| 词条 | 3-Heptanone |
| 释义 |
| verifiedrevid = | ImageFile = 3-heptanone.svg | ImageFile_Ref = {{Chemboximage|correct|??}} | ImageSize = | ImageName = Skeletal formula of 3-Heptanone | IUPACName = Heptan-3-one | OtherNames = Ethyl butyl ketone 3-Oxoheptane Butyl ethyl ketone |Section1={{Chembox Identifiers | CASNo = 106-35-4 | CASNo_Ref = {{cascite|correct|CAS}} | PubChem = 24901132 | ChemSpiderID = 7514 | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | EINECS = 203-388-1 | UNNumber = 1224 | MeSHName = 3-Heptanone | RTECS = MJ5250000 | Beilstein = 506161 | ChEBI = 50139 | SMILES = CCC(=O)CCCC | StdInChI = | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} }} |Section2={{Chembox Properties | C=7 | H=14 | O=1 | Appearance = Colorless liquid | Odor = powerful, fruity[1] | Density = 0.812 g cm−3 | MeltingPtC = -39 | BoilingPtC = 146 to 149 | Solubility = 1% (20 °C)[1] | VaporPressure = 4 mmHg (20 °C)[1] }} |Section3={{Chembox Hazards | ExternalSDS = [1] | EUClass = | RPhrases = {{R10}}, {{R22}} | SPhrases = {{S23}} | NFPA-H = | NFPA-F = | NFPA-R = | FlashPtC = 41 | PEL = TWA 50 ppm (230 mg/m3)[2] | IDLH = 1000 ppm[2] | REL = TWA 50 ppm (230 mg/m3)[2] | LD50 = 2760 mg/kg (rat, oral)[3] }} }}3-Heptanone (butyl ethyl ketone), is a seven carbon ketone. It is a colorless liquid with a "green odor," also described to have a fruity scent. It is often used as a perfume/fragrance, as a solvent for cellulose, nitrocellulose, or vinyl resins, and as a synthetic building block in the preparation of other organic molecules.[4] Preparation3-Heptanone is produced industrially through reductive condensation of propionaldehyde (propanal) with butanone (methyl ethyl ketone). This reaction yields hept-4-en-3-one, which is subsequently hydrogenated to 3-heptanone. {{chem|CH|3|CH|2|CHO|link=propanal}} + {{chem|CH|3|C(O)CH|2|CH|3|link=butanone}} → {{chem|CH|3|CH|2|C(O)CHCHCH|2|CH|3}} + {{chem|H|2|O|link=water}} {{chem|CH|3|CH|2|C(O)CHCHCH|2|CH|3}} + {{chem|H|2|link=hydrogen}} → {{chem|CH|3|CH|2|C(O)CH|2|CH|2|CH|2|CH|3}} References1. ^http://www.chemicalbook.com/ProductMSDSDetailCB0852672_EN.htm External MSDS {{DEFAULTSORT:Heptanone, 3-}}2. ^1 2 3 4 5 {{PGCH|0266}} 3. ^{{IDLH|106354|Ethyl butyl ketone}} 4. ^{{cite encyclopedia|last1 = Siegel|first1 = Hardo|last2 = Eggersdorfer|first2 = Manfred|title = Ketones|encyclopedia = Ullmann's Encyclopedia of Industrial Chemistry|year = 2012|volume = 20|page = 195|doi = 10.1002/14356007.a15_077}} 1 : Alkanones |
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