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gypsum |
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gypsum /gyp·sum/ (jip´sum) native calcium sulfate dihydrate; when calcined, it becomes plaster of Paris. gypsum [jip′səm] a mineral composed mainly of crushed calcium sulfate hemihydrate. It is the main ingredient in making plaster of paris surgical casts and impressions for dentures. Gypsum dust has an irritant action on the mucous membranes of the respiratory tract and the conjunctiva. gypsum (jip´sum), n the dihydrate of calcium sulfate (CaSO4-2H2O). α- Hemihydrate and β-hemihydrate are derived from gypsum. See also plaster of paris. gypsum native calcium sulfate, which, when calcined, becomes plaster of Paris; used in making plaster casts for fractures. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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