5;;;/h2*1-3H3;;;/q2*-1;+2;; | StdInChIKey = PNWJTIFZRHJYLK-UHFFFAOYSA-N | Section2 = {{Chembox Properties | Formula = [(CH3)3CO]2CrO2 | MolarMass = 230.3 g/mol[1] | Appearance = red oil | Density = | MeltingPtC = -2.8 | MeltingPt_notes = [2] | BoilingPt = | Solubility = Miscible[2] | Section3 = {{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = | IDLH = Ca [15 mg/m3 {as Cr(VI)}][1] | REL = Ca TWA 0.001 mg Cr(VI)/m3[1] | PEL = TWA 0.005 mg CrO3/m3 [skin][1] | Section4 = | Section5 = | Section6 = }}tert-Butyl chromate is an industrial chemical and carcinogen. It is prepared by treatment of t-butanol with chromic anhydride. It forms red crystals at temperatures below –5 °C, above which it melts to give a red oil.[2] ApplicationsIt is used as an organic source of chromium, in making catalysts and as an oxidant in organic synthesis, and as a curing agent for urethane foams.[3] Safetytert-Butyl chromate reacts strongly with reducing agents, moisture, acids, alcohols, hydrazine, and other combustible materials. tert-Butyl chromate is itself flammable. It is designated a potential occupational carcinogen by the United States National Institute for Occupational Safety and Health, as it may cause lung cancer. Symptoms of exposure to tert-butyl chromate can include eye, skin, and respiratory irritation; eye and skin burns; drowsiness, muscle weakness; skin ulcers; nausea; vomiting; diarrhea; dyspnea; and cough.[1][4]References1. ^1 2 3 4 {{PGCH|0080}} {{DEFAULTSORT:Butyl chromate, tert-}}2. ^{{Citation|last=Freeman|first=Fillmore|date=2001-04-15|publisher=John Wiley & Sons, Ltd|language=en|doi=10.1002/047084289x.rd059m|isbn=978-0471936237|title=Encyclopedia of Reagents for Organic Synthesis|chapter=Di-tert-butyl Chromate}} 3. ^{{cite web | title = Hazardous Substance Fact Sheet | publisher = New Jersey Department of Health | url = http://nj.gov/health/eoh/rtkweb/documents/fs/1788.pdf}} 4. ^1 2 {{cite web |url = https://www.cdc.gov/niosh/ipcsneng/neng1533.html |title = Tert-butyl chromate |work = International Chemical Safety Cards |publisher = NIOSH |date = July 1, 2014}} 2 : Chromates|Tert-butyl compounds |
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