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 |  | 3,4-Diaminobenzenesulfonic acid Basic information |  
  
 |  | 3,4-Diaminobenzenesulfonic acid Chemical Properties |  
 | Melting point  | -12 °C |  | Boiling point  | 178-179 °C3 mm Hg(lit.) |  | density  | 0.936 g/mL at 25 °C(lit.) |  | refractive index  | n20/D 1.441(lit.) |  | Fp  | >230 °F |  | storage temp.  | Keep in dark place,Sealed in dry,Room Temperature |  | solubility  | hexane, toluene, ethanol and acetone: soluble |  | pka | -0.52±0.50(Predicted) |  | form  | Solid |  | color  | Dark Brown |  | CAS DataBase Reference | 7474-78-4(CAS DataBase Reference) |  | EPA Substance Registry System | Benzenesulfonic acid, 3,4-diamino- (7474-78-4) |  
  
| Hazard Codes  | Xi |  | Risk Statements  | 36/37/38 |  | Safety Statements  | 26-36 |  | WGK Germany  | 1 |  | RTECS  | VS1150000 |  
  
 |  | 3,4-Diaminobenzenesulfonic acid Usage And Synthesis |  
 | Uses | 3,4-Diaminobenzenesulfonic Acid is a useful organic synthetic reagent and a sulfonate-aminium zwitterion. |  
  
 |  | 3,4-Diaminobenzenesulfonic acid Preparation Products And Raw materials |  
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