A Raman spectroscopic study of lead and zinc acetate complexes in hydrothermal solutions

Conference · Wed Feb 01 04:00:00 EST 1989 · Geochimica et Cosmochimica Acta; (USA)

OSTI ID:5158392

Yang, M M; Crerar, D A ^[1]; Irish, D E ^[2]

---

1. Princeton Univ., NJ (USA)
2. Univ. of Waterloo, Ontario (Canada)

Principal Component Analysis (PCA) and bandfitting techniques were applied to Raman spectra of lead acetate and zinc acetate solutions measured at 25{degree}C. These results reveal the presence of strong, covalent Zn(Ac){sup +}, Zn(AC){sub 2}, Zn(Ac){sup {minus}}{sub 3} and Pb(Ac){sup +}, Pb(Ac){sub 2} and possibly Pb(Ac){sup {minus}}{sub 3} complexes in solution where (Ac) refers to the acetate ion, CH{sub 3}COO{sup {minus}}. Ligation numbers of the different complexes were obtained up to 250{degree}C and species of low-to-neutral charge were found to predominant at the higher temperatures. The spectroscopic evidence shows that the type of complex formed is a function of pH, ligand-to-metal ratio and temperature.

• OSTI ID: 5158392
• Report Number(s): CONF-8802153--
• Conference Information: Journal Name: Geochimica et Cosmochimica Acta; (USA) Journal Volume: 53:2
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
152003* -- Geothermal Data & Theory-- Rock-Water-Gas Interactions
58 GEOSCIENCES
580000 -- Geosciences
ACETATES
BINDING ENERGY
CARBOXYLIC ACID SALTS
CHEMICAL COMPOSITION
CHEMISTRY
COMPLEXES
COVALENCE
ENERGY
ENERGY SYSTEMS
FLUIDS
GEOCHEMISTRY
GEOTHERMAL FLUIDS
GEOTHERMAL SYSTEMS
HYDROTHERMAL SYSTEMS
LASER SPECTROSCOPY
LEAD COMPOUNDS
LIGANDS
PH VALUE
RAMAN SPECTROSCOPY
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
ZINC COMPOUNDS