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Minium/red lead – trilead tetroxide, Pb 3 O 4; formed by roasting litharge in air. Naples yellow/cassel yellow – oxychloride of lead, formed by heating litharge with sal ammoniac. Mercurius praecipitatus – red mercuric oxide. Mosaic gold – stannic sulfide, formed by heating a mixture of tin filings, sulfur, and sal-ammoniac.
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).
[1] The United States Supreme Court has defined "composition of matter" to mean "all compositions of two or more substances and all composite articles, whether they be the results of chemical union, or of mechanical mixture, or whether they be gases, fluids, powders or solids."
The term "calcium ammonium nitrate" is applied to multiple different, but closely related formulations. One variety of calcium ammonium nitrate is made by adding powdered limestone to ammonium nitrate; [1] [2] another, fully water-soluble version, is a mixture of calcium nitrate and ammonium nitrate, which crystallizes as a hydrated double salt: [3] 5Ca(NO 3) 2 •NH 4 NO 3 •10H 2 O.
In a section entitled "Professional Prescriptions" is a formula for "diarrhoea (acute)": Tincture opium, deodorized, 15 drops; Subnitrate of bismuth, 2 drachms; Simple syrup, 1 ⁄ 2 ounce; Chalk mixture, 1 1 ⁄ 2 ounces, "A teaspoonful every two or three hours to a child one year old." "Diarrhoea (chronic)": Aqueous extract of ergot, 20 ...
Chalk is so common in Cretaceous marine beds that the Cretaceous Period was named for these deposits. The name Cretaceous was derived from Latin creta, meaning chalk. [10] Some deposits of chalk were formed after the Cretaceous. [11] The Chalk Group is a European stratigraphic unit deposited during the late Cretaceous Period.
Play Just Words free online! If you love Scrabble, you'll love the wonderful word game fun of Just Words. ... Solitaire: Classic Flip 3. Play. Masque Publishing. Solitaire: Classic Las Vegas. Play ...
A typical problem would be to make an intimate mixture of 75% chalk and 25% clay, and burn this to produce an ”artificial cement". ... Mix 1 Mix 2 Mix 3 SiO 2: 13 ...