AlNa(SO4)2· 12H2O Colorless crystals with an astringent taste and a melting point of 61°C; soluble in water; used as a mordant and for waterproofing textiles, as a food additive, and for matches,...
In solid state at normal temperature the don't react with each other because both have the stable crystal structures but in aqueous solutions when they are allow to mixed white precipitate of silver...
Well, if you drop a large bag of it on your head, yes. It's not particularly poisonous and is in fact used as a food additive, though in fairly small quantities (it has a rather unpleasant taste in...