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Product Name:4-amino-2-naphthalenesulfonic acid
CAS:134-54-3
Package:20mg
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| | 4-aminonaphthalene-2-sulphonic acid Basic information |
| | 4-aminonaphthalene-2-sulphonic acid Chemical Properties |
| density | 1.502±0.06 g/cm3(Predicted) | | pka | -0.59±0.40(Predicted) |
| | 4-aminonaphthalene-2-sulphonic acid Usage And Synthesis |
| Chemical Properties | 1-Aminonaphthalene-3-sulfonic acid [134- 54-3]. (4-aminonaphthalene-2-sulfonic acid), C10H9NO3S, Mr 223.24, is only sparingly soluble in water, but its alkali-metal salts are readily soluble. Sulfonation with 20 % oleum yields 1-aminonaphthalene-3,5-disulfonic acid, and heating with water under pressure gives 1- hydroxynaphthalene-3-sulfonic acid, which can also be obtained by diazotization and acid hydrolysis of 1-Aminonaphthalene-3-sulfonic acid. | | Production Methods | 1-Aminonaphthalene-3,8-disulfonic acid in dilute sodium hydroxide solution is pumped at 40℃ through a special reactor that effects contact with continuously produced sodium amalgam. The resulting liquor is used directly for production of 1- hydroxynaphthalene-3-sulfonic acid. |
| | 4-aminonaphthalene-2-sulphonic acid Preparation Products And Raw materials |
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