2,4,6-Trimethylanilin Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R21/22:Gesundheitssch?dlich bei Berührung mit der Haut und beim Verschlucken.
R26:Sehr giftig beim Einatmen.
R36/38:Reizt die Augen und die Haut.
R33:Gefahr kumulativer Wirkungen.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
S-S?tze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
Chemische Eigenschaften
clear yellow to brown liquid. Insoluble in water, soluble in organic solvents such as ethanol and ether.
Verwenden
2,4,6-Trimethylaniline is useful for the preparation of Grubbs' catalyst. It is used as a precursor to dyes. It undergoes condensation reaction with glyoxal to prepare glyoxal-bis(mesitylimine). It is also involved in the preparation of 1,3-diketimines ligands by condensation with 1,3-diketones. Further, it is used for the production of Acid Blue 129 dye, which is useful in histochemistry studies. In addition to this, it serves as a building block to various bulky ligands.
synthetische
2,4,6-Trimethylaniline is prepared by selective mononitration of mesitylene, avoiding oxidation of the methyl groups.
Mix sulfuric acid and nitric acid into mixed acid, nitrify with mesitylene at atmospheric pressure below 10°C for 4 hours, stand for stratification, and let off the waste acid. The obtained 2,4,6-trimethylnitrobenzene, iron powder, hydrochloric acid and water were prepared in a ratio of 1:3.74:0.9:2.22 (mol ratio) for reduction reaction at 100-105°C for 8h. Crude 2,4,6-Trimethylaniline was then distilled off from the reduced material and purified by distillation.
Allgemeine Beschreibung
2,4,6-Trimethylaniline is a clear liquid. easily turns light brown when exposed to air and light. It is an intermediate for dyes, organic pigments and pesticides.
Reaktivit?t anzeigen
2,4,6-Trimethylaniline neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Health Hazard
2,4,6-Trimethylaniline is moderately toxic orally. It is also considered highly toxic by unspecified routes. It is a skin and eye irritant. Suspect occupational carcinogen. (Non-Specific -- Aromatic Amines) The danger of acute poisoning is represented by methemoglobinemia leading to adverse effects on the red cells. A number of the amines may act as skin sensitizers.
Brandgefahr
When heated to decomposition, 2,4,6-Trimethylaniline emits toxic fumes of nitrogen oxides. Avoid decomposing heat.
Sicherheitsprofil
Poison by inhalation.
Moderately toxic by ingestion. A skin and
severe eye irritant. Questionable carcinogen
with experimental carcinogenic data.
Mutation data reported. When heated to
decomposition it emits toxic fumes of NOx.
m?gliche Exposition
Used on small scale in organic
synthesis.
Versand/Shipping
UN2810 Toxic liquids, organic, n.o.s., Hazard
Class: 6.1; Labels: 6.1-Poisonous materials, Technical
Name Required.
2,4,6-Trimethylanilin Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Natrium-1-amino-9,10-dihydro-9,10-dioxo-4-(2,4,6-trimethylanilino)anthracen-2-sulfonat
CAFENSTROLE
Solvent Blue 104
Tracid Light Yellow G
Natrium-3,3'-(9,10-dioxoanthracen-1,4-diyldiimino)bis(2,4,6-trimethylbenzolsulfonat)
(E)-3-(4-amino-3,5-dimethylphenyl)acrylonitrile
Naphthalin-1,4-dicarbonitril
3-Bromo-2,4,6-trimethylaniline
2-Iodmesitylen
1,3-BIS(2,4,6-TRIMETHYLPHENYL)-IMIDAZOLIDINIUM-CHLORIDE
Acid Violet 48
Natrium-1-amino-9,10-dihydro-9,10-dioxo-4-(2,4,6-trimethylanilino)anthracen-2-sulfonat
Solvent Blue 104
Acid Blue 129:1
Acid Violet 126
Natrium-3,3'-(9,10-dioxoanthracen-1,4-diyldiimino)bis(2,4,6-trimethylbenzolsulfonat)
Grubbs catalyst 2nd generation
