Nozaki, Toru published the artcileComplex formation of (1-hydroxyethylidene)bisphosphonic acid and flotation with the complexes, Application of Dodecylamineacetate, the publication is Nippon Kagaku Kaishi (1989), 697-701, database is CAplus.
From the polarog. behavior of Cu(II), Pb(II), Cd(II), and Mn(II) ions in (1-hydroxyethylidene)bisphosphonic acid (HEBP, H5L) solutions at an ionic strength of 0.4 mol/dm3 adjusted with sodium perchlorate, the compositions of the metal complexes and their stability constants were determined The species of MH3L, MH2L–, MHL2-, M(H3L)22-, M(H3L)H2L3-, M(H2L)24-, and M(H2L)HL5- for Cu and Mn, and same species except MH2L– and MHL2- for Cd, were found at pH 4.6-6.4. Species of MHL2-, ML3-, M(OH)L4-, M(HL)26-, and ML28- were found in the pH ranges 11.5-12.9 for Pb(II). The flotation of HEBP by complexing with Fe(III) and the HEBP complexes was investigated. Recoveries of 4.0 ¡Á 10-4 mol/dm3 of HEBP and the HEBP complexes of Cu(II), Pb(II) and Mn(II) were 99.6%, and 99.6, 98.6 and 91.5%, resp., by the flotation for about 5 min using (1.2 ? 1.6) ¡Á 10-3 mol/dm3 of dodecylammonium acetate (DAA) as a surfactant at pH 6.0-9.5. The presence of 6382 ppm of Cl–, 3840 ppm of SO42- and 3100 ppm of NO3– did not interfere the flotation. Flotation of HEBP and the complexes proceeds through the formation of ion pair Rn?MHi?L, where n? = 5-n-i?, R and n denoting the cation of DAA and the charge of the metal, resp.
Nippon Kagaku Kaishi published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C14H31NO2, Application of Dodecylamineacetate.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia