http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320496ethyl silicate http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320496 inorganic material BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320496 methyltriethoxysilane NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320496 methyltrimethoxysilane NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320496 silicate, ethyl UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320496 tetraethyl orthosilicate UF