2-Methyl-cyclohexanon

Bezeichnung:2-Methyl-cyclohexanon

CAS-Nr583-60-8

Englisch Name:2-Methylcyclohexanone

CBNumberCB5853876

SummenformelC7H12O

Molgewicht112.17

MOL-Datei583-60-8.mol

Synonyma

2-Methylcyclohexanon

2-Methyl-cyclohexanon

2-Methyl-cyclohexanon physikalisch-chemischer Eigenschaften

Schmelzpunkt	-14 °C
Siedepunkt	162-163 °C (lit.)
Dichte	0.924 g/mL at 25 °C (lit.)
Dampfdruck	1 at 20 °C (NIOSH, 1997)
FEMA	3946 \| 2-METHYLCYCLOHEXANONE
Brechungsindex	n20/D 1.448(lit.)
Flammpunkt	116 °F
storage temp.	Sealed in dry,2-8°C
Löslichkeit	Soluble in alcohol, ether (Weast, 1986), and many other polar organic solvents including cyclohexanone.
Aggregatzustand	Liquid
Farbe	Clear colorless to very slightly yellow
Geruch (Odor)	at 10.00 % in dipropylene glycol. minty peppermint cooling
Geruchsart	minty
Explosionsgrenze	1.2%(V)
Wasserlöslichkeit	Insoluble in water. Soluble in methanol and diethyl ether.
JECFA Number	1102
BRN	506751
Expositionsgrenzwerte	TLV-TWA 230 mg/m³ (50 ppm) (ACGIH); STEL 345 mg/m³ (75 ppm); IDLH 2500 ppm (NIOSH).
Dielectric constant	14.0（20℃）
InChIKey	LFSAPCRASZRSKS-UHFFFAOYSA-N
LogP	1.54 at 25℃
CAS Datenbank	583-60-8(CAS DataBase Reference)
NIST chemische Informationen	Cyclohexanone, 2-methyl-(583-60-8)
EPA chemische Informationen	2-Methylcyclohexanone (583-60-8)

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	10-20-20/21/22
S-Sätze:	25-36/37
RIDADR	UN 2297 3/PG 3
OEB	A
OEL	TWA: 50 ppm (230 mg/m3), STEL: 75 ppm (345 mg/m3) [skin]
WGK Germany	1
RTECS-Nr.	GW1750000
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29142200
Giftige Stoffe Daten	583-60-8(Hazardous Substances Data)
Toxizität	Acute oral LD₅₀ for rats 2,140 mg/kg, rabbits 1 g/kg (quoted, RTECS, 1985).
IDLA	600 ppm

Gefahreninformationscode (GHS)

2-Methylcyclohexanone Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R10:Entzündlich.
R20:Gesundheitsschädlich beim Einatmen.
S-Sätze Betriebsanweisung:
S25:Berührung mit den Augen vermeiden.
Aussehen Eigenschaften
C7H12O; Tetrahydro-o-kresol. Farblose Flüssigkeit mit fruchtigem Geruch.
Gefahren für Mensch und Umwelt
Gesundheitsschädlich beim Einatmen.
Entzündlich.
LD₅₀ (oral, Ratte): 2140 mg/kg
Schutzmaßnahmen und Verhaltensregeln
Schutzhandschuhe als kurzzeitiger Spritzschutz.
Verhalten im Gefahrfall
Persönliche Maßnahmen: Dämpfe nicht einatmen.
Mit flüssigkeitsbindendem Material aufnehmen. Der Entsorgung zuführen. Nachreinigen.
Kohlendioxid, Pulver.
Brennbar. Dämpfe schwerer als Luft. Mit Luft Bildung explosionsfähiger Gemische möglich.
Erste Hilfe
Nach Hautkontakt: Mit reichlich Wasser abwaschen.
Nach Augenkontakt: Mit reichlich Wasser bei geöffnetem Lidspalt mindestens 15 Minuten ausspülen. Sofort Augenarzt hinzuziehen.
Nach Einatmen: Frischluft. Arzt hinzuziehen.
Nach Verschlucken: Reichlich Wasser trinken. Erbrechen auslösen. Sofort Arzt hinzuziehen.
Nach Kleidungskontakt: Kontaminierte Kleidung sofort entfernen.
Ersthelfer: siehe gesonderten Anschlag
Sachgerechte Entsorgung
Als halogenfreie, organische Lösemittelabfälle.
Beschreibung
o-Methylcyclohexanone is a colorless liquid with a weak peppermint-like odor (also reported to be ace-tone-like). Molecular weight= 112.19; Specific gravity(H2O:1) = 0.93; Boiling point= 162.7℃; Freezing/Meltingpoint= - 13.9℃;Flashpoint = 47.8℃.HazardIdentification (based on NFPA-704 M Rating System):Health 2, Flammability 2, Reactivity 0. Insoluble in water.
Chemische Eigenschaften
2-Methylcyclohexanone has a weak, peppermint odor and burning sensation
Chemische Eigenschaften
o-Methylcyclohexanone is a colorless liquid with a weak peppermint-like odor (also reported to be acetone-like).
Chemische Eigenschaften
CLEAR COLOURLESS TO VERY SLIGHTLY YELLOW LIQUID
Physikalische Eigenschaften
Colorless liquid with a weak, peppermint-like odor.
Occurrence
Reported found in cockroaches as attractant pheromone; not reported found in natural foods
Verwenden
o-Methyl cyclohexanone is used as a solventfor varnishes, lacquers, and plastics; and asa rust remover.
Verwenden
Solvent; rust remover
Verwenden
2-Methylcyclohexanone can be used as solvent, lacquers.
It has been suggested for use in soap perfumes, industrial fragrances, masking odors, etc. where its power and stability come to use. It may give "lift" to woody soap perfumes and add power to spicy-herbaceous fragrances, but its proper odor is not exactly beautiful.
Vorbereitung Methode
2-Methylcyclohexanone is manufactured by the catalytic hydrogenation of o-cresol or by the dehydrogenation of o-methylcyclohexanol. Methylcyclohexanones are used in small amounts as general purpose solvents for cellulose-based finishes and coatings.
synthetische
From cyclohexanone by treatment with a base and then with methyl iodide
Synthesis Reference(s)
Journal of the American Chemical Society, 108, p. 304, 1986 DOI: 10.1021/ja00262a025
Synthetic Communications, 8, p. 9, 1978 DOI: 10.1080/00397917808062176
Synthesis, p. 611, 1976 DOI: 10.1055/s-1976-24139
Allgemeine Beschreibung
A water-white to pale yellow liquid with an acetone-like odor. Less dense than water. Vapors heavier than air. Flash point near 135°F. May be toxic by ingestion. Used as a solvent.
Air & Water Reaktionen
Flammable. Slightly soluble in water.
Reaktivität anzeigen
Contact with strong oxidizers may cause fires and explosions [USCG, 1999].
Hazard
Moderate fire risk. Toxic by ingestion,inhalation, and skin absorption. Eye and upper res-piratory tract irritant, and central nervous systemimpairment.
Health Hazard
May cause irritation of the eyes, nose and throat. Prolonged or repeated contact may cause dermatitis.
Health Hazard
o-Methyl cyclohexanone is a mildly toxiccompound. Any health hazard from inhalingits vapors is low. Its vapors at highconcentrations in air can be irritating to theeyes, nose, and throat. Ingestion of the liquidcan cause sleepiness. Toxicity studies on animalssuggest that methyl cyclohexanone maycause an adverse effect on the lungs, kidney,and liver. An intravenous administration of270 mg/kg was lethal to mice.
LD50 value, intraperitoneal (mice): 200mg/kg.
Brandgefahr
Special Hazards of Combustion Products: Irritating vapors and toxic gases, such as carbon monoxide, may be formed when involved in fire.
Flammability and Explosibility
Flammable
Sicherheitsprofil
Poison by intraperitoneal route. Moderately toxic by ingestion and skin contact. When heated to decomposition it emits acrid smoke and irritating fumes.
mögliche Exposition
Methylcyclohexanone is used as a solvent in making varnish, plastics, and as a rust remover. Also used in the leather industry.
Erste Hilfe
this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.
Lager
Color Code—Red: Flammability Hazard: Store ina flammable liquid storage area or approved cabinet awayfrom ignition sources and corrosive and reactive materials.Prior to working with this chemical you should be trainedon its proper handling and storage. o-methylcyclohexanonemust be stored to avoid contact with strong oxidizers (suchas chlorine, bromine, and fluorine) because violent reactionsoccur. Sources of ignition, such as smoking and openflames, are prohibited where o-Methylcyclohexanone isused, handled, or stored in a manner that could create apotential fire or explosion hazard. Metal containers involving the transfer of 5 gallons or more of this chemical shouldbe grounded and bonded. Drums must be equipped withself-closing valves, pressure vacuum bungs, and flamearresters. Use only nonsparking tools and equipment, especially when opening and closing containers of this chemical. Wherever this chemical is used, handled, manufactured,or stored, use explosion-proof electrical equipment andfittings.
Versand/Shipping
UN2297 Methylcyclohexanone, Hazard Class: 3; Labels: 3-Flammable liquid.
Inkompatibilitäten
Vapors may form explosive mixture with air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Contact with peroxides may form unstable heat- and shock-sensitive explosives
Waste disposal
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed

2-Methylcyclohexanone Upstream-Materialien And Downstream Produkte

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