Methyl-1-naphthylketon

Bezeichnung:Methyl-1-naphthylketon

CAS-Nr941-98-0

Englisch Name:1'-Acetonaphthone

CBNumberCB9854684

SummenformelC12H10O

Molgewicht170.21

MOL-Datei941-98-0.mol

Synonyma

1'-Acetonaphthon

Methyl-1-naphthylketon

Methyl-1-naphthylketon physikalisch-chemischer Eigenschaften

Schmelzpunkt	10.5 °C (lit.)
Siedepunkt	302 °C (lit.)
Dichte	1.12 g/mL at 25 °C (lit.)
Dampfdruck	0.052Pa at 25℃
Brechungsindex	n20/D 1.628(lit.)
Flammpunkt	>230 °F
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	0.2g/l
Aggregatzustand	powder
Farbe	Clear pale yellow to yellow
PH	6.5-7.0 (H2O)
Geruch (Odor)	at 10.00 % in dipropylene glycol. sweet neroli orange blossom powdery
Geruchsart	floral
Wasserlöslichkeit	immiscible
BRN	1100618
Dielectric constant	4.5（Ambient）
Expositionsgrenzwerte	ACGIH: TWA 1 mg/m3 OSHA: TWA 15 mg/m3; TWA 5 mg/m3
LogP	3.368 at 25℃
CAS Datenbank	941-98-0(CAS DataBase Reference)
NIST chemische Informationen	Ethanone, 1-(1-naphthalenyl)-(941-98-0)
EPA chemische Informationen	Ethanone, 1-(1-naphthalenyl)- (941-98-0)

Sicherheit

Kennzeichnung gefährlicher	Xi,Xn
R-Sätze:	36/37/38-22
S-Sätze:	26-36
WGK Germany	-
RTECS-Nr.	BD1200000
F	3
Hazard Note	Irritant
TSCA	Yes
HS Code	29143900
Toxizität	LD50 orl-rat: 1560 mg/kg FCTOD7 20,755,82

Gefahreninformationscode (GHS)

1'-Acetonaphthone Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R22:Gesundheitsschädlich beim Verschlucken.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
clear pale yellow to yellow liquid
Verwenden
1'-Acetonaphthone is used in the preparation of S(-)-1-(1'-naphthyl) ethanol, an important synthetic intermediate of mevinic acid analog.
Verwenden
Used as an abrasive, catalyst, absorbent in petroleum industry, filler for coatings, food additive, ceramics, glass, refractories, electrical insulators and resistors, fluxes, dental cements, and chromatographic applications.
Allgemeine Beschreibung
Stereoselective reduction of 1-acetonapthone in aqueous media by whole cells of Geotrichum candidum has been investigated in various organic co-solvents. Magnetic field effects on the photoinduced electron-transfer reaction between 1-acetonaphthone and diphenylamine in micellar solution have been studied by laser flash photolysis.
Flammability and Explosibility
Not classified
Sicherheitsprofil
Moderately toxic by ingestion. A skin irritant. A combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes
Synthese
1'-Acetonaphthone is produced from Naphthalene with Acetylchloride and Aluminum chloride (Friedel-Craft's synthesis) using Carbon disulfide as a solvent in order to favour the formation of alpha-isomer.
läuterung methode
If the NMR spectrum indicates the presence of impurities, probably 2-acetylnaphthalene, convert the substance to its picrate by dissolving in *benzene or EtOH and adding excess of saturated picric acid in these solvents until separation of picrates is complete. Recrystallise the picrate till the melting point is 118o. Decompose the picrate with dilute NaOH and extract with Et2O. Dry the extract (Na2SO4), filter, evaporate and distil the residue. The 2,4-dinitrophenylhydrazone crystallises from EtOH and has m 259o. [Stobbe & Lenzer Justus Liebigs Ann Chem 380 95 1911, Williams & Osborne J Am Chem Soc 61 3438 1939, Beilstein 7 IV 1292.]

1'-Acetonaphthone Upstream-Materialien And Downstream Produkte

Methyl-1-naphthylketon Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

941-98-0, 1'-Acetonaphthone Verwandte Suche:

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