00505naa#a2200169#i#450# EN\\bibl\102954 20250813174318.3 3034-4689 20250807b2025####ek#y0engy0150####ca RU COLLOIDAL AND CHEMICAL PROPERTIES OF BENTONITES FROM THE ORENBURG REGION Journal article Kazan Kazan National Research Technological University 2025 3 с. Journal article local Shakirov T. R. vestniktu.ru