Bentonite API 13A Section 9
Formula: Al2O3.4(SiO2).H2O CAS: 1302-78-9 HS Code: 25081001 BENTONITE API 13A is a pure Sodium based Bentonite. It is processed from selected ore with high montmorollinite content. BENTONITE API 13A contains more than 85% smeclite, the active clay content as determined by colloid and x-ray diffraction.