T9547730
4-Nitrobenzenesulfonic Acid Hydrate , >98.0%(T)(HPLC) , 138-42-1
CAS NO.：138-42-1
Empirical Formula: C6H5NO5S
Molecular Weight: 203.17
MDL number: MFCD00041886
EINECS: 205-329-5
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 105-112 °C |
| Density | 1.548 (estimate) |
| refractive index | 1.5380 (estimate) |
| storage temp. | -20°C Freezer, Under inert atmosphere |
| solubility | DMSO (Slightly, Sonicated), Water (Slightly) |
| form | Crystalline Powder |
| pka | -1.38±0.50(Predicted) |
| color | Beige to yellow-orange |
| Water Solubility | 476g/L(100.5 ºC) |
Description and Uses
4-Nitrobenzenesulfonic acid is less important than the ortho and meta isomers because sulfanilic acid and its derivatives are readily available from aniline and acetanilide.
Safety
| Symbol(GHS) |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H314-H335 |
| Precautionary statements | P280-P309+P311 |
| Hazard Codes | Xi,C |
| Risk Statements | 36/37/38 |
| Safety Statements | 37/39-26 |
| RIDADR | 2305 |
| Hazard Note | Corrosive/Irritant |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 29049090 |
