lead sulfide การใช้

• It occurs as an oxidation product of primary lead sulfide ore, galena.
• An example is a change from galena ( lead sulfide ) to anglesite ( lead sulfate ).
• The Sargent Group used lead sulfide as an infrared-sensitive electron donor to produce then record-efficiency IR solar cells.
• Other experimenters tried a variety of other substances, of which the most widely used was the mineral galena ( lead sulfide ).
• The identity of this substance is not known with certainty, but speculation has ranged from elemental tellurium to lead sulfide ( galena ).
• During initial processing, ores typically undergo crushing, dense-medium separation, roasted in the air, in order to oxidize the lead sulfide:
• As the original concentrate was not pure lead sulfide, roasting yields lead oxide and a mixture of sulfates and silicates of lead and other metals contained in the ore.
• Iron sulfide ( pyrite ) and lead sulfide ( galena ) are present sporadically in the Vinini and, where oxidized, form colorful gossans ( Ketner, 2013 ).
• The ship was named " Galena " ( PC-1136 ) on 15 February 1956, after cities in native lead sulfide, the chief ore of lead.
• As an example, sodium ethyl xanthate may be added as a collector in the selective flotation of galena ( lead sulfide ) to separate it from sphalerite ( zinc sulfide ).
• Single junction implementations using lead sulfide ( PbS ) CQDs have bandgaps that can be tuned into the far infrared, frequencies that are typically difficult to achieve with traditional solar cells.
• A gasoline is described as " doctor sweet " if, after shaking with sodium plumbite solutions, the addition of powdered sulfur fails to produce a dark precipitate of lead sulfide.
• If PSF 3 is allowed to react with water in a lead glass container, the hydrofluoric acid and hydrogen sulfide combination produces a black deposit of lead sulfide on the inner surface of the glass.
• The most commonly mined lead ore is galena ( lead sulfide ) . 4 million metric tons of lead are newly mined each year, mostly in China, Australia, the United States, and Peru.
• A "'rectifier "'is an electrical device that cat's whisker " of fine wire pressing on a crystal of galena ( lead sulfide ) to serve as a point-contact rectifier or " crystal detector ".
• Galena ( lead sulfide ) was probably the most common crystal used in cat's whisker detectors, Crystal radios have also been improvised from a variety of common objects, such as blue steel semiconducting layer of oxide or sulfide on the metal surface is usually responsible for the rectifying action.
• The ability of certain substances to give off electrons when struck by infrared light had been discovered by the famous Bengali polymath Jagadish Chandra Bose in 1901, who saw the effect in galena, known today as lead sulfide, PbS . There was little application at the time, and he allowed his 1904 patent to lapse.
• Paintings and the role of varnish, which might protect the white lead yet itself darken, aside according to Michelle Facini, a paper conservator at the National Gallery of Art, lead carbonate to lead sulfide is indeed what happens to some lead chalks / paints in drawings and watercolors and other works done on paper and unvarnished.
• Common naturally occurring sulfur compounds include the sulfide minerals, such as pyrite ( iron sulfide ), cinnabar ( mercury sulfide ), galena ( lead sulfide ), sphalerite ( zinc sulfide ) and stibnite ( antimony sulfide ); and the sulfates, such as gypsum ( calcium sulfate ), alunite ( potassium aluminium sulfate ), and barite ( barium sulfate ).