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Nickel(II) acetylacetonate

Physical Properties Uses Preparation
Nickel(II) acetylacetonate
Nickel(II) acetylacetonate structure
CAS No.
3264-82-2
Chemical Name:
Nickel(II) acetylacetonate
Synonyms
Ni(acac)2;(II) acetyL;Acetylacetonenickel;Ni(acac)2;NICKEL PENTANEDIONATE;NICKEL ACETYLACETONATE;Acetylacetonate nickel;Acetylacetonato nickel;Nickel(II) acetylaceton;BIS(ACETYLACETONATO)(II)
CBNumber:
CB1370737
Molecular Formula:
C10H14NiO4
Formula Weight:
256.91
MOL File:
3264-82-2.mol

Nickel(II) acetylacetonate Properties

Melting point:
230 °C (dec.)(lit.)
Boiling point:
220 °C (11 mmHg)
Density 
0,145 g/cm3
vapor pressure 
2.7 hPa (110 °C)
refractive index 
1.57-1.64
Flash point:
>200°C
storage temp. 
Store below +30°C.
solubility 
4.8g/l
form 
Liquid
Specific Gravity
1.455
color 
Clear pale yellow
Water Solubility 
soluble
Sensitive 
Hygroscopic
Hydrolytic Sensitivity
0: forms stable aqueous solutions
Merck 
14,6500
BRN 
4157970
Stability:
hygroscopic
InChIKey
YAGMVFMEBGIOTO-FGSKAQBVSA-M
CAS DataBase Reference
3264-82-2
FDA UNII
5I48R807JO
NIST Chemistry Reference
Nickel acetylacetonate(3264-82-2)
EPA Substance Registry System
Nickel, bis(2,4-pentanedionato-.kappa.O,.kappa.O')-, (SP-4-1)- (3264-82-2)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07,GHS08
Signal word  Danger
Hazard statements  H334-H372-H302-H317-H350
Precautionary statements  P201-P280-P301+P312+P330-P308+P313-P202-P260-P264-P270-P272-P284-P302+P352+P333+P313+P363-P304+P340+P342+P311-P405-P501
Hazard Codes  T,Xi,Xn
Risk Statements  49-22-43-40
Safety Statements  53-36/37/39-45-36/37
WGK Germany  3
RTECS  SA2100000
TSCA  Yes
HS Code  29420000
Toxicity LD50 orally in Rabbit: 587 mg/kg
NFPA 704
0
2 1

Nickel(II) acetylacetonate price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 283657 Nickel(II) acetylacetonate 95% 3264-82-2 5g $37.2 2021-03-22 Buy
Sigma-Aldrich 8.06715 Nickel(II) acetylacetonate for synthesis 3264-82-2 25 g $38.85 2021-03-22 Buy
Sigma-Aldrich 8.06715 Nickel(II) acetylacetonate for synthesis 3264-82-2 100 g $108.22 2021-03-22 Buy
Sigma-Aldrich 283657 Nickel(II) acetylacetonate 95% 3264-82-2 25g $124 2021-03-22 Buy
TCI Chemical N0096 Bis(2,4-pentanedionato)nickel(II) Hydrate >98.0%(T) 3264-82-2 25g $60 2018-11-22 Buy

Nickel(II) acetylacetonate Chemical Properties,Uses,Production

Physical Properties

Emerald-green crystals; orthorhombic structure; density 1.455 g/cm3 at 17°C; melts at 230°C; soluble in water, alcohol, chloroform, benzene and toluene; insoluble in ether.

Uses

Bis(2,4-pentanediono)nickel is used as a catalyst in hydrogenation and other organic reactions.

Preparation

Nickel acetylacetonate is prepared by the reaction of acetylacetone with nickel chloride hexahydrate or nickel hydroxide, followed by crystallization:
2CH3C(=O)CH2C(=O)CH3 + Ni(OH)2 → Ni(CH3C(=O)CHC(=O)CH3)2 + 2H2O

Chemical Properties

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.

Uses

Catalyst for organic reactions.

Uses

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.

Preparation

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.

Safety Profile

Confirmed human carcinogen. Poison by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

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 Preparation Products And Raw materials

Raw materials

Preparation Products


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View Lastest Price from Nickel(II) acetylacetonate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-07-20 Bis(2,4-pentanediono)nickel
3264-82-2
US $0.00-0.00 / KG 10mg 99% 2000tons Shaanxi Dideu Medichem Co. Ltd
2019-07-06 Bis(2,4-pentanediono)nickel
3264-82-2
US $1.00 / kg 1kg 99% Customized career henan chemical co

Nickel(II) acetylacetonate Spectrum


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