IVL Swedish Environmental Research Institute

ivl.se
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
On the complex formation of proton and barium (11) with thorin ions
1977 (English)Report (Other academic)
Abstract [sv]

The complex equilibria between Ba2+, H+ and thorin ions (L5-) were studied at 25 ºC in 70 % isopropanol and 0.1 M sodium (perchlorate) medium by means of potentiometric titration using a glass electrode. The total concentrations of thorin and Ba2+ were less than 2 x 10-4 M and 8 x 10-5 M, respectively. The pH range was 3 - 10. The data were evaluated with the generalised least square program LETAGROP. The results indicate that three proton compelxes are formed: HL4-, H2L3- and H3L2-, with the following step acidity constants: log K1 = 11.01, log K2 = 8.27 and kog K3 = 3.77. The main barium complexes are Ba(HL)2 6- and BaL2 8- with the stability constants log K222 = 15.70 and log K02 = 27.47

Abstract [en]

The complex equilibria between Ba2+, H+ and thorin ions (L5-) were studied at 25 ºC in 70 % isopropanol and 0.1 M sodium (perchlorate) medium by means of potentiometric titration using a glass electrode. The total concentrations of thorin and Ba2+ were less than 2 x 10-4 M and 8 x 10-5 M, respectively. The pH range was 3 - 10. The data were evaluated with the generalised least square program LETAGROP. The results indicate that three proton compelxes are formed: HL4-, H2L3- and H3L2-, with the following step acidity constants: log K1 = 11.01, log K2 = 8.27 and kog K3 = 3.77. The main barium complexes are Ba(HL)2 6- and BaL2 8- with the stability constants log K222 = 15.70 and log K02 = 27.47

Place, publisher, year, edition, pages
IVL Svenska Miljöinstitutet, 1977.
Series
B report ; B379
Keywords [sv]
proton, barium, thorin
Identifiers
URN: urn:nbn:se:ivl:diva-1059OAI: oai:DiVA.org:ivl-1059DiVA, id: diva2:1550490
Available from: 2021-05-05 Created: 2021-05-05Bibliographically approved

Open Access in DiVA

fulltext(7879 kB)131 downloads
File information
File name FULLTEXT01.pdfFile size 7879 kBChecksum SHA-512
20d7c0e7473357d59652fd83f0d73f403ac5e471dafebcabb09b6990d185f2a6050cd8c3ce3812e4c9e95e6b3ab5030631fb5a9d99c3ee5b32b2d9588185c276
Type fulltextMimetype application/pdf

Search outside of DiVA

GoogleGoogle Scholar
Total: 131 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 12 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf