LN-306730
8-Hydroxy-2-naphthylamine-3,6-disulfonic acid , 90-40-4
Update time: 2023-04-23
PRODUCT Properties
| Boiling point: | 603.18℃[at 101 325 Pa] |
| Density | 1.88[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| Water Solubility | 35.36g/L at 25℃ |
| LogP | -2.334 |
| EPA Substance Registry System | 2,7-Naphthalenedisulfonic acid, 3-amino-5-hydroxy- (90-40-4) |
Description and Uses
The RR acid is used as a coupling component in azo dyes, e.g., C.I. Food Black 2 and C.I. Direct Brown 151.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H319 |
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313P |
