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Bis(2,4-pentanedionato)calcium, universally recognized in chemical processing as Calcium Acetylacetonate (CAS NO. 19372-44-2), represents a vital organometallic chelate complex driving the global shift toward non-toxic polymer stabilization and green catalytic synthesis. Structurally denoted by the chemical formula Ca(C₅H₇O₂)₂ or Ca(acac)₂, this white crystalline powder integrates a central divalent calcium cation coordinated to two bidentate acetylacetonate ligands.
As regulatory frameworks such as EU REACH, RoHS 3.0, and US EPA TSCA systematically phase out hazardous heavy-metal thermal stabilizers (lead, cadmium, organotins), Bis(2,4-pentanedionato)calcium has emerged as the industry-standard structural component in Calcium-Zinc (Ca/Zn) composite heat stabilizer systems. Its unique structural configuration enables exceptional labile chlorine displacement in polyvinyl chloride (PVC) matrixes, effectively arresting the autocatalytic dehydrochlorination reaction that degrades unplasticized and plasticized vinyl polymers during high-temperature extrusion and molding.
Unlike traditional metal carboxylates (such as Calcium Stearate), Bis(2,4-pentanedionato)calcium manufactured by JIMPOCHEM exhibits superior keto-enol tautomerism. The acetylacetonate ring dynamically exchanges ligands with allylic chlorine atoms on the PVC polymer backbone, preventing the formation of conjugated polyene sequences that cause discoloration (yellowing and charring). Furthermore, our proprietary continuous crystallization technology ensures a fine particle size distribution (D90 < 10 μm), minimizing processing torque and optimizing visual clarity in transparent polymer films.
| Property Parameter | Standard Specification | High-Purity Catalyst Grade | Analytical Test Method |
|---|---|---|---|
| Chemical Name | Bis(2,4-pentanedionato)calcium / Calcium Acetylacetonate | ||
| CAS Number | 19372-44-2 | EINECS: 243-001-3 | |
| Molecular Formula / Weight | C₁₀H₁₄CaO₄ / 238.29 g/mol | Theoretical Calculation | |
| Appearance | White to light-yellow crystalline powder | Pure White Powder | Visual Inspection |
| Purity / Assay (Dry Basis) | ≥ 98.5% | ≥ 99.5% | Complexometric Titration / HPLC |
| Calcium Content (Ca) | 16.5% - 17.2% | 16.8% - 17.0% | Atomic Absorption Spectrometry (AAS) |
| Loss on Drying (Moisture) | ≤ 1.5% | ≤ 0.5% | Karl Fischer / 105°C Drying |
| Decomposition Temperature | > 270°C | > 285°C | Differential Scanning Calorimetry (DSC) |
| Free Acetylacetone | ≤ 0.2% | ≤ 0.05% | Gas Chromatography (GC) |
| Heavy Metals (Pb, Cd, Hg) | ≤ 10 ppm total | ≤ 2 ppm total | ICP-MS Analysis |
Understanding shifting B2B buyer requirements across North America, Europe, Asia-Pacific, and emerging markets.
Global industrial directives are accelerating the complete elimination of lead salt stabilizers (such as tribasic lead sulfate) and toxic organotins. B2B procurement managers are actively seeking stable, long-term supply agreements for high-grade Bis(2,4-pentanedionato)calcium to formulate zero-lead PVC compounds for drinking water pipes and food-contact packaging.
Modern thermal stabilization demands complex synergy. Procurement intent focuses heavily on Bis(2,4-pentanedionato)calcium combined with Zinc Acetylacetonate or Dibenzoylmethane (DBM). The co-stabilization effect dramatically suppresses early-stage discoloration while providing long-term thermal integrity up to 200°C processing windows.
Chemical purchasing directors prioritize reliable factory-direct partners capable of mitigating freight volatility, maintaining raw material security (acetylacetone and pure calcium oxide access), and offering ultra-low moisture grades that eliminate bubble defects during high-speed extrusion lines.
At JIMPOCHEM CO., LTD, located in the prestigious Chemical Industry Park of Jinan City, Shandong Province, our chemical manufacturing infrastructure spans over 500 acres. We integrate state-of-the-art continuous flow synthesis reactors with automated digital process control systems to redefine precision manufacturing of fine chemicals and polymer additives.
Our smart factory operates under full Industry 4.0 architecture. Real-time sensor networks continuously monitor temperature, pH equilibrium, stoichiometry, and crystallization phases during the synthesis of Bis(2,4-pentanedionato)calcium. This automated rigour yields unparalleled batch-to-batch consistency, eliminating the quality variance commonly encountered with traditional batch processing factories.
In accordance with global carbon-neutrality initiatives, JIMPOCHEM employs closed-loop solvent recovery units and multi-stage waste-gas scrubbing technology. Our zero-liquid-discharge (ZLD) wastewater management systems ensure that our output of Calcium Acetylacetonate complies with strict environmental standards, shielding downstream buyers from supply chain disruptions caused by environmental regulatory shutdowns.
Discover how Bis(2,4-pentanedionato)calcium enhances polymer stability and reaction kinetic efficiency.
In rigid PVC processing, high shear and thermal stress trigger rapid dehydrochlorination, leading to structural embrittlement. Incorporating 0.3% to 0.8% of JIMPOCHEM’s Bis(2,4-pentanedionato)calcium into Ca/Zn stabilizer recipes neutralizes liberated HCl gas while replacing unstable tertiary chlorines on the polymer chain. The result is a smooth pipe surface, high impact resistance, and full compliance with NSF/ANSI standard 61 for potable water safety.
Automotive interiors demand strict control over volatile organic compound (VOC) emissions, fogging, and odor. Traditional thermal stabilizers often release volatile secondary degradation products. Our ultra-pure Calcium Acetylacetonate features minimal residual acetylacetone monomer (<0.05%), ensuring that slush-molded dashboards, door skins, and leatherette upholstery pass rigorous VDA 278 thermal desorption testing.
Flexible PVC cables specified for 90°C to 105°C continuous service ratings require heat stabilizers that preserve electrical volume resistivity. Bis(2,4-pentanedionato)calcium prevents ionic contamination within the polymer matrix. Its fine crystalline morphology guarantees dispersion without creating micro-voids, preserving dielectric strength and flame-retardant performance under prolonged thermal stress.
Beyond polymer stabilization, Calcium Acetylacetonate serves as a mild, selective catalyst in polyurethane (PU) formulation synthesis, epoxy resin curing, and transesterification reactions. It promotes uniform gelation speeds in acrylic coatings and binder formulations without promoting premature gelling or oxidative discoloration, offering a safer alternative to organotin catalysts like DBTDL.
Established in 2010 and headquartered in the Chemical Industry Park of Jinan City, Shandong Province, JIMPOCHEM CO., LTD is a premier chemical raw material manufacturer integrating advanced R&D, full-scale continuous production, international trade, and application technical support. Covering more than 500 acres, our state-of-the-art facility specializes in high-end fine chemicals, polymer additives, and cosmetic raw materials.
Our core management and scientific team brings together chemical engineers and technical experts with over 16 years of hands-on experience in fine chemical synthesis and polymer additive development. Driven by our corporate philosophy—"Quality Leads the Future"—we have earned global recognition as a trusted "Designated Chemical Service Provider" for over 5,000 international enterprises spanning 200+ countries across North America, Europe, Southeast Asia, the Middle East, and Oceania.
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