1,5-Dinitronaphthalin Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R41:Gefahr ernster Augensch?den.
R43:Sensibilisierung durch Hautkontakt m?glich.
R52/53:Sch?dlich für Wasserorganismen, kann in Gew?ssern l?ngerfristig sch?dliche Wirkungen haben.
R68:Irreversibler Schaden m?glich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-S?tze 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.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S29:Nicht in die Kanalisation gelangen lassen.

Chemische Eigenschaften

Yellow to yellow-green needles or fluffy powder

Verwenden

1,5-Dinitronaphthalene is an intermediate in the production of naphthazarin (5,8- dihydroxy-1,4-naphthoquinone) and 1,5- naphthalenediamine, which is mainly converted to naphthalene 1,5-diisocyanate. As a sensitizing agent for ammonium nitrate explosives the use of mixed isomers is adequate.

Vorbereitung Methode

Naphthalene is added slowly to mixed acid (22/58/20) at 40 ℃, and the temperature is raised to 80 ℃ over 4 h to give a mixture of 1,5- and 1,8-dinitronaphthalenes. The isomers are separated by fractional crystallization (e.g., from ethylene dichloride) or, preferably, by solvent extraction. The 1,5-isomer can be extracted with toluene, leaving 99 % pure 1,8- dinitronaphthalene. After evaporation of the toluene, the residue is extracted with a strongly polar solvent (e.g., sulfolane) to leave 99 % pure 1,5-isomer.

Definition

ChEBI: 1,5-dinitronaphthalene is a dinitronaphthalene carrying nitro groups at positions 1 and 5. It has a role as a genotoxin.

Allgemeine Beschreibung

Yellowish white needles or light yellow fluffy solid.

Air & Water Reaktionen

Insoluble in water.

Reaktivit?t anzeigen

1,5-Dinitronaphthalene is incompatible with strong oxidizers and strong bases. Mixtures with sulfur or sulfuric acid may explode if heated to 248° F .

Brandgefahr

Flash point data for 1,5-Dinitronaphthalene are not available; however, 1,5-Dinitronaphthalene is probably combustible.

Sicherheitsprofil

A suspected carcinogen. Mutation data reported. Mxtures with sulfur or sulfuric acid (used in commercial reactions) may explode if heated to 120℃. Initiation temperature depends on the quality of the dinitronaphthalene. When heated to decomposition it emits toxic fumes of NOx. See also NITRO COMPOUNDS of AROMATICHYDROCARBONS

1,5-Dinitronaphthalin Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte

605-71-0(1,5-Dinitronaphthalin)Verwandte Suche:

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• 1,5-dinitro-naphthalen
• Naphthalene,1,5-dinitro-
• 1,5-DINITRONAPHTHALENE
• LABOTEST-BB LT00436936
• 1,5-Dinitroaphthalene
• 1,5-Dinitronaphthalene98%
• 1,5-Dinitronaphthalene,tech.90%
• 1,5-DINITRO NAPHTALENE
• 1,5-Dinitronaphthalene, tech. 90%
• 1,5-Dinitronaphthalene, 97+%
• 1,5-Dinitronaphthalene, 98% 100GR
• 1.5-Dinitronaphthalene 10
• 1,5-Dinitronaphthalene >=97.0% (HPLC)
• 1,5-Dinitrophthalene
• 1,5-Dinitronaphthalene 602-38-0
• 605-71-0
• C10H6NO22
• Nitro Compounds
• Organic Building Blocks
• Nitrogen Compounds
• Building Blocks
• Building Blocks
• Chemical Synthesis
• Nitro Compounds
• Nitrogen Compounds
• Organic Building Blocks
• Nitro Compounds
• Nitrogen Compounds
• Organic Building Blocks
• Intermediates of Dyes and Pigments
• Naphthalene derivatives