Collodion

(noun.) a colorless syrupy solution of pyroxylin in ether and alcohol; used as a coating for wounds or photographic films.

埃德蒙手打

• A clean plate of glass is coated with collodion sensitized with iodides of potassium, etc. Edward W. Byrn. 十九世纪发明进展.
• M. Le Gray, of Paris, was the first to suggest collodion for this purpose, but Mr. Scott Archer, of London, in 1851, was the first to carry it out practically. Edward W. Byrn. 十九世纪发明进展.
• Scott Archer’s Collodion Process in Photography. Edward W. Byrn. 十九世纪发明进展.
• Collodion emulsion with bromide of silver was invented by Sayce and made known in 1864. Edward W. Byrn. 十九世纪发明进展.
• In 1856 Norris produced sensitized dry films of collodion or gelatine (British patent No. 2,029, of 1856). Edward W. Byrn. 十九世纪发明进展.
• Besides its use as an explosive, gun cotton when dissolved in ether has found an important application as collodion in the art of photography. Edward W. Byrn. 十九世纪发明进展.
• Albumen has, however, been supplanted by collodion--a solution of gun-cotton in ether--which is found to be peculiarly suitable for the reception of the sensitive preparation of silver. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• In conducting the collodion process, the collodion is first iodised by adding to it iodide of potassium and iodide of silver, dissolved in alcohol. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• The pictures produced by the collodion process are negatives, which serve admirably for transferring positive pictures on to sensitive paper. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• In his method of doing so, he covers the steel plate with a solution of isinglass and bichromate of potass, and placing a collodion negative picture upon it, he exposes it to the action of light. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.

校对:杜鲁门