Reagent
71Nessler's reagent — Neßler s reagent is a reagent named after Julius Neßler and is used to detect small amounts of ammonia. It is a 0.09 mol/L solution of potassium tetraiodomercurate(II) (K2 [HgI4] ) in 2.5 mol/L potassium hydroxide. A yellow coloration indicates… …
72Schweizer's reagent — is the common name for the complex tetra aminecopper dihydroxide, [Cu(NH3)4] [OH] 2. It is prepared by precipitating copper(II) hydroxide from an aqueous solution of copper sulfate using sodium hydroxide, then dissolving the precipitate in a… …
73Mayer's reagent — Mayer s reagnent is an alkaloidal precipitating reagent used for the detection of alkaloids in natural products. Mayer’s reagent is freshly prepared by dissolving a mixture of mercuric chloride (1.36 g) and of potassium iodide (5.00 g) in water… …
74Millon's reagent — Mil·lon s reagent mē lōnz or Mil·lon reagent mē lōn n a solution that is usu. made by dissolving mercury in concentrated nitric acid and diluting with water and that when heated with phenolic compounds gives a red coloration used as a test esp.… …
75FOX reagent — The FOX reagent is used to measure levels of hydrogen peroxide in biological systems. The reagent is incubated with the sample and absorbance is then measured at 560 nm. It is an aqueous solution of ferrous ammonium sulfate, sorbitol, sulfuric… …
76TASF reagent — Chembox new ImageFile = TASF.png ImageSize = 200px IUPACName = Tris(dimethylamino)sulfonium difluorotrimethylsilicate OtherNames = Section1 = Chembox Identifiers CASNo = 59218 87 0 PubChem = SMILES = C [N] (C)=S(N(C)C)/N(C)C.C [Si] (C)(C)(F)F… …
77Baeyer's reagent — Baeyer s reagent, named after the German organic chemist Adolf von Baeyer, is used in organic chemistry as a qualitative test for the presence of unsaturation, such as double bonds. The bromine test is also able to determine the presence of… …
78Sanger's reagent — Sanger s reagent, or 1 fluoro 2,4 dinitrobenzene (commonly called dinitrofluorobenzene or DNFB), is a chemical used for polypeptide sequencing. In 1945, Frederick Sanger described its use for determining the N terminal amino acid in polypeptide… …
79Schiff's reagent — [shifs] n. Chem. a colorless solution of fuchsin and sulfurous acid used as a reagent to identify an aldehyde from a ketone from the shade of reddish purple produced, to stain DNA, etc. * * * …
80Grignard reagent — Chem. any of the group of reagents produced by the interaction of magnesium and an organic halide, usually in the presence of an ether, and having the general formula RMgX, where R is an organic group and X is a halogen: used in the Grignard… …
