The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Tri-n-octylphosphine Oxide, is researched, Molecular C24H51OP, CAS is 78-50-2, about Selective separation and recovery of Cr(VI) in the presence of other metal ions, especially Fe(III), by green emulsion liquid membrane, the main research direction is chromium iron green emulsion liquid membrane wastewater treatment.Formula: C24H51OP.
Nowadays, the green emulsion liquid membrane (GELM) is considered to be an attractive and effective alternative technique for the separation and removal of toxic heavy metals from aqueous wastewater. In the present study, the GELM method is used to sep. and remove chromium in the presence of other metal ions especially Fe(III), in a way that contributes to green chem. The formulation of the GELMs consists of sunflower oil as vegetable solvent, PGPR, and Tween 80 as surfactants, tri-n-octylphosphine oxide (TOPO) as an extractant, and sodium carbonate Na2CO3 (0.5 M) as the internal water phase. The influence of several operational parameters are studied, namely: the pH of the external phase, the initial concentration of ions, and the stirring time during the extraction of each metal alone (chromium and iron). The selective extraction of Cr(VI) in presence of other six metals (iron, cobalt, copper, nickel, zinc, and cadmium) is also investigated. The separation of Cr(VI) from the mixture of metal was possible by stirring 5 mL of the green emulsion with 25 mL of the external phase (pH = 1) at a speed of 400 rpm for 20 min. The optimal GELMs formulations with 4% (volume/volume) tri-n-octylphosphine oxide (TOPO), 4% (volume/volume) PGPR, and 1% (volume/volume) of Tween 80 in sunflower oil showed very good selectivity for chromium at pH = 1 with an extraction efficiency of 98.8%.
There is still a lot of research devoted to this compound(SMILES：CCCCCCCCP(CCCCCCCC)(CCCCCCCC)=O)Formula: C24H51OP, and with the development of science, more effects of this compound(78-50-2) can be discovered.
Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method