Study of extractability of inorganic sulfur compounds using a pH-stat leaching test

Authors
Janos, P Wildnerova, M
Citation
P. Janos et M. Wildnerova, Study of extractability of inorganic sulfur compounds using a pH-stat leaching test, CHEM LISTY, 95(1), 2001, pp. 38-40
Citations number
17
Categorie Soggetti
Chemistry
Journal title
CHEMICKE LISTY
ISSN journal
00092770 → ACNP
Volume
95
Issue
1
Year of publication
2001
Pages
38 - 40
Database
ISI
SICI code
0009-2770(2001)95:1<38:SOEOIS>2.0.ZU;2-I
Abstract
A pH-stat test was used to assess extractability of inorganic sulfur compou nds from fly ashes. The tests were performed in the pH range 3-11. Constant pH values were maintained by addition of dilute nitric acid or sodium hydr oxide solutions. The only inorganic sulfur-containing species identified in the extracts was sulfate. The method showed excellent precision: relative standard deviations of repeatability and reproducibility were in the ranges 4.67-8.68 % and 4.67-10.99 %, respectively.