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Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO 4 and related hydrates. In the form of γ- anhydrite (the anhydrous form), it is used as a desiccant . One particular hydrate is better known as plaster of Paris , and another occurs naturally as the mineral gypsum .
Chocolate lava cake smothered in chocolate sauce. Molten chocolate cakes characteristically contain five ingredients: butter, eggs, sugar, chocolate, and flour. [3] The butter and chocolate are melted together, while the eggs are either whisked with the sugar to form a thick paste, producing a denser pastry, or separated, with the white whipped into a meringue to provide more lift and a ...
Gypsum plaster, [12] also known as plaster of Paris, [13] is a white powder consisting of calcium sulfate hemihydrate. The natural form of the compound is the mineral bassanite . [ 14 ] [ 15 ]
A commercial retardant premix additive sold by USG to trade interior plasterers includes at least 40% potassium bitartrate. The remaining ingredients are the same plaster of Paris and quartz-silica aggregate already prominent in the main product. This means that the only active ingredient is the cream of tartar.
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 ·2H 2 O. [4] It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, drywall and blackboard or sidewalk chalk.
The history of chocolate cake goes back to the 17th century, when cocoa powder from the Americas was added to traditional cake recipes. [ 2 ] In 1828, Coenraad van Houten of the Netherlands developed a mechanical method for extracting the fat from cacao liquor, resulting in cacao butter and the partly defatted cacao , a compacted mass of solids ...
In 1957, a recipe for "German's Chocolate Cake" appeared as the "Recipe of the Day" in The Dallas Morning News. [2] It was created by Mrs. George Clay, a homemaker from Dallas, Texas, [2] and used the "German's Sweet Chocolate" baking chocolate introduced over a century earlier in 1853 by American baker Samuel German for the Baker's Chocolate Company of Boston, Massachusetts. [3]
The plaster is modified with the addition of animal glues such as isinglass or hide glue. 'Marezzo scagliola' is worked with the pigmented batches of plaster in a liquid state and relies mainly on the use of Keene's cement, a unique gypsum plaster product in which plaster of Paris was steeped in alum or borate, then burned in a kiln and ground ...