- 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 laboratory device used to determine the flash point of mobile petroleum liquids flashing below 175_F (79.4_C). Also known as Tagliabue closed tester.
Industry:Chemistry
A color test for identification of pentose sugars; the sugars produce a cherry-red color when heated with a solution of benzidine in glacial acetic acid.
Industry:Chemistry
A stirred, specially shaped test-tube device used for the determination of the melting point of a crystalline chemical.
Industry:Chemistry
A test that uses an ammoniacal solution of silver oxides to test for aldehydes and ketones.
Industry:Chemistry
A United States Pharmacopoeia test to determine the carbonizable substances present in petroleum white oils.
Industry:Chemistry
A theory that the sample phase in gas chromatography flows continuously, not stepwise.
Industry:Chemistry
An obsolete apparatus used in laboratory fractional distillation; it is a long glass tube with indentation in its walls; a thermometer is placed at the top of the tube and a side arm is attached to a condenser.
Industry:Chemistry
Determination of the halogen content of a solution by titration with a standard thiocyanate solution.
Industry:Chemistry
An aqueous solution of iodine and potassium iodide; used for microchemical analysis of alkaloids. Also known as Wagner’s solution.
Industry:Chemistry
A device for vaporization of solvent from filter paper, leaving the solute in a ring (circular) shape; used for qualitative analysis of very small samples.
Industry:Chemistry
