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HomeProduct name list2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid

2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid

  • CAS NO.:6535-70-2
  • Empirical Formula: C10H9NO7S2
  • Molecular Weight: 319.31
  • MDL number: MFCD03411983
  • EINECS: 229-445-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-11-07 17:08:33
2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid Structural

What is 2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid?

The Uses of 2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid

Sulfo J acid is used as a coupling component in azo reactive dyes, e.g., C.I. Reactive Red 6.

Production Methods

2-Aminonaphthalene-1,5,7-trisulfonic acid is heated with sodium hydroxide liquor at 170℃ and worked up in a similar way to the K acid. Alternatively, J acid may be sulfonated with 65 % oleum.

Flammability and Explosibility

Not classified

Properties of 2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid

Boiling point: 603.18℃[at 101 325 Pa]
Density  1.880
vapor pressure  0Pa at 25℃
pka -0.42±0.40(Predicted)
Water Solubility  35.36g/L at 25℃
CAS DataBase Reference 6535-70-2(CAS DataBase Reference)

Safety information for 2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid

Computed Descriptors for 2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid

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