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| CAS No.: | 104-91-6 |
|---|---|
| Name: | 4-Nitrosophenol |
| Article Data: | 66 |
| Molecular Structure: | |
|
|
|
| Formula: | C6H5NO2 |
| Molecular Weight: | 123.111 |
| Synonyms: | Phenol,p-nitroso- (6CI,8CI);4-Nitrosophenol;NSC 3124;Nitrosophenol;p-Nitrosophenol; |
| EINECS: | 203-251-6 |
| Density: | 1.236 g/cm3 |
| Melting Point: | 132-144°C |
| Boiling Point: | 265.866 °C at 760 mmHg |
| Flash Point: | 114.592 °C |
| Solubility: | <0.1 g/100 mL at 21℃ |
| Appearance: | humid dark powder |
| Hazard Symbols: |
 Xn, N
|
| Risk Codes: | 21/22-40-41-68-51/53-22 |
| Safety: | 15-24/25-26-61-49-47-36/37/39 |
| Transport Information: | UN 3236 |
| PSA: | 49.66000 |
| LogP: | 1.79010 |
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Chemistry
MF: C6H5NO2
MW: 123.11
EINECS: 203-251-6
Density: 1.23 g/cm3
Flash Point: 114.6 °C
Melting Point: 132-144°C
Index of Refraction: 1.564
Solubility in water: 8 g/L
IUPAC Name: 4-nitrosophenol
Enthalpy of Vaporization: 52.41 kJ/mol
Boiling Point: 265.9 °C at 760 mmHg
Vapour Pressure: 0.00544 mmHg at 25°C
Water Solubility: <0.1 g/100 mL at 21 ºC
Appearance: Light yellow needle-like crystal rhombus
Stability: Stability Flammable. Incompatible with strong oxidizing agents. Explodes when heated, or in contact with acids or alkalies.
Synonyms: P-nitrosophenol ; P-quinone monoxime ; P-benzoquinone monoxime ; 1,4-Benzopuinonemonoxime ; 2,5-Cyclohexadiene-1,4-dionemonoxime ; 4-Nitrosofenol ; 4-Nitroso-pheno ; Enzoquinone monooxime
Following is the molecular structure of Nitrosofenol (104-91-6):
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Toxicity Data With Reference
| 1. | mmo-sat 50 µg/plate | FCTXAV Food and Cosmetics Toxicology. 18 (1980),523. | ||
| 2. | cyt-rat :lvr 750 µg/L | MUREAV Mutation Research. 153 (1985),57. | ||
| 3. | ipr-mus LDLo:250 mg/kg | CBCCT* “Summary Tables of Biological Tests“ National Research Council Chemical-Biological Coordination Center. 6 (1954),148. | ||
| 4. | par-mus LDLo:200 mg/kg | CBCCT* “Summary Tables of Biological Tests“ National Research Council Chemical-Biological Coordination Center. 7 (1955),692. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Poison by parenteral and intraperitoneal routes. Mutation data reported. An irritant and sensitizer. Many nitroso compounds are carcinogens. A very dangerous fire and explosion hazard. When exposed to heat or flame, it burns explosively. Contamination by acid or alkali may cause ignition. Can heat spontaneously and cause fire. When heated to decomposition it emits toxic fumes of NOx.
Safety Information of Nitrosofenol (104-91-6):
Hazard Codes: Xn,N
Xn: Harmful.gif){kind=small}
N: Dangerous for the environment .gif){kind=small}
Risk Statements: 21/22-40-41-68-51/53-22
21/22: Harmful in contact with skin and if swallowed
40: Limited evidence of a carcinogenic effect
41: Risk of serious damage to eyes
68: Possible risk of irreversible effects
51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
22: Harmful if swallowed
Safety Statements: 15-24/25-26-61-49-47-36/37/39
15: Keep away from heat
24/25: Avoid contact with skin and eyes
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 61: Avoid release to the environment. Refer to special instructions safety data sheet
49: Keep only in the original container
47: Keep at temperature not exceeding ... E C (to be specified by the manufacturer)
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
RTECS: SM4725000
HazardClass: 4.1
PackingGroup: II
Specification
Handling and Storage of Nitrosofenol (104-91-6):
Storage: Keep away from sources of ignition. Store in a cool, dry place. Do not store in direct sunlight.Store in a tightly closed container. Flammables-area.
Handling: All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.