2-ヒドロキシ-5-[(2-メトキシフェニル)アゾ]安息香酸

2-ヒドロキシ-5-[(2-メトキシフェニル)アゾ]安息香酸 化学特性,用途語,生産方法

• 製造方法

  O-Anisidine diazotized, coupled with 2-Hydroxybenzoic acid.

• Properties and Applications

  brilliant yellow. Soluble in boiling water for yellow. In concentrated sulfuric acid for yellow brown, dilution after yellow red, then become yellow solution, and accompanied by yellow precipitation. Dye aqueous solution to join hydrochloric acid have yellow precipitation, solution into colloidal; With sodium hydroxide as titian solution and precipitation. Non-crystalline state product melting point 200 ℃. Used for alcohol, esters solvent, grease, paraffin wax, alcohol soluble paint color.
  

  Standard	Light Fastness	Heat-resistant(℃)		water	Sodium Carbonate(5%)	Hydrochloric acid(5%)
  		Melting point	Stable
  ISO	Good		150	Well	Well	No change

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