- 업종: Printing & publishing
- Number of terms: 178089
- Number of blossaries: 0
- Company Profile:
McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
El rango de valores dentro de la cual se ha calculado que un porcentaje especificado de valores individuales de las mediciones se acostará con un nivel de confianza establecido.
Industry:Chemistry
Adsorción preferencial de compuestos químicos (gases o líquidos) en una secuencia ascendente de peso molecular en un material adsorbente sólido, tales como carbón activado, alúmina o gel de sílice; utilizado para el análisis y separación de mezclas químicas.
Industry:Chemistry
1. (NH<sub>4</sub>)<sub>2</sub>CO<sub>3</sub> The normal ammonium salt of carbonic acid, prepared by passing gaseous carbon dioxide into an aqueous solution of ammonia and allowing the vapors (ammonia, carbon dioxide, water) to crystallize. 2. NH<sub>4</sub>HCO<sub>3</sub>_NH<sub>2</sub>COONH<sub>4</sub> A white, crystalline double salt of ammonium bicarbonate and ammonium carbamate obtained commercially; the principal ingredient of smelling salts.
Industry:Chemistry
Fe(OH)<sub>3</sub> A brown powder, insoluble in water; used as arsenic poisoning antidote, in pigments, and in pharmaceutical preparations. Also known as ferric hydrate; iron hydroxide.
Industry:Chemistry
(COCl)<sub>2</sub> Toxic, colorless liquid boiling at 64_C; soluble in ether, benzene, and chloroform; used as a chlorinating agent and for military poison gas.
Industry:Chemistry
Na<sub>5</sub> P<sub>3</sub>O<sub>10</sub> A white powder with a melting point of 622_C; used for water softening and as a food additive and texturizer. Abbreviated STPP.
Industry:Chemistry
NH<sub>4</sub>Cl A white crystalline salt that occurs naturally as a sublimation product of volcanic action or is manufactured; used as an electrolyte in dry cells, as a flux for soldering, tinning, and galvanizing, and as an expectorant.
Industry:Chemistry
Na<sub>2</sub> WO<sub>4</sub>_2H<sub>2</sub>O Water-soluble, colorless crystals; lose water at 100_C, melts at 692_C; used as a chemical intermediate analytical reagent, and for fireproofing. Also known as sodium wolframate.
Industry:Chemistry
(NH<sub>4</sub>)<sub>2</sub>CrO<sub>4</sub> A salt that forms yellow, monoclinic crystals; made from ammonium hydroxide and ammonium dichromate; used in photography as a sensitizer for gelatin coatings.
Industry:Chemistry
(NH<sub>4</sub>)<sub>2</sub>SiF<sub>6</sub> Un polvero toxico, blanco, cristalino ; soluble en alcohol y agua; utilizado para testar mozos, gratos de vidrio, y electroplatos. Conocido tambien como fluorido silicon de ammonio.
Industry:Chemistry
