How to chose the ratio of deionized water to soils (D/S) to determine the pH of montmorillonite with different NaCl concentration in the pore fluid?
A general practice for determinating the pH is 1% solid material in d.i. water.
If this doesn't provide a different reading then the plain d.i. water try 10% solid material.
The link below might be of interest to you!
https://www.researchgate.net/post/Which_are_the_best_methods_for_the_measurement_of_soil_pH
In many documents, the procedure for pH determination does not refer to the effect of double layer thickness on the ratio of solid to liquid. For soils without montmorillonite, the ratio 1:1 or 1:2 is ok, but for soil contain high montmorillonite content, these ratios are not suitable because montmorillonite has the high water holding capacity and a large thickness of double layer. So my concern is how to determine the ratio of soil to liquid when determining the pH of montmorillonite.
- Badges
- Science topic
- Similar topics
- Engineering
- Chemical Engineering