3-Nitro-p-toluylsure

Bezeichnung:3-Nitro-p-toluylsure

CAS-Nr96-98-0

Englisch Name:4-Methyl-3-nitrobenzoic acid

CBNumberCB7218697

SummenformelC8H7NO4

Molgewicht181.15

MOL-Datei96-98-0.mol

Synonyma

3-Nitro-p-toluylsure

3-Nitro-p-toluylsure physikalisch-chemischer Eigenschaften

Schmelzpunkt	187-190 °C (lit.)
Siedepunkt	314.24°C (rough estimate)
Dichte	1.4283 (rough estimate)
Dampfdruck	0.001Pa at 20℃
Brechungsindex	1.5468 (estimate)
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	0.257g/l
pka	3.66±0.10(Predicted)
Aggregatzustand	Crystalline Powder
Farbe	White to light yellow
Wasserlöslichkeit	<0.1 g/100 mL at 22 ºC
BRN	1874411
LogP	1.65 at 23℃ and pH6.3-6.7
CAS Datenbank	96-98-0(CAS DataBase Reference)
EPA chemische Informationen	4-Methyl-3-nitrobenzoic acid (96-98-0)

Sicherheit

Kennzeichnung gefährlicher	Xn,Xi
R-Sätze:	36/37/38-20/21/22-22
S-Sätze:	36/37/39-26-22-36-24/25
WGK Germany	1
TSCA	Yes
HS Code	29163990

Gefahreninformationscode (GHS)

4-Methyl-3-nitrobenzoic acid 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:
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S22:Staub nicht einatmen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
white to light yellow crystal powder
Verwenden
4-Methyl-3-nitrobenzoic acid was used in the synthesis of one-dimensional (1D) lanthanide coordination complexes.
Allgemeine Beschreibung
Prismatic crystals or off-white powder.
Air & Water Reaktionen
Insoluble in water.
Reaktivität anzeigen
4-Methyl-3-nitrobenzoic acid is a nitrated carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry.
Brandgefahr
Information concerning the flash point of 4-Methyl-3-nitrobenzoic acid is not available. 4-Methyl-3-nitrobenzoic acid is probably combustible.
läuterung methode
Recrystallise the acid from EtOH. The S-benzylisothiuronium salt has m 167168o (EtOH). The acid chloride [10397-30-5] has m 20-21o, b 185o/36mm, and the methyl ester [7356-11-8] crystallises as pale yellow needles from MeOH with m 51o. [Beilstein 9 H 502, 9 II 334, 9 III 2359.]

4-Methyl-3-nitrobenzoic acid Upstream-Materialien And Downstream Produkte

3-Nitro-p-toluylsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

96-98-0, 4-Methyl-3-nitrobenzoic acid Verwandte Suche:

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