Sodium silicate clearing agent, though, sodium silicate is sometimes confused with isinglass which is prepared from collagen extracted from the dried swim bladders of sturgeon and other fishes. Eggs preserved in a bucket of waterglass gel, and their shells are sometimes also used (baked and crushed) to clear wine. Sodium silicate gel is also used as a substrate for algal growth in aquaculture hatcheries. Sodium silicate Sodium silicate is a generic name for chemical compounds with the formula or ·, such as sodium metasilicate , sodium orthosilicate , and sodium pyrosilicate . The anions are often polymeric. These compounds are generally colorless
Dried and salted cod Dried and salted cod Dried and salted cod has been produced for over 500 years in Newfoundland, Iceland, and the Faroe Islands, and most particularly in Norway where it is called klippfisk, literally "cliff-fish". Traditionally it was dried outdoors by the wind and sun, often on cliffs and other bare rock-faces. Today "klippfisk" is usually dried indoors with the aid of electric heaters. The production of salt cod dates back at least 500 years, to the time of the European discoveries of the Grand Banks off Newfoundland. When explorer Jacques Cartier discovered the mouth of the St. Lawrence River in