Chromium(III) Acetylacetonate (CAS 21679-31-2): Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Chromium(III) Acetylacetonate (CAS 21679-31-2) is a coordination compound with the formula Cr(C5H7O2)3. It is widely used as a catalyst, precursor for nanomaterials, and in organic synthesis.
Key Specifications:
| Parameter | Value |
|---|---|
| CAS Number | 21679-31-2 |
| Molecular Formula | C15H21CrO6 |
| Molecular Weight | 349.32 g/mol |
| Appearance | Purple crystalline powder |
| Melting Point | 216-218°C |
| Solubility | Soluble in organic solvents (e.g., chloroform, acetone) |
Comparative Analysis with Similar Metal Acetylacetonates:
| Property | Cr(acac)3 | Fe(acac)3 | Al(acac)3 |
|---|---|---|---|
| Catalytic Efficiency | High | Medium | Low |
| Thermal Stability | Up to 300°C | 250°C | 200°C |
| Typical Applications | Polymerization, Nanomaterials | Oxidation Reactions | Thin Film Deposition |
2. Applications & Uses
- Catalysis: Used in olefin polymerization and oxidation reactions.
- Nanomaterial Synthesis: Precursor for Cr-doped nanoparticles and thin films.
- Organic Synthesis: Ligand for asymmetric catalysis.
- Anticorrosion Coatings: Enhances durability in metal coatings.
3. Usage Scenarios
Scenario 1: Catalytic Polymerization
Process: Add 0.1-1.0 mol% Cr(acac)3 to monomer solution under inert atmosphere. Heat to 80°C for 4-8 hours. Outcome: High-purity polyethylene with controlled molecular weight.
Scenario 2: Nanoparticle Production
Process: Dissolve in ethanol, mix with metal salts, and pyrolyze at 500°C. Outcome: Uniform Cr2O3 nanoparticles (20-50 nm).
4. Customer Case Studies
Case 1: Advanced Polymer Solutions Ltd.
Challenge: Low catalyst efficiency in HDPE production. Solution: Switched to Cr(acac)3 (0.5 mol%). Result: 30% faster polymerization, 15% cost reduction.
Case 2: NanoTech Materials Inc.
Challenge: Inconsistent nanoparticle sizes. Solution: Used Cr(acac)3 as precursor. Result: 98% size uniformity (±5 nm) in Cr2O3 production.
5. Contact for Quotation & Technical Support
Request pricing, samples, or technical documents:
Email: info@vivalr.comTel: (86) 15866781826
Custom synthesis and bulk order discounts available.
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