- 行业: Printing & publishing
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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.
Fe<sub>4</sub> (Fe(CN)<sub>6</sub>)<sub>3</sub> Ferric ferrocyanide, used as a blue pigment and in the removal of hydrogen sulfide from gases.
Industry:Chemistry
A blue pigment that precipitates from the reaction of potassium ferricyanide with a ferrous salt.
Industry:Chemistry
A pigment with a true red hue; contains 15–40% ferric oxide and 60–80% calcium sulfate.
Industry:Chemistry
A test for the presence of saccharides, utilizing the reduction of bismuth subnitrate to metallic bismuth, a precipitate.
Industry:Chemistry
The intensity of a beam of monochromatic radiation in an absorbing medium decreases exponentially with penetration distance. Also known as Beer-Lambert-Bouguer law; Lambert-Beer law.
Industry:Chemistry
The law that the change in intensity of light transmitted through an absorbing substance is related exponentially to the thickness of the absorbing medium and a constant which depends on the sample and the wavelength of the light. Also known as Lambert’s law.
Industry:Chemistry
An equational factor to correct for the depolarization effect of the horizontal components of scattered light during the determination of molecular weight by optical methods.
Industry:Chemistry
A procedure used to analyze organic compounds for sulfur, halogens, and phosphorus that involves heating the sample with fuming nitric acid in a sealed tube.
Industry:Chemistry
Monochromatic transparency effect when finely powdered substances, such as glass or quartz, are immersed in a liquid having the same refractive index.
Industry:Chemistry
A laboratory apparatus used to determine flash point and fire point of petroleum products.
Industry:Chemistry
