Product Description

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： Index Specification Appearance grey to light brown powder Content(J acid) % ≥ *0.0 Purity(HPLC) % ≥ *7.0 Γ Acid- Calculation by **0% J acid % ≤ 2.5 Bis J Acid- Calculation by **0% J acid % ≤ 0.5 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 **1, direct scarlet *3, reactive Brown K3R, carbonyl-j-acid and Bis-J-Acid etc.