January 29, 2024 E STTP or sodium tripolyphosphate or sodium bentonite or montmorillonite or volcanic ash yes volcanic ash is generally regarded as Protected via the FDA ,you read me correct,this stuff should be banned By clicking “Accept All Cookies�? you conform to the storing of cookies on your product https://www.tjcyindustrialchem.com/news/what-is-sodium-tripolyphosphate-stpp-used-for.html