calcium sulfate

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Noun1.calcium sulfate - a white salt (CaSO4)
gypsum - a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
plaster of Paris, plaster - any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs
salt - a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
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References in periodicals archive ?
The mechanical properties of PVC can be significantly improved by using appropriate inorganic fillers or reinforcing agents such as calcium carbonate, silica, carbon nanotube, and calcium sulfate whiskers (CSW) [5-7].
In the first experiment, a completely randomized design was used with five treatments according to the use of soil conditioners (without correction, calcium sulfate, elemental sulfur, organic matter and non-saline soil) with 12 replicates, totaling 60 pots with 6.0 d[m.sup.3] of soil each.
Ceramics such as calcium sulfate hemihydrate (plaster of Paris), silicate-based glasses, and calcium sulfate dihydrate (gypsum), and calcium phosphates are used for producing implant devices and bone graft.
This study aimed to evaluate the therapeutic effects of calcium sulfate (CS) combined with platelet-rich plasma (PRP) on long bone defect restoration.
The primary product of concrete decomposition by sulfuric acid is calcium sulfate (CaS[O.sup.4]), more commonly known by its mineral name, gypsum.
Poona, for 10 minutes in water, 100 ppm of chlorine, acidified calcium sulfate (1.2% Safe2OACS 50), 1000 ppm of acidified sodium chlorite (Sanova[TM]), 80 ppm of peroxyacetic acid (Tsunami[R]) and a combination of ACS and Tsunami.
The experiment had a factorial design consisting of a combination of four concentrations of calcium sulfate (CaS[O.sub.4]) and four concentrations of ammomum sulphate [(N[[H.sub.4]).sub.2] S[O.sub.4]].
Piasecki; Use of calcium sulfate bone graft substitute for benign bone lesions; Orthopedics.;24:162-166; 2001.
Seven tenders for the supply of (a) 17,280 tons mazotte treatment materials, (b) 1,400 tons caustic soda in liquid form of 48 % concentration, (c) formaldehyde of 37 % concentration, (d) 690 tons artificial gypsum (calcium sulfate) of about 95 % purity in 33 to 35 Kg sacks, (e) 220 tons sulfuric acid of 98 % concentration, (f) 255 tons hydrochloric acid of 30 % concentration & (g) special material to attract and collect residuals.
The fine-grained rocks are filled with veins and spherical deposits, including what appears to be calcium sulfate - a mineral formed on Earth when water flows through rock fractures.
"These veins are composed mainly of hydrated calcium sulfate, such as bassinite or gypsum," ChemCam team member Nicolas Mangold of the Laboratoire de Planetologie et Geodynamique de Nantes, in Nantes, France, said.