Synergistic Efficiency of 2-[(1-Aza-15-crown-5)-1-ylmethyl]-4-(phenyldiazenyl)-naphthalen-1-ol in the Liquid Extraction of Light Lanthanoid(III) Ions with 4-Benzoyl-3-phenyl-5-isoxazolone: The Role of Aza-Crown and Azo-Dye Fragments on the Extraction Ability was written by Petrova, Maria A.;Kurteva, Vanya B.. And the article was included in Journal of Chemical & Engineering Data in 2014.Computed Properties of C10H21NO4 This article mentions the following:
The solvent extraction of light lanthanoids with a mixture of 4-benzoyl-3-phenyl-5-isoxazolone (HPBI) and an azo-dye containing aza-crown in the side chain as a synergist (S), 2-[(1-aza-15-crown-5)-1-ylmethyl]-4-(phenyldiazenyl)-naphthalen-1-ol (PDN1A15C5), was studied. To examine the role of the azo-dye on the extraction ability, its simplified analog 1-benzyl-1-aza-15-crown-5 (BA15C5) was applied. The influence of the nitrogen on the crown fragment was estimated by a comparison with the efficiency of a series of crown ethers, benzo-15-crown-5 (B15C5) and 15-crown-5 (15C5). The lanthanoid ions were extracted from perchlorate medium at constant ionic strength 娓?= 0.1 using CHCl3 as an organic phase. The composition of the extracted species was established as Ln(PBI)3璺?S with PDN1A15C5 and BA15C5 and as Ln(PBI)3璺疭 in the presence of a crown ether. The values of the equilibrium constants were calculated The influence of the synergistic agent on the extraction mechanism and enhancement is discussed. The parameters of the extraction processes were determined, and the separation factors between two adjacent lanthanoids were calculated In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Computed Properties of C10H21NO4).
1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly autoxidize to form hydroperoxides and dialkyl peroxides. If concentrated or heated, these peroxides may explode. To prevent such explosions, ethers should be obtained in small quantities, kept in tightly sealed containers, and used promptly.Computed Properties of C10H21NO4
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem