Bis(pentan-2,4-dionato-O,O')nickel

Bezeichnung:Bis(pentan-2,4-dionato-O,O')nickel

CAS-Nr3264-82-2

Englisch Name:Nickel(II) acetylacetonate

CBNumberCB1370737

SummenformelC10H14NiO4

Molgewicht256.91

MOL-Datei3264-82-2.mol

Synonyma

Bis(pentan-2,4-dionato-O,O')nickel

Bis(pentan-2,4-dionato-O,O')nickel physikalisch-chemischer Eigenschaften

Schmelzpunkt	230 °C (dec.)(lit.)
Siedepunkt	220 °C (11 mmHg)
Dichte	0,145 g/cm³
Dampfdruck	2.7 hPa (110 °C)
Brechungsindex	1.57-1.64
Flammpunkt	>200°C
storage temp.	Store below +30°C.
Löslichkeit	4.8g/l
Aggregatzustand	Liquid
Farbe	Clear pale yellow
Wichte	1.455
Wasserlöslichkeit	soluble
Sensitive	Hygroscopic
Hydrolytic Sensitivity	0: forms stable aqueous solutions
Merck	14,6500
BRN	4157970
Expositionsgrenzwerte	NIOSH: IDLH 10 mg/m3; TWA 0.015 mg/m3
Stabilität	hygroscopic
InChIKey	YAGMVFMEBGIOTO-FGSKAQBVSA-M
LogP	0.4 at 20℃
CAS Datenbank	3264-82-2
NIST chemische Informationen	Nickel acetylacetonate(3264-82-2)
EPA chemische Informationen	Nickel, bis(2,4-pentanedionato-.kappa.O,.kappa.O')-, (SP-4-1)- (3264-82-2)

Sicherheit

Kennzeichnung gefährlicher	T,Xi,Xn
R-Sätze:	49-22-43-40
S-Sätze:	53-36/37/39-45-36/37
WGK Germany	3
RTECS-Nr.	SA2100000
TSCA	Yes
HS Code	29420000
Toxizität	LD50 orally in Rabbit: 587 mg/kg

Gefahreninformationscode (GHS)

Nickel(II) acetylacetonate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R49:Kann Krebs erzeugen beim Einatmen.
R22:Gesundheitsschädlich beim Verschlucken.
R43:Sensibilisierung durch Hautkontakt möglich.
R40:Verdacht auf krebserzeugende Wirkung.
S-Sätze Betriebsanweisung:
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
Chemische Eigenschaften
Nickel(II) acetylacetonate Ni(CH3COCHCOCH3)2, is obtained as emerald green crystals by dehydration of the dihydrate at 50°C in vacuum; it has an unusual trimeric structure in the solid state. The dihydrate Ni(CH3COCH3)2.2H2O is prepared by the addition of acetylacetone to solutions of nickel(II) salts in the presence of a weak base such as sodium acetate. Nickel(II) acetylacetonate is soluble in organic solvents and finds use in the synthesis of organometallic compounds such as nickelocene and bis(cyclooctadiene) nickel. It is also industrially important as a catalyst component in the oligomerization of alkenes and in the conversion of acetylene to cyclooctatetraene.
Verwenden
Nickel Acetylacetonate is used in preparation method of Bisphenol Dipropargyl Ether and Cyanate Ester blending resin.
Verwenden
Catalyst for organic reactions.
Verwenden
Nickel(II) acetylacetonate is usefully soluble in organic solvents and is therefore used in the Grignard synthesis of nickelocene from cyclopentadienyl magnesium halides. More ionic nickel(II) salts such as the thiocyanate can be reacted with potassium cyclopentadienide in liquid ammonia.
synthetische
Nickel(II) acetylacetonate is isolated as the dihydrate Ni(acac)2·2H2O from aqueous solutions of nickel(II) salts in the presence of acetylacetone and a weak base such as sodium acetate; it is readily dehydrated to the green anhydrous compound at 50° in vacuo. From ammoniacal solutions of nickel(II) salts the diammoniate Ni(acac)2·2NH3 precipitates; this also readily evolves the two extra ligands to give the green acetylacetonate.
Flammability and Explosibility
Not classified
Sicherheitsprofil
Confirmed human carcinogen. Poison by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating fumes.
läuterung methode
Wash the green solid with H2O, dry it in a vacuum desiccator and recrystallise it from MeOH. [Charles & Pawlikowski J Phys Chem 62 440 1958.] The complex can be conveniently dehydrated by azeotropic distillation with toluene, and the crystals may be isolated by concentrating the toluene solution. [Wilkinson et al. J Am Chem Soc 76 1970 1954, Beilstein 1 IV 3677.]

Nickel(II) acetylacetonate Upstream-Materialien And Downstream Produkte

Bis(pentan-2,4-dionato-O,O')nickel Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

3264-82-2, Nickel(II) acetylacetonate Verwandte Suche:

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