MANGANESE(II) ACETYLACETONATE Chemical Properties

Melting point:

248-250 °C (dec.)(lit.)

Boiling point:

130.3°C

Density 

1,6 g/cm³

storage temp. 

Store below +30°C.

solubility 

11.5g/l

form 

Powder

color 

tan

Specific Gravity

1.60

Water Solubility 

Soluble in water

Sensitive 

Hygroscopic

Hydrolytic Sensitivity

7: reacts slowly with moisture/water

BRN 

4157965

Exposure limits

OSHA: Ceiling 5 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3

Stability:

hygroscopic

EPA Substance Registry System

Manganese, bis(2,4-pentanedionato-.kappa.O,.kappa.O')- (14024-58-9)

Safety Information

Hazard Codes 

Xn

Risk Statements 

20/21/22-36/37/38-40

Safety Statements 

26-36

WGK Germany 

3

RTECS 

OO9350000

TSCA 

Yes

HS Code 

2914 19 90

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

MANGANESE(II) ACETYLACETONATE Usage And Synthesis

Chemical Properties

Beige solid

General Description

Manganese(II) acetylacetonate (Mn(acac)₂) is a transition metal acetylacetonate that is trimeric in hydrocarbon solvents. It is monomeric and tetrahedral in its vapor state. It shows Mn-O bond energy of 65 kcal mol^-1. It can be used with potassium permanganate in preparation of manganese triad (Mn(acac)₃).

Safety Profile

Questionable carcinogen with experimental neoplastigenic and tumorigenic data. When heated to decomposition it emits acrid smoke and irritating fumes. See also iMANGANESE COMPOUNDS.

Purification Methods

Purify it by stirring 16g of reagent for a few minutes with 100mL absolute EtOH and filter by suction as rapidly as possible through coarse filter paper. Sufficient EtOH is added to the filtrate, to make up for the loss of EtOH and to redissolve any solid that separates. Water (15mL) is added to the filtrate, and the solution is evaporated with a stream of N2 until reduced to half its volume. Cool for a few minutes and filter off the yellow crystals, dry them under a stream of N2, then in a vacuum at room temperature for 6-8hours. These conditions are important for obtaining the dihydrate. A vacuum to several mm of Hg or much lower pressure for several days produces the anhydrous complex. The degree of hydration can be established by determining the loss in weight of 100g of sample after heating for 4hours at 100o and <20mmHg. The theoretical loss in weight for 2H2O is 12.5%. The material sublimes at 200o/2mm. It is soluble in heptane, MeOH, EtOH or *C6H6 at 30o. [Charles Inorg Synth VI 164 1960, Fernelius & Biswas Inorg Synth V 105 1957, Beilstein 3 II 3122.]

MANGANESE(II) ACETYLACETONATE(14024-58-9)Related Product Information

• Manganic acetylacetonate
• Vanadyl acetylacetonate
• LANTHANUM ACETYLACETONATE HYDRATE
• GALLIUM(III) 2,4-PENTANEDIONATE
• HAFNIUM(IV) 2,4-PENTANEDIONATE
• COBALT(II) ACETYLACETONATE
• Ferrous acetylacetonate
• INDIUM ACETYLACETONATE
• LITHIUM ACETYLACETONATE
• VANADIUM(III) ACETYLACETONATE
• YTTRIUM ACETYLACETONATE
• Titanium(IV)oxide acetylacetonate
• Nickel(II) acetylacetonate
• ZINC ACETYLACETONATE HYDRATE
• Ethyl 2,4-dioxovalerate
• Chromium(III) acetylacetonate
• Cupric acetylacetonate
• NEODYMIUM ACETYLACETONATE