provide ventilation. 6.4. reference to other sections for further information refer to section 8 exposure controls/personal protection. section 7. handling and storage 7.1. precautions for safe handling . bentonite powder is not subject to regulation (eu) no 649/2012 of the european parliament and of the council of 4 july 2012 con-,bentonite powder new dhaka rubber,bentonite (/bntnt/) is an absorbent aluminium phyllosilicate clay consisting mostly of montmorillonite.it was named by wilbur c. knight in 1898 after the cretaceous benton shale near rock river, wyoming. the different types of bentonite are each named after the respective dominant element, such as potassium (k), sodium (na), calcium (ca), and aluminium (al).