3-Dimethylaminophenol

Bezeichnung:3-Dimethylaminophenol

CAS-Nr99-07-0

Englisch Name:3-Dimethylaminophenol

CBNumberCB9177961

SummenformelC8H11NO

Molgewicht137.18

MOL-Datei99-07-0.mol

Synonyma

3-Dimethylaminophenol

3-Dimethylaminophenol physikalisch-chemischer Eigenschaften

Schmelzpunkt	82-84 °C(lit.)
Siedepunkt	265-268°C
Dichte	1.0976 (rough estimate)
Brechungsindex	1.5895 (estimate)
Flammpunkt	148 °C
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
Löslichkeit	DMSO (Slightly), Methanol (Slightly)
pka	10.06±0.10(Predicted)
Aggregatzustand	Powder
Farbe	violet
PH	7 (10g/l, H2O, 20℃)(slurry)
Wasserlöslichkeit	SLIGHTLY SOLUBLE
Sensitive	Light Sensitive
BRN	774631
Stabilität	Stable. May be air-sensitive. Combustible. Incompatible with strong oxidizing agents.
InChIKey	MESJRHHDBDCQTH-UHFFFAOYSA-N
CAS Datenbank	99-07-0(CAS DataBase Reference)
NIST chemische Informationen	Phenol, 3-(dimethylamino)-(99-07-0)
EPA chemische Informationen	m-(Dimethylamino)phenol (99-07-0)

Sicherheit

Kennzeichnung gefährlicher	Xi,Xn
R-Sätze:	36/37/38-20/21/22
S-Sätze:	26-36-36/37/39-22
WGK Germany	3
RTECS-Nr.	SL1050000
Hazard Note	Irritant
TSCA	Yes
HS Code	29222900

Gefahreninformationscode (GHS)

3-Dimethylaminophenol Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S22:Staub nicht einatmen.
Chemische Eigenschaften
Brown to Purple Solid
Verwenden
3-Dimethylaminophenol can be used as neostigmine bromide intermediate and dye intermediate.
Allgemeine Beschreibung
Needles (from ligroin) or a dark gray solid.
Air & Water Reaktionen
Sensitive to prolonged exposure to air. Insoluble in water.
Reaktivität anzeigen
An amine and phenol. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides. Phenols do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has Ka = 1.3 x 10^[-10]). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases. Such heating may initiate polymerization of the organic compound. Phenols are sulfonated very readily (for example, by concentrated sulfuric acid at room temperature). The reactions generate heat. Phenols are also nitrated very rapidly, even by dilute nitric acid.
Brandgefahr
Flash point data for 3-Dimethylaminophenol are not available. 3-Dimethylaminophenol is probably combustible.
Synthese
3-Dimethylaminophenol is used to synthesize dyes and pharmaceutical intermediates. The traditional production process of this compound is to react m-aminophenol with dimethyl sulfate and then purify it in multiple steps to obtain 3-(N, N-dimethylamino)phenol. The production process requires highly toxic dimethyl sulfate, which has high requirements for safe production and raw material transportation and is not conducive to industrial production. Another method is to first react resorcinol with dimethylamine aqueous solution to obtain 3-(N, N-dimethylamino)phenol crude product, then add industrial liquid alkali to the crude product, and then add toluene to extract by-products. After neutralising the aqueous phase, wash to remove the unreacted resorcinol and then distil under reduced pressure to obtain 3-(N, N-dimethylamino)phenol. The operation is simple, the product purity is high, the raw materials are easy to store and transport, and it is easy to industrialize and produce safely.

3-Dimethylaminophenol Upstream-Materialien And Downstream Produkte

3-Dimethylaminophenol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

99-07-0, 3-Dimethylaminophenol Verwandte Suche:

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