https://nanoclayguide.com/tags/layer-charge/Recent content in Layer Charge on Nanoclay GuideHugoen-usThu, 30 Jul 2026 00:00:00 +0000https://nanoclayguide.com/blog/cation-exchange-capacity-explained/Thu, 30 Jul 2026 00:00:00 +0000https://nanoclayguide.com/blog/cation-exchange-capacity-explained/<p>If you could ask only one question about a clay before buying it, ask for the cation exchange capacity.</p> <p>Not the particle size. Not the surface area. Not the brand name. CEC is the number that most reliably predicts how the material will behave, what it can be modified into, and what it will cost you to use. It is also the number that most buyers never look at, because it is expressed in units nobody encounters anywhere else and it sounds like a soil-science concept rather than a materials one.</p>