ammonium dichromate


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ammonium dichromate

[ə′mōn·yəm dī′krō‚māt]
(inorganic chemistry)
(NH4)2Cr2O7 A salt that forms orange, monoclinic crystals; made from ammonium sulfate and sodium dichromate; soluble in water and alcohol; ignites readily; used in photography, lithography, pyrotechnics, and dyeing. Also known as ammonium bichromate.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
His earliest inkling of a future career was second grade, when he watched his teacher create the classic chemical volcano, using ammonium dichromate. As the chromium decomposes, it glows and emits sparks, producing lots of green chromium oxide ash.
The substances, which include trichloroethylene; boric acid; disodium tetraborate, anhydrous; tctraboron disodium heptaoxide, hydrate; sodium eliminate; potassium chromate; ammonium dichromate; and potassium dichromate, are proposed because of their potentially serious effects on human health.
Three member states - Denmark, France and Germany - have put forward proposals to identify eight chemical substances as SVHC: trichloroethylene; boric acid; disodium tetraborate, anhydrous; tetraboron disodium heptaoxide, hydrate; sodium chromate; potassium chromate; ammonium dichromate; and potassium dichromate.