Is sodium bentonite organic or inorganic?
The sodium based bentonite used for casting is inorganic! The soil is used as a binder in molding sand. Combined with sand, coal powder and water, control indexes include wet strength, permeability, compaction rate, moisture content, mud content and so on. Indicators of pure soil: wet strength, blue absorption, heat and wet tensile strength, swelling value, expansion times and other indicators.
Na based bentonite, calcium based lithium based magnesium based bentonite are inorganic compounds. Organic soil is an organic coupling coating on the molecular surface of sodium bentonite