ChemicalBook > CAS DataBase List > 4-aminonaphthalene-1,6-disulfonic acid
4-aminonaphthalene-1,6-disulfonic acid
- Product Name
- 4-aminonaphthalene-1,6-disulfonic acid
- CAS No.
- 85-75-6
- Chemical Name
- 4-aminonaphthalene-1,6-disulfonic acid
- Synonyms
- Dahl's acid III;1-naphthylamine-4,7-disulfonic acid;4-aminonaphthalene-1,6-disulfonic acid;4-Amino-1,6-naphthalenedisulfonic acid;4-aminonaphthalene-1,6-disulphonic acid;4-azanylnaphthalene-1,6-disulfonic acid;1,6-Naphthalenedisulfonic acid, 4-amino-
- CBNumber
- CB1875757
- Molecular Formula
- C10H9NO6S2
- Formula Weight
- 303.31
- MOL File
- 85-75-6.mol
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4-aminonaphthalene-1,6-disulfonic acid Property
- Boiling point:
- 205.8°C (rough estimate)
- Density
- 1.6329 (rough estimate)
- refractive index
- 1.7330 (estimate)
- EPA Substance Registry System
- 1,6-Naphthalenedisulfonic acid, 4-amino- (85-75-6)
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Safety
- RIDADR
- 1759
- HazardClass
- 8
- PackingGroup
- III
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4-aminonaphthalene-1,6-disulfonic acid Chemical Properties,Usage,Production
Description
1-Aminonaphthalene-4,7-disulfonic acid [85-75-6]. (4-aminonaphthalene-1,6-disulfonic acid), Dahl’s acid III, C10H9NO6S2, Mr 303.3, and its sodium salt are readily soluble in water, but the calcium and barium salts are only sparingly soluble. Conversion to 1-hydroxynaphthalene-4,7-disulfonic acid is achieved by reverse-Bucherer reaction or diazotization and hydrolysis. Sulfonation (35 % oleum, 90℃) yields 1-aminonaphthalene-2,4,7-trisulfonic acid.
Production Methods
?Although separation of 4-aminonaphthalene-1,6-disulfonic acid from the mixture obtained by sulfonation of naphthionic acid is not practicable on a large scale, the 1,4,7-isomer can be obtained directly in high yield by sulfonation of 1-aminonaphthalene-7-sulfonic acid with oleum.
4-aminonaphthalene-1,6-disulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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