2,5-Xylenol Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R24/25:Giftig bei Berührung mit der Haut und beim Verschlucken.
R34:Verursacht Verätzungen.
R51/53:Giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Chemische Eigenschaften
WHITE TO CREAM COLORED CRYSTALS
Occurrence
Reported found in coffee, smoked fatty fish, processed lean fish, malt whiskey, Scotch blended whiskey, katsuobushi
(dried bonito) and kumazasa (Sasa albo-marginata).
Verwenden
Used to make phenolic resins and (in isomeric mixtures) as an antioxidant for lubricating oils, gasoline, and elastomers. Also used as perfuming agents.
Allgemeine Beschreibung
Colorless to off-white crystalline solid. Odor threshold concentration 0.4 mg/L. Taste threshold concentration 0.5 mg/L.
Air & Water Reaktionen
2,5-Dimethylphenol is hygroscopic. Insoluble in water.
Reaktivität anzeigen
2,5-Dimethylphenol is incompatible with bases, acid chlorides, acid anhydrides and oxidizing agents. 2,5-Dimethylphenol corrodes steel, brass, copper and copper alloys.
Health Hazard
Symptoms of exposure to this compound may include severe irritation and burns of the skin and eyes; irritation of the respiratory tract, dizziness, stomach pain, exhaustion, coma and damage to the liver or kidneys. Other symptoms include headache, nausea and vomiting. It may cause corrosion of the tissues of the mucous membranes and upper respiratory tract, eyes and skin. Inhalation may result in burning sensation, coughing, wheezing, laryngitis and shortness of breath. Inhalation may be fatal as a result of spasm, inflammation and edema of the larynx and bronchi; chemical pneumonitis and pulmonary edema. Symptoms of exposure to this class of compounds include skin sensitization, profuse sweating, painless blanching or erythema of the skin, intense thirst, diarrhea, cyanosis from methemoglobinemia, hyperactivity, stupor, blood pressure fall, hyperpnea, abdominal pain, hemolysis and convulsions. If death from respiratory failure is not immediate, jaundice and oliguria or anuria may occur.
Brandgefahr
Flash point data for 2,5-Dimethylphenol are not available. 2,5-Dimethylphenol is probably combustible.
Sicherheitsprofil
Poison by ingestion.
Moderately toxic by an unspecified route.
When heated to decomposition it emits
acrid smoke and irritating fumes.
Questionable carcinogen with experimental
tumorigenic data. Used in disinfectants,
solvents, pharmaceuticals, plasticizers, and
wetting agents. See also other xylenol
entries.
läuterung methode
Crystallise 2,5-xylenol from EtOH/ether. [Beilstein 6 IV 3164.]
2,5-Xylenol Upstream-Materialien And Downstream Produkte
Upstream-Materialien
2,5-Xylidin
3,4-Xylenol
3-Methylanisol
2,3-Xylenol
Methanol
m-Kresol
2,6-Xylenol
α-Methoxy-p-xylol
2,2',5,5'-TETRAMETHYLBIPHENYL
2,4-Dimethylanisol
2-Fluoro-p-Xylene
2,5-Dimethylanisol
2,4-Xylenol
4-Methylbenzylalkohol
Downstream Produkte
