. "Soluble salts are dissolved minerals whose crystallization on the surface and in the substrate of materials causes efflorescence and deterioration.The presence of water-soluble salts is a key factor in the degradation of masonry and other highly porous stone building materials. Surface efflorescence is a serious threat to ancient mural paintings. Conservation seeks to identify soluble salts in objects affected, and extract them or otherwise halt the degradation they inflict."@en . "soluble salts"@en . "water-soluble salt"@en . "water-soluble salts"@en . "300379536" . . "salts, soluble"@en . . "2012-10-03T17:03:50"^^ . "2014-02-28T16:42:09"^^ . "soluble salt"@en .