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The term liquid chalk, or sharkchalk, refers to several different kinds of liquified chalk including liquid-chalk marking pens (with water-soluble ink), liquid-chalk mixtures (for athletic use: rock climbing, weightlifting, gymnastics), and liquid-chalk hobby-craft paints made of cornstarch and food coloring (some with small amounts of flour).
Wet wipe markers were often used on overhead projector transparencies, as they could be stored and transported easily, unlike a traditional chalkboard. With the rise of computerized slide-shows (e.g. PowerPoint ) in the classroom and office, overhead usage has reduced substantially, and with it, the wet wipe marker.
Glauber's salt – sodium sulfate.Na 2 SO 4; Sal alembroth – salt composed of chlorides of ammonium and mercury.; Sal ammoniac – ammonium chloride.; Sal petrae (Med. Latin: "stone salt")/salt of petra/saltpetre/nitrate of potash – potassium nitrate, KNO 3, typically mined from covered dungheaps.
Hagoromo Bungu sold the following chalk products: [5] [16] Fulltouch Chalk: calcium chalk; Fulltouch Large Chalk: calcium chalk, 2 cm in diameter and 11.3 cm in length, available in white, red, orange, yellow, green, and blue [25] Fulltouch New Poly: gypsum chalk, sometimes known as plaster chalk; Fulltouch Luminous Color Chalk: gypsum chalk
In the process of checking the quality, specialists will check in the lab for physical and chemical characteristics such as pH determination, viscosity checks, appearance and odor evaluations. In case of mistake such as the ingredients are not enough for making correction fluid, this problem will be solved by adding more ingredients.
Whitewash, calcimine, kalsomine, calsomine, asbestis or lime paint is a type of paint made from slaked lime (calcium hydroxide, Ca(OH) 2) or chalk (calcium carbonate, CaCO 3), sometimes known as "whiting". Various other additives are sometimes used.
Distemper is an early form of whitewash, also used as a medium for artistic painting, usually made from powdered chalk or lime and size (a gelatinous substance). Alternatives to chalk include the toxic substance white lead.
Elemental chlorine-free bleaching is more environmentally friendly since it eliminates the use of hypochlorite and replaces chlorine with chlorine dioxide or sodium chlorate. [3] Totally chlorine-free bleaching utilizes oxygen and hydrogen peroxide. This is the most environmentally friendly process since it eliminates all chlorinated pollutants ...