2,5-Xylenol

Bezeichnung:2,5-Xylenol

CAS-Nr95-87-4

Englisch Name:2,5-Dimethylphenol

CBNumberCB2167439

SummenformelC8H10O

Molgewicht122.16

MOL-Datei95-87-4.mol

Synonyma

2,5-Xylenol

2,5-Xylenol physikalisch-chemischer Eigenschaften

Schmelzpunkt	75-77 °C
Siedepunkt	212 °C(lit.)
Dichte	0.971 g/mL at 25 °C(lit.)
Dampfdruck	0.208 hPa (25 °C)
Brechungsindex	1.5120
FEMA	3595 \| 2,5-XYLENOL
Flammpunkt	85 °C
storage temp.	Store below +30°C.
Löslichkeit	3.54g/l slightly soluble
Aggregatzustand	Crystals
pka	pK1:10.22 (25°C)
Farbe	slightly brown
Geruch (Odor)	at 0.10 % in propylene glycol. sweet naphthyl phenolic smoke bacon
Geruchsart	phenolic
Explosionsgrenze	1.4%(V)
Wasserlöslichkeit	1 g/100 mL (60 ºC)
Merck	14,10082
JECFA Number	706
BRN	1099260
Expositionsgrenzwerte	ACGIH: TWA 1 ppm
InChIKey	NKTOLZVEWDHZMU-UHFFFAOYSA-N
LogP	2.34-2.6 at 25℃
CAS Datenbank	95-87-4(CAS DataBase Reference)
NIST chemische Informationen	Phenol, 2,5-dimethyl-(95-87-4)
EPA chemische Informationen	2,5-Dimethylphenol (95-87-4)

Sicherheit

Kennzeichnung gefährlicher	T,N
R-Sätze:	24/25-34-51/53
S-Sätze:	26-36/37/39-45-61
RIDADR	UN 2261 6.1/PG 2
WGK Germany	3
RTECS-Nr.	ZE5775000
TSCA	Yes
HazardClass	6.1
PackingGroup	II
HS Code	29071400
Giftige Stoffe Daten	95-87-4(Hazardous Substances Data)

Gefahreninformationscode (GHS)

2,5-Dimethylphenol 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
2,5-Xylenol has a creosote, sweet, medicinal taste.
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.
Definition
ChEBI: 2,5-xylenol is a member of the class of phenols that phenol substituted by methyl groups at positions 2 and 5. It has a role as a volatile oil component and an animal metabolite. It derives from a hydride of a p-xylene.
Aroma threshold values
Detection: 400 ppb
Taste threshold values
Taste characteristics at 10 ppm: musty, chemical, stringent and phenolic.
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-Dimethylphenol Upstream-Materialien And Downstream Produkte

2,5-Xylenol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

95-87-4, 2,5-Dimethylphenol Verwandte Suche:

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