A6324912
4-Nitrosophenol (wetted with <i>ca</i>. 40% Water) (unit weight on dry weight basis) , > 98.0%(t) (about 40%hydraulic products) (the unit weight is dry weight) , 104-91-6
CAS NO.：104-91-6
Empirical Formula: C6H5NO2
Molecular Weight: 123.11
MDL number: MFCD00002329
EINECS: 203-251-6
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 132-144°C |
| Boiling point: | 229.19°C (rough estimate) |
| Density | 1.3147 (rough estimate) |
| vapor pressure | 0.003Pa at 20℃ |
| refractive index | 1.5423 (estimate) |
| solubility | soluble in Methanol |
| form | powder to crystal |
| pka | pK1:6.48 (25°C) |
| color | Pale-yellow, orthorhombic needles |
| Water Solubility | <0.1 g/100 mL at 21 ºC |
| Merck | 14,6642 |
| Stability: | Stability Flammable. Incompatible with strong oxidizing agents. Explodes when heated, or in contact with acids or alkalies. |
| LogP | 1.1 at 20℃ |
| CAS DataBase Reference | 104-91-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Phenol, 4-nitroso-(104-91-6) |
| EPA Substance Registry System | p-Nitrosophenol (104-91-6) |
Description and Uses
Dyes.
Safety
| Symbol(GHS) |      GHS02,GHS05,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H228-H302-H315-H318-H341-H411 |
| Precautionary statements | P241-P301+P312-P280 |
| Hazard Codes | Xn,N |
| Risk Statements | 21/22-40-41-68-51/53-22 |
| Safety Statements | 15-24/25-26-61-49-47-36/37/39 |
| RIDADR | 3236 |
| RTECS | SM4725000 |
| HazardClass | 4.1 |
| PackingGroup | II |
| HS Code | 2908990000 |
| Hazardous Substances Data | 104-91-6(Hazardous Substances Data) |
| Toxicity | mmo-sat 50 mg/plate FCTXAV 18,523,80 |
