21679-31-2 Usage
Description
Chromium(III) acetylacetonate, also known as chromium(III) 2,4-pentanedionate, is an acidopentamminechromium(III) salt. It is a crystalline, purple, powdery material that can be prepared by treating precipitated hydrous chromium(III) oxide with acetylacetone. Chromium(III) acetylacetonate is known for its solubility in nonpolar organic solvents and its paramagnetic properties.
Uses
Used in Research Chemicals:
Chromium(III) acetylacetonate is utilized as a valuable research chemical, contributing to the advancement of scientific knowledge and understanding of chemical reactions and processes.
Used in Catalysts for Oxidation Processes:
In the chemical industry, chromium(III) acetylacetonate serves as a catalyst in the oxidation of methacrylic esters by hydrogen peroxide. This application is crucial for the production of various chemical compounds and materials.
Used in Chemical Vapor Deposition (CVD):
Chromium(III) acetylacetonate is employed in the process of Metal-Organic Chemical Vapor Deposition (MOCVD), which is a technique used to deposit thin films for various applications, including microelectronics and optoelectronics.
Used in Reduction of Detonation of Nitromethane:
In the field of explosives, chromium(III) acetylacetonate is used to reduce the detonation velocity of nitromethane, making it a safer and more controlled explosive material.
Used in Nuclear Magnetic Resonance (NMR) Spectroscopy:
Due to its solubility in nonpolar organic solvents and its paramagnetic nature, chromium(III) acetylacetonate is used as a relaxation agent in NMR spectroscopy. This enhances the efficiency and accuracy of the spectroscopic analysis.
Used in Surface Modification of Solid Polyurethanes:
Chromium(III) acetylacetonate is involved in the modification of surface properties of solid polyurethanes, improving their performance and versatility in various applications.
Used in Redox Systems for Flow Batteries:
Chromium(III) acetylacetonate may be used as an active site in the formation of redox systems for the fabrication of flow batteries, contributing to advancements in energy storage technology.
Used in Precursors for Chromium Nitride Based Metallic Coatings:
Chromium(III) acetylacetonate may also be used as a precursor for chromium nitride-based metallic coatings, which have potential applications in various industries due to their unique properties, such as hardness and corrosion resistance.
Flammability and Explosibility
Notclassified
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.]
Check Digit Verification of cas no
The CAS Registry Mumber 21679-31-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,7 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21679-31:
(7*2)+(6*1)+(5*6)+(4*7)+(3*9)+(2*3)+(1*1)=112
112 % 10 = 2
So 21679-31-2 is a valid CAS Registry Number.
InChI:InChI=1/3C5H7O2.Cr/c3*1-4(6)3-5(2)7;/h3*3H,1-2H3;/q3*-1;+3
