Galliumtrichlorid Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R14:Reagiert heftig mit Wasser.
R34:Verursacht Ver?tzungen.
R51/53:Giftig für Wasserorganismen, kann in Gew?ssern l?ngerfristig sch?dliche Wirkungen haben.
R12:Hochentzündlich.
S-S?tze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S27:Beschmutzte, getr?nkte Kleidung sofort ausziehen.
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S33:Ma?nahmen gegen elektrostatische Aufladungen treffen.
S29:Nicht in die Kanalisation gelangen lassen.
S16:Von Zündquellen fernhalten - Nicht rauchen.
Chemische Eigenschaften
white crystals or powder
Verwenden
Gallium(III) chloride is a catalyst for a number of transformations including the ring opening and recyclization of epoxides and the trimerization of alkynes. It is used to detect the solar neutrions.
Vorbereitung Methode
The trichloride salt of trivalent gallium is prepared by the
action of either hydrogen chloride or chlorine on the metal.
Allgemeine Beschreibung
Colorless needles. Used as a raw material in the production of metallic gallium and in the processing of mono crystal semiconductor compounds.
Air & Water Reaktionen
Water soluble.
Reaktivit?t anzeigen
GALLIUM(III) CHLORIDE acts as a weak inorganic acid. Materials in this group are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.
Health Hazard
(Non-Specific -- Gallium Compounds) In view of the toxicity of gallium and its compounds, as shown by experiments, all persons involved in work with these substances should undergo periodic medical examinations, during which special attention should be paid to the condition of the liver, respiratory organs, and skin.
Brandgefahr
Emits toxic chloride fumes when heated to decomposition. Decomposes upon sufficient heating.
m?gliche Exposition
Used as a raw material in the produc tion of metallic gallium; and in the processing of mono crystal, semiconductor compounds.
Versand/Shipping
UN3260 Corrosive solid, acidic, inorganic, n.o.s.,
Hazard class: 8; Labels: 8-Corrosive material, Technical
Name Required. UN1759 Corrosive solids, n.o.s., Hazard
class: 8; Labels: 8-Corrosive material, Technical Name
required.
l?uterung methode
The pure compound can be obtained by redistillation in a stream of Cl2 or Cl2/N2 followed by vacuum sublimation or zone refining. It forms colourless needles which give gallium dichloride [Ga(GaCl4), m 172.4o] on heating. It dissolves in H2O with liberation of heat. It is soluble in Et2O and can be extracted from an HCl solution with Et2O. [Laubengayer & Schirmer J Am Chem Soc 62 1579 1940, D.nges in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 846 1963.]
Galliumtrichlorid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
