N,N,N,N-Tetramethylp-phenylenediamine

[Structural formula]

[Physical and chemical properties] N,N,N,N-tetramethyl-p-phenylenediamine is a shiny flake crystal precipitated from petroleum ether

[Preparation method] Use phenylenediamine to react with chloroacetic acid to generate phenyldiiminotetraacetic acid, and then carry out decarboxylation reaction to obtain a finished product

[Application] N, N, N, N-tetramethyl p-phenylenediamine is toxic.

N, N, N, N-tetramethyl-p-phenylenediamine has a strong ability to remove oxygen, can enhance the passivation of the metal surface in the furnace water, and has a high gas-liquid ratio, generally 2-8, the highest Up to 12.

In order to prevent this kind of oxygen scavenger from cracking due to the action of air, it is often compounded with some antioxidants, such as the scavenger diethylhydroxylamine, citric acid , malic acid , orthophosphate and EDTA and other water treatment agents to enhance water quality stability Therefore, it has good comprehensive performances such as deoxidation, anti-corrosion and passivation.

Related links: Preparation method of cyclohexamine (2)