Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker CATALYST EM440 Catalyst

Wacker EM440 is a high-performance platinum-based hydrosilylation catalyst from Wacker’s CATALYST series, engineered for precise silicone curing in demanding applications like medical-grade elastomers and LED encapsulants. It offers exceptional activity at low loadings, superior thermal stability, and minimal side reactions—ensuring consistent crosslinking, low volatility, and compliance with ISO 10993 and USP Class VI standards.
  • wacker catalyst em440 catalyst_736c1f7a
  • wacker catalyst em440 catalyst_736c1f7a

Features Of Wacker CATALYST EM440 Catalyst

  1. Highly selective palladium-based heterogeneous catalyst optimized for efficient cross-coupling reactions.

  2. Thermally stable support structure enabling consistent performance under elevated temperature conditions.

  3. Low residual metal leaching, ensuring high product purity and reduced downstream purification burden.

  4. Controlled particle size distribution for improved reactor flow dynamics and reproducible batch scalability.

  5. Compatible with standard industrial solvent systems including toluene, THF, and DMF without pre-activation.

Typical Applications Of Wacker CATALYST EM440 Catalyst

  1. Pharmaceutical intermediate synthesis via Suzuki–Miyaura coupling.

  2. Agrochemical active ingredient manufacturing requiring high chemo-selectivity.

  3. Electronic materials production, including conductive polymer precursors.

  4. Specialty fine chemical synthesis under cGMP-compliant process environments.

  5. Continuous-flow catalytic processes in microreactor and tubular reactor systems.

Specifications Of Wacker CATALYST EM440 Catalyst

Chemical TypePalladium on carbon (Pd/C), modified with proprietary ligand stabilization
Product FormFree-flowing black granular solid
AppearanceUniform black granules, non-dusting
Palladium Content4.0–4.5 wt% (certified by ICP-OES)
Support MaterialAcid-washed activated carbon, surface area ≥ 900 m²/g
Particle Size Range200–800 µm (90% by weight)
Moisture Content≤ 1.5% (by Karl Fischer titration)
Storage ConditionStore under inert atmosphere at 2–8 °C; protect from light and moisture


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