202231

Chromium(III) acetylacetonate

97%

• Synonyma: Chromium(III) 2,4-pentanedionate, Cr(acac)₃
• Lineární vzorec: Cr(C₅H₇O₂)₃
• Číslo CAS: 21679-31-2
• Molekulová hmotnost: 349.32
• UNSPSC Code: 12352103
• NACRES: NA.23
• PubChem Substance ID: 24852050
• EC Number: 244-526-0
• Beilstein/REAXYS Number: 4148971
• MDL number: MFCD00000015

Vlastnosti

• Quality Segment: 200
• assay: 97%
• form: solid
• reaction suitability: core: chromium
• bp: 340 °C (lit.)
• mp: 210 °C (lit.)
• SMILES string: CC(=O)\C=C(\C)O[Cr](O\C(C)=C/C(C)=O)O\C(C)=C/C(C)=O
• InChI: 1S/3C5H8O2.Cr/c3*1-4(6)3-5(2)7;/h3*3,6H,1-2H3;/q;;;+3/p-3/b3*4-3-;
• InChI key: JWORPXLMBPOPPU-LNTINUHCSA-K

Popis

General description

Chromium(III) acetylacetonate (Cr(acac)₃) is a high-purity (≥97%) coordination complex that appears as a purple to very dark purple powder or in chunk form. It is a stable, air-insensitive compound, soluble in non-polar organic solvents. Its high thermal stability and well-defined molecular structure make it an excellent precursor for synthesizing advanced materials. Cr(acac)₃ is especially valued for applications in catalysis, thin film deposition, and as a molecular probe in spectroscopic studies.

Application

Chromium(III) acetylacetonate can be used as:

• A precursor for the synthesis of chromium oxide (Cr₂O₃) nanoparticles, which are utilized in magnetic, catalytic, and electrochemical devices
• A molecular precursor in chemical vapor deposition (CVD) and sol-gel processes to fabricate chromium-containing thin films for electrochromic and energy storage applications
• A catalyst or catalyst precursor in selective oxidation and polymerization reactions, enabling efficient and sustainable organic transformations

Analysis Note

Used to modify the surface properties of solid polyurethanes formed in its presence.

Bezpečnostní informace

• Piktogramy: GHS07
• Výstražné slovo: Warning
• Kódy nebezpečí: H315,H319
• Bezpečnostní pokyny: P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2
• Skladovací třída: 11 - Combustible Solids
• Co se děje?: WGK 2
• Bod vzplanutí (°F): >392.0 °F
• Bod vzplanutí (°C): > 200 °C
• PPE (osobní ochranné prostředky): dust mask type N95 (US), Eyeshields, Gloves