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Organic Intermediate
Sodium Naphthionate
Sodium naphthionate is an important azo pigment intermediate, widely used in the synthesis of direct dyes and reactive dyes
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Technical Specification
Items | Index | |
Premium | First grade | |
Appearance | Off-white crystals, allow the color to darken during storage | |
Chemical content of Sodium Naphthionate/% | ≥75 | ≥74 |
Sodium Naphthionate(HPLC)/% | ≥98.5 | ≥98 |
1-Aminonaphthalene content/% | ≤0.02 | ≤0.02 |
use as the intermedia of the azo dyes mainly.
Packing: in 25kgs plastic woven bag
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