Detail of "4408-81-5"

Reference

Synthesis and characterization of new palladium complexes with PDTA

Synthesis and characterization of new palladium complexes with PDTA. Gonzalez Vilchez, F.; Lopez Alcala, J. M.; Garcia Basallote, M. (Fac. Cienc., Univ. Cadiz, Cadiz, Spain). An. Quim., Ser. B, 79(1), 51-5 (Spanish) 1983. CODEN: AQSAD3. 4408-81-5 and 107-15-3 which are cas registry numbers are also used here. ISSN: 0211-1349. DOCUMENT TYPE: Journal CA Section: 78 (Inorganic Chemicals and Reactions) Addn. of solid PDTA (H4L) to aq. PdCl2 gave [Pd(H3L)Cl].2H2O. The potentiometric titrn. and the IR spectra showed that PDTA acts as a tridentate ligand. The reactions of the above complex with KBr, KSCN, and ethylenediamine in aq. media gave [Pd(H3L)Br].2H2O, [Pd2(H2L)(SCN)2].2H2O, and [Pd2(H3L)2en]Cl2.5H2O, resp. .

The precipitation of barium bromate from a homogeneous water-organic solvent solution containing strontium

The precipitation of barium bromate from a homogeneous water-organic solvent solution containing strontium. Firsching, F. H.; Berger, Michael T. (Sch. Sci. Technol., South. Illinois Univ., Edwardsville, Ill., USA). Sep. Sci., 12(1), 65-70 (English) 1977. CODEN: SESCAI. DOCUMENT TYPE: Journal CA Section: 68 (Phase Equilibriums, Chemical Equilibriums, and Solutions) Section cross-reference(s): 79 A new and general method of inducing a pptn. from homogeneous soln. has been applied to the sepn. of barium and strontium. The pptn. of barium bromate, a water-sol. compd., is brought about by a gradual change in the compn. of the solvent media. An org. compd., such as methanol or THF, is allowed to diffuse into the original water soln., thus slowly converting the soln. into a water-org. mixt. Strontium bromate is .apprx.40 times more sol. in water than barium bromate. The increased soly. plus the greater stability of the strontium MEDTA (1,2-diaminopropanetetraacetic acid) chelate tends to hold the strontium in soln. The chief advantage of this method over the pptn. of barium chromate is in the prepn. of barium compds.In this experiment, several chemicals are used like 4408-81-5 and 67-56-1 Usually barium must be sepd. from the chromate before proceeding. However, barium bromate can be easily converted to the oxide, eliminating this sepn. step. .