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The sulfonic acid derivatives of 1-naphthylamine are used for the preparation of azo dye.These compounds possess the important property of dyeing unmordanted cotton.. An important derivative is naphthionic acid (1-aminonaphthalene-4-sulfonic acid), which is produced by heating 1-naphthylamine and sulfuric acid to 170–180 °C in the presence of crystallized oxalic acid.
Naphthylamine or aminonaphthalene can refer to either of two isomeric chemical compounds: 1-Naphthylamine (1-aminonaphthalene) 2-Naphthylamine (2-aminonaphthalene)
The standard state of a material (pure substance, mixture or solution) is a reference point used to calculate its properties under different conditions.A degree sign (°) or a superscript Plimsoll symbol (⦵) is used to designate a thermodynamic quantity in the standard state, such as change in enthalpy (ΔH°), change in entropy (ΔS°), or change in Gibbs free energy (ΔG°).
1-Naphthylamine; 2-Naphthylamine; Quinaldine This page was last edited on 28 August 2022, at 17:16 (UTC). Text is available under the Creative Commons Attribution ...
However, it is a weaker bidentate ligand as the nitrogen atom in the naphthylamine group is weakly coordinating due to the dispersal of charge by resonance. For example, it reacts with potassium tetrachloroplatinate in aqueous solution to give ( N -1-naphthyl-ethylenediamine)-dichloroplatinum(II).
N,N-Dimethyl-1-naphthylamine is an aromatic amine. It is formally derived from 1-naphthylamine by replacing the hydrogen atoms on the amino group with methyl groups . N , N -Dimethyl-1-naphthylamine is used in the nitrate reductase test to form a precipitate of a red azo dye by reacting with a nitrite - sulfanilic acid complex.
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