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4-Nitrosophenol

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4-Nitrosophenol Basic information

Product Name:
4-Nitrosophenol
Synonyms:
  • P-NITROSOPHENOL
  • P-QUINONE MONOXIME
  • p-nitroso-pheno
  • Quinomeoxime
  • Quinone monoxime
  • Quinone(mon)oxime
  • quinonemonoxime
  • quinoneoxime
CAS:
104-91-6
MF:
C6H5NO2
MW:
123.11
EINECS:
203-251-6
Product Categories:
  • alcohol| nitro-compound
Mol File:
104-91-6.mol
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4-Nitrosophenol Chemical 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)
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Safety Information

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

MSDS

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4-Nitrosophenol Usage And Synthesis

Chemical Properties

black solid

Uses

Dyes.

Hazard

Dangerous fire and explosion risk, reacts violently with acids and alkalies, may explode spontaneously, intraplant transport must be in tightly covered steel barrels.

Safety Profile

Poison by parented 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. See also NITROSO COMPOUNDS.

Purification Methods

4-Nitrosophenol forms yellow crystals from xylene, *C6H6 (m ~144o) or Et2O (m 128-129o, dec). [Beilstein 7 H 622, 7 II 574, 7 III 3367.]

4-Nitrosophenol Preparation Products And Raw materials

Preparation Products

4-Nitrosophenol Supplier

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