2-NAPHTHYLAMINE-4,6,8-TRISULFONIC ACID [ 27310-25-4 ]
- Refractive index
- 1.748
Chemical properties dark brown with the blue fluorescence solution. In a neutral and alkali medium stability.
Use dyes 2 - naphthalene acid amine three yarn intermediates, used for manufacturing activity 2RAZ, active golden K - colourful orange yellow, active 7R k-type 7G, active KN - yellow M - regular, active golden K - 2RA etc.
Purpose is to produce a variety of active dyes light color of varieties of intermediates
Production methods will be dried amino acid C (2-2 4,8 amine naphthalene acid) with 20% oleum sulphonated 125-170, in ℃ insulation 17h, diluted by ice water with calcium carbonate and thymol blue to Congo red and dilution changeless, filtration, concentration and get.
Use dyes 2 - naphthalene acid amine three yarn intermediates, used for manufacturing activity 2RAZ, active golden K - colourful orange yellow, active 7R k-type 7G, active KN - yellow M - regular, active golden K - 2RA etc.
Purpose is to produce a variety of active dyes light color of varieties of intermediates
Production methods will be dried amino acid C (2-2 4,8 amine naphthalene acid) with 20% oleum sulphonated 125-170, in ℃ insulation 17h, diluted by ice water with calcium carbonate and thymol blue to Congo red and dilution changeless, filtration, concentration and get.