gypsum wikipedia - EAS
Xem thêm
Xem tất cả trên WikipediaGypsum - Wikipedia
https://en.wikipedia.org/wiki/GypsumGypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard/sidewalk chalk, and drywall. A massive fine-grained white or lightly
...
Xem thêmThe word gypsum is derived from the Greek word γύψος (gypsos), "plaster". Because the quarries of the Montmartre district of Paris have long furnished burnt gypsum (calcinedgypsum) used for various purposes, this dehydrated
...
Xem thêm
Gypsum is moderately water-soluble (~2.0–2.5 g/l at 25 °C) and, in contrast to most other salts, it exhibits retrograde solubility, becoming less soluble at higher temperatures. When gypsum is heated in air it loses water and converts first to calcium sulfate hemihydrate
...
Xem thêmCommercial quantities of gypsum are found in the cities of Araripina and Grajaúin Brazil; in Pakistan, Jamaica, Iran (world's second largest producer), Thailand, Spain (the main producer in
...
Xem thêmSynthetic gypsum is recovered via flue-gas desulfurizationat some coal-fired power plants. It can be used interchangeably with natural gypsum in some
...
Xem thêmPeople can be exposed to gypsum in the workplace by breathing it in, skin contact, and eye contact. Calcium sulfate per se is nontoxic and is even approved as a food additive, but as powdered gypsum, it can irritate skin and mucous membranes.
United States...
Xem thêmGypsum is a common mineral, with thick and extensive evaporite beds in association with sedimentary rocks. Deposits are known to occur in strata from as far back as the Archaean eon. Gypsum is deposited from lake and sea water, as well as in hot springs,
...
Xem thêmVăn bản Wikipedia theo giấy phép CC-BY-SAMục này có hữu ích không?Cảm ơn! Cung cấp thêm phản hồiGypsum - Simple English Wikipedia, the free encyclopedia
https://simple.wikipedia.org/wiki/GypsumGypsum (CaSO 4.2H 2 O) is a common sulfate mineral made of calcium sulfate.Gypsum has been used as a building material for a long time, possibly since the neolithic.Today, it is an ingredient of plaster of paris.It can also be used as a fertilizer.It is softer than most minerals, with a value of 2 on the Mohs scale of mineral hardness.This mineral can be, somewhat, scratched with your …
- Thời gian đọc ước tính: 40 giây
Drywall - Wikipedia
https://en.wikipedia.org/wiki/DrywallDrywall (also known as plasterboard, wallboard, sheet rock, gypsum board, buster board, custard board, or gypsum panel) is a panel made of calcium sulfate dihydrate (gypsum), with or without additives, typically extruded between thick sheets of facer and backer paper, used in the construction of interior walls and ceilings. The plaster is mixed with fiber (typically paper, glass wool, or a co…
Wikipedia · Nội dung trong CC-BY-SA giấy phépGypsum - Wikipedia
https://sco.wikipedia.org/wiki/GypsumGypsum is a very saft sulfate mineral componed o calcium sulfate dihydrate, wi the chemical formula CaSO 4 ·2H 2 O. It can be uised as a fertilizer, is the main constituent in mony furms o plaister an is widely mined. A very fine-grained white or lichtly tinted variety o gypsum, cried alabast, haes been uised for sculpture bi mony culturs includin Auncient Egyp, Mesopotamie an …
- Category: Sulfate minerals
- Formula (repeatin unit): CaSO₄·2H₂O
- Creestal seestem: Monoclinic 2/m – Prismatic
- Strunz clessification: 07.CD.40
Gypsum – Wikipedia
https://de.wikipedia.org/wiki/GypsumGypsum (lateinisch für „Gips“) ist eine Bezeichnung für (gewöhnlichen) Gips Orte in den Vereinigten Staaten: . Gypsum (Colorado) Gypsum (Kansas) Gypsum (Ohio) Gypsum Creek Township; Diese Seite wurde zuletzt am 10. September 2021 um 14:27 Uhr bearbeitet.
Gypsum - Wikipedia
https://nl.wikipedia.org/wiki/GypsumGypsum. Gypsum kan verwijzen naar de volgende plaatsen in de Verenigde Staten: Bekijk alle artikelen waarvan de titel begint met Gypsum of met Gypsum in de titel . Dit is een doorverwijspagina, bedoeld om de verschillen in betekenis of gebruik van Gypsum inzichtelijk te maken. Op deze pagina staat een uitleg van de verschillende betekenissen ...
Gypsum - Wikipedia
https://it.wikipedia.org/wiki/GypsumGypsum – città della Contea di Saline, Kansas Questa pagina è stata modificata per l'ultima volta il 16 lug 2021 alle 20:47. Il testo è disponibile secondo la licenza Creative Commons Attribuzione-Condividi allo stesso modo; possono applicarsi condizioni ulteriori. Vedi le condizioni d'uso per i …
Gypsum – Wikipédia, a enciclopédia livre
https://pt.wikipedia.org/wiki/GypsumGypsum. Esta é uma página de desambiguação que lista os artigos que podem ser associados a um ou vários títulos. Se uma ligação interna o conduziu até aqui, sugerimos que a corrija para apontá-la diretamente ao artigo adequado. Você quer?
