Dh bought several bags of this stuff from Amazon.
He thought it was fine to distribute this chemical (in 1kg bags) around the house and in the eaves where he stores his camping gear.
Aibu to insist that he removes them immediately as I don't like the idea of bags of chemicals lying around the house with two small DCs? He can't see anything wrong with it and keeps telling me it's made of natural stone.
What is this stuff anyway? 