Chromium(III) acetylacetonate Chemical Properties

Melting point:

210 °C(lit.)

Boiling point:

340 °C(lit.)

Density 

1,35 g/cm³

vapor pressure 

0Pa at 20℃

Flash point:

>200°C

storage temp. 

Store below +30°C.

solubility 

11g/l

form 

Crystalline Powder, Crystals, and/or Chunks

Specific Gravity

1.35

color 

Purple to maroon

PH

6 (1g/l, H2O, 20℃)

Water Solubility 

11 g/L (20 ºC)

Hydrolytic Sensitivity

1: no significant reaction with aqueous systems

BRN 

4148971

Exposure limits

NIOSH: IDLH 25 mg/m3; TWA 0.5 mg/m3

LogP

0.4 at 20℃

NIST Chemistry Reference

Chromium, tris(2,4-pentanedionato-o,o')-(21679-31-2)

EPA Substance Registry System

Chromium(III) acetylacetonate (21679-31-2)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

22-26-36-37/39

WGK Germany 

2

RTECS 

GB7575000

TSCA 

Yes

HS Code 

29420000

Toxicity

LD50 orally in Rabbit: 3360 mg/kg LD50 dermal Rabbit 6350 mg/kg

MSDS

• Language:English Provider:Chromium(III) 2,4-pentanedionate
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Chromium(III) acetylacetonate Usage And Synthesis

Uses

Chromium(III) acetylacetonate is a useful research chemical.

Chemical Properties

PURPLE CRYSTALLINE POWDER

Uses

Catalyst in the oxidation of methacrylic esters by hydrogen peroxide, MOCVDChromium(III) 2,4-pentanedionate is used in the reduction of detonation of nitromethane. It is also used in NMR spectroscopy as a relaxation agent due to its solubility in nonpolar organic solvents and its paramagnetism. Further, it is involved in the modification of the surface properties of solid polyurethanes.

Uses

Chromium(III) acetylacetonate may be used as an active site in the formation of redox systems for the fabrication of flow batteries. It may also be used as a precursor for chromium nitride based metallic coatings.

General Description

Chromium(III) acetylacetonate is an acidopentamminechromium (111) salt, which is a crystalline material that can be prepared by treatment of precipitated hydrous chromium(III) oxide with acetylacetone.

Flammability and Explosibility

Not classified

Safety Profile

Moderately toxic by ingestion. Mildly toxic by s h contact. When heated to decomposition it emits acrid smoke and irritating fumes. See also CHROMIUM COMPOUNDS.

Purification Methods

Purify it by dissolving 6g in hot *C6H6 (20mL) and adding 75mL of pet ether slowly. Cool to room temperature then chill on ice, filter off and dry in air to give 2.9g. It also crystallises from EtOH. It is soluble in heptane, *C6H6, toluene and pentane-2,4-dione at 20-40o. It forms a 1:2 complex with CHCl3. [Fernelius & Blanch Inorg Synth V 130 1957, Steinbach & Burns J Am Chem Soc 80 1839 1958, Beilstein 1 H 782, 1 II 836, 1 IV 3673.]

Chromium(III) acetylacetonate(21679-31-2)Related Product Information

• 1,1,1-Trifluoro-2,4-pentanedione
• Acetylacetone
• ZIRCONIUM(IV) ACETYLACETONATE
• Manganic acetylacetonate
• CERIUM (III) ACETYLACETONATE HYDRATE
• ZINC ACETYLACETONATE HYDRATE
• Vanadyl acetylacetonate
• Bis(acetylacetonato)cobalt
• Ferric acetylacetonate
• Chromium
• Aluminum acetylacetonate
• Potassium chromate
• VANADIUM(III) ACETYLACETONATE
• Ethyl levulinate
• Methyl levulinate
• Acetylcholine
• Levulinic acid
• Bis(2,4-pentanedionato-O,O')palladium(II)