- 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.
A procedure of fractional sublimation in which a solid mixture is separated into bands along a condensing tube with a temperature gradient.
Industry:Chemistry
Qualitative or quantitative analysis of chemicals that are in quantities of the order of grams.
Industry:Chemistry
Liquid solution of known chemical composition and concentration, hence of known and standardized color, used for optical analysis of samples of unknown strength.
Industry:Chemistry
A portion taken from a sample of material for which a chemical analysis has been specified.
Industry:Chemistry
Reagent used to analyze for phosphorus; consists of the filtered liquor from an aqueous mixture of ammonium chloride, magnesium sulfate, and ammonia.
Industry:Chemistry
The quantitative analysis of a substance by comparing the intensity of the color produced in a sample by a reagent with a standard color produced similarly in a solution of known strength.
Industry:Chemistry
The number of milligrams of sulfur per 100 milliliters of sample, determined by electrometric titration; used in the petroleum industry for oils.
Industry:Chemistry
A substance that decreases the concentration of a free metal ion or ligand by conversion into an essentially unreactive form, thus preventing undesirable chemical reactions that would interfere with the determination. Also known as masking agent.
Industry:Chemistry
In an ion-exchange process, discoloration of the liquid passing through the bed.
Industry:Chemistry
1. Method to determine the sulfur content of a petroleum material by combustion in a bomb. 2. Analysis of sulfur in petroleum products by lamp combustion in which combustion of the sample is controlled by varying the flow of carbon dioxide and oxygen to the burner.
Industry:Chemistry
