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    A Quick And Easy Recipe For Synthetic Rubies | Hackaday,  · Like their gemstone cousin the sapphire, rubies are just a variety of corundum, or aluminum oxide. Where sapphire gets its blue tint mainly from iron, rubies get their pink to blood-red hue from ...Thin,  · Thin-film interference is a natural phenomenon in which light waves reflected by the upper and lower boundaries of a thin film interfere with one another, either enhancing or reducing the reflected light.When the thickness of the film is an odd multiple of one quarter-wavelength of the light on it, the reflected waves from both surfaces interfere to cancel each other.Inorganic Pigments for Paints, Coatings and Inks,  · Inorganic pigments are undoubtedly the go-to pigment market for brighter, stable and long lasting pigments. Want to know more about inorganic pigments? Find the list of inorganic pigment families discussed in detail here and hence chose the ideal pigment for your paint/coating/ink formulation.Hycamtin Capsules,  · Hycamtin Capsules, contain topotecan hydrochloride, the content of which is expressed as topotecan free base. Each 0.25 mg and 1 mg capsule contain topotecan hydrochloride equivalent to 0.25 mg and 1 mg topotecan free-base, respectively. The excipients are ...JCI,  · In addition, Dps oxidizes ambient iron from Fe 2+ to Fe 3+ and creates an iron oxide mineral at the ferroxidase center in each Dps subunit. This oxidation and mineralization reaction of iron requires the reduction of H 2 O 2 ()..

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    What is the chemical formula for steel?,  · Carbon steel, composed simply of iron and carbon, accounts for 90% of steel production. Low alloy steel is alloyed with other elements, usually molybdenum, manganese, chromium, or nickel, in amounts of up to 10% by weight to improve the hardenability of thick sections.Pyrophoric Control and Neutralization Using FQE Chemicals,  · Pyrophoric Iron (FeS) is a form of iron sulfide that combusts on exposure to oxygen; in this case with air. It is formed by reaction of hydrogen sulfide with carbon steel. The iron in the steel reacts with hydrogen sulfide to create an iron crust scale on the metal surface.How to Make Quicklime: 10 Steps (with Pictures),  · Quicklime, also known as calcium oxide (CaO), is a caustic alkaline substance. It has been used by humans for centuries for many things such as mortar, flux, treating corn, and in mixtures to waterproof boats. It has also been used to...Iron ore,  · Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe3 O 4, 72.4% Fe), hematite (Fe ...How does sand form?,  · The tan color of most sand beaches is the result of iron oxide, which tints quartz a light brown, and feldspar, which is brown to tan in its original form. Black sand comes from eroded volcanic material such as lava, basalt rocks, and other dark-colored rocks and minerals, and is typically found on beaches near volcanic activity..

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    Iron ore,  · Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe3 O 4, 72.4% Fe), hematite (Fe ...Iron and steel,  · Photo: Iron in action: Chances are you're using magnetic iron (III) oxide right this minute in your computer's hard drive. Broadly, iron's compounds can be divided into two groups known as ferrous and ferric (the old names) or iron (II) and iron (III); you can always