A NEW METHOD FOR ESTIMATING THE SURFACE OF LIMING MATERIALS AND OTHER INSOLUBLE CALCIUM COMPOUNDS
- 1 April 1947
- journal article
- research article
- Published by Wolters Kluwer Health in Soil Science
- Vol. 63 (4) , 285-290
- https://doi.org/10.1097/00010694-194704000-00004
Abstract
A method for measuring the relative surface of insoluble Ca salts is described. The method is based on the fact that Ca oxalate is insoluble and when an insoluble Ca salt is treated with oxalic acid, a coating of insoluble Ca oxalate is formed on the surface. By washing the sample free of excess oxalic acid, decomposing the Ca oxalate with H2SO4, and titrating the liberated oxalic acid with stand -ard KMnO4, the relative surface can be measured.This publication has 0 references indexed in Scilit: