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China wholesale Monoethyl Fumarate - (2-Bromoethyl)benzene 2-Phenylethyl bromide 103-63-9 – Starsky

Description

Product Name: Tetrakis(triphenylphosphine)palladium CAS: 14221-01-3 MF: C72H60P4Pd MW: 1155.561844 EINECS: 238-086-9 Melting point: 103-107 °C storage temp.: 2-8°C form: Fine Powder or Platelets color: Bright yellow to khaki Water Solubility: insoluble

Specification

Product Name Tetrakis(triphenylphosphine)palladium
CAS 14221-01-3
Apperance Yellow Powder
Melting point 103-107 °C
Assay/Pd ≥9.2%
Purity ≥99%

Properties of precious metal catalysts

  1.High activity   Precious metal catalysts consist of highly dispersed nano-scale precious metal particles on supports with high surface area such as carbon, silica, and alumina.   2. Selectivity   The nano scale metal particles easily adsorb hydrogen and oxygen in the atmosphere. The hydrogen or oxygen is very active due to its dissociative adsorption through d-electron of out of shell of precious metal atoms.   3.Stability   Precious metals are stable. They do not easily form oxides by oxidation. The oxides of precious metals are, on the other hand, relatively not stable. Precious metals do not easily dissolve in acid or alkaline solution. Because of high thermal stability, precious metal catalyst has been used as automotive exhaust gas purification catalysts.

Storage

Stored in a ventilated and dry warehouse.