| Identification | More | [Name]
1'-Acetonaphthone | [CAS]
941-98-0 | [Synonyms]
ACTIVATED ALUMINA, WEAKLY ACIDIC
ALCOA NO CG20
ALPHA-ALUMINA
ALPHA-ALUMINUM (III) OXIDE
ALUMINA
ALUMINA A
ALUMINA A 18-32
ALUMINA, ACID, BROCKMAN ACTIVITY I
ALUMINA, ACTIVATED
ALUMINA ACTIVATED 200
ALUMINA ACTIVATED 300
ALUMINA, ACTIVATED, ACIDIC, BROCKMANN I
ALUMINA, ACTIVATED, BASIC
ALUMINA, ACTIVATED, BASIC, BROCKMANN I
ALUMINA, ACTIVATED, NEUTRAL, BROCKMANN I
ALUMINA, ADSORPTION
ALUMINA A-TLC
ALUMINA B
ALUMINA B-0
ALUMINA B-10 | [EINECS(EC#)]
215-691-6 | [Molecular Formula]
C12H10O | [MDL Number]
MFCD00003424 | [Molecular Weight]
170.21 | [MOL File]
941-98-0.mol |
| Chemical Properties | Back Directory | [Appearance]
clear pale yellow to yellow liquid | [Melting point ]
10.5 °C (lit.) | [Boiling point ]
302 °C (lit.) | [density ]
1.119 | [vapor pressure ]
0.052Pa at 25℃ | [refractive index ]
n20/D 1.628(lit.)
| [Fp ]
>230 °F
| [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
0.2g/l | [form ]
powder
| [color ]
Clear pale yellow to yellow | [Odor]
at 10.00 % in dipropylene glycol. sweet neroli orange blossom powdery | [PH]
6.5-7.0 (H2O) | [Odor Type]
floral | [Water Solubility ]
immiscible | [BRN ]
1100618 | [Dielectric constant]
4.5（Ambient） | [Exposure limits]
ACGIH: TWA 1 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3 | [LogP]
3.368 at 25℃ | [CAS DataBase Reference]
941-98-0(CAS DataBase Reference) | [NIST Chemistry Reference]
Ethanone, 1-(1-naphthalenyl)-(941-98-0) | [EPA Substance Registry System]
941-98-0(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,Xn | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R22:Harmful if swallowed. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
-
| [RTECS ]
BD1200000
| [F ]
3 | [Hazard Note ]
Irritant | [TSCA ]
Yes | [HS Code ]
29143900 | [Safety Profile]
Moderately toxic by ingestion. A skin irritant. A combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes | [Toxicity]
LD50 orl-rat: 1560 mg/kg FCTOD7 20,755,82 |
| Hazard Information | Back Directory | [Chemical Properties]
clear pale yellow to yellow liquid | [Uses]
1'-Acetonaphthone is used in the preparation of S(-)-1-(1'-naphthyl) ethanol, an important synthetic intermediate of mevinic acid analog.
| [General Description]
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]
Notclassified | [Purification Methods]
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.] |
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