 Origin |
Tianjin China |
The dry of J-acid is grey powder, difficultly soluble in water. Easily soluble alkali-creating correspondence salt. The liquid of its’ sodium salt is blue fluorescence. It’s the chlorine compound of J acid is acicular yellow crystal, soluble in water, can be coupled to purple dyes by itself when in the sodium carbonate solution.
Quality Standard：
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Index
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Specification
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Appearance
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grey to light brown powder
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Content(J acid) % ≥
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90.0
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Purity(HPLC) % ≥
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97.0
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Γ Acid- Calculation by 100% J acid % ≤
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2.5
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Bis J Acid- Calculation by 100% J acid % ≤
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0.5
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Usage: J acid is one of the important dyestuff intermediates. It is used for production many dyes as the material, such as direct copper blue 151,direct scarlet 23, reactive Brown K3R, carbonyl-j-acid and Bis-J-Acid etc.
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