Skip to main content

Reduction of Fe(III) in a high-iron saponite. Pillaring of the reduced samples with Al13 oligomers

Buy Article:

$12.15 plus tax (Refund Policy)

A high-iron content saponite, of the variety griffithite, was reduced using sodium dithionite and hydrazonium sulphate solutions. An important amount of Fe3+ was reduced during the treatments. When using sodium dithionite as reducing agent, the reduction was accompanied by the substitution of Ca2+ by Na+ as the exchangeable cation. When using hydrazonium sulphate, the reduction was accompanied by acid activation of the clay, the protons being released in the oxidation reaction of the hydrazonium cation. The charge balance in the clay layers is affected by the reduction processes. These structural changes do not significantly affect the pillaring ability of the clay, which is similar in the reduced solids and in the natural griffithite.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Affiliations: 1: Area de Mineralogia, y Cristalografia, DeDepartmento de Geologia, Universidad de Salamanca, Plaza de la Mercced S/N, 37008=Salamanca, Spain 2: Area de Mineralogia, y Cristalografia, Departmento de Geologia, Universidad de Salamanca, Plaza de la Mercced S/N, 37008=Salamanca, Spain

Publication date: 1998-06-01

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
UA-1313315-23
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more