P-Aminobenzene Sulfonic Acid White Powder 

P-Aminobenzene Sulfonic Acid is white to off-white powder, slightly dissolves in cold water, apt to dissolve in caustic soda solution and sodium carbonate solution, not dissolving in such organic solvents as the ethanol and ether ,etc.; density: 1.485(25oC/4oC), melting point:288oC,resolve in 300oC. Product Description  white to off-white powder Content(total amido number)%≥99.0 Aniline Content %≤0.02 Water Insolubles Content %≤0.10 Cas no: 121-57-3 M.F.  C6H7NO3S M.W 173 Usage        1. P-Aminobenzene Sulfonic Acid is one important dyes intermediates, it can be used in Acid orange ,Acid light yellow 2G,Acid intermediary yellowish brown 4G,Acid intermediary dark yellow GG, Direct yellow GR,Reactive yellow K-RN, Brilliant red K-2G, datish red K-DG and blue K-3R, etc. 2. P-Aminobenzene Sulfonic Acid also can be used in production of dyes Whitening agent, such as solute salt B, o…