METHYLMERCURY(II) CHLORIDE Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R26/27/28:Sehr giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R33:Gefahr kumulativer Wirkungen.
R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S13:Von Nahrungsmitteln, Getränken und Futtermitteln fernhalten.
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S60:Dieses Produkt und sein Behälter sind als gefährlicher Abfall zu entsorgen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Chemische Eigenschaften
white crystals or powder
Verwenden
Methylmercury(II) chloride is used as a precursor for the preparation of methyl mercury acetate. It is used as a specific reagent (electron stain) for sulfhydryl groups in biological materials like protein as well as demonstration in electron microscopy.
Allgemeine Beschreibung
White microcrystals or crystals.
Air & Water Reaktionen
Aqueous solutions at a concentration of 0.25 mg / mL are stable for 3 weeks in the dark at room temperature. Aqueous 0.0001 M solutions show no degradation after 17.1 hours of midday sunlight. High intensity UV irradiation of solutions causes decomposition .
Reaktivität anzeigen
METHYLMERCURY(II) CHLORIDE may be sensitive to light.
Brandgefahr
Flash point data for METHYLMERCURY(II) CHLORIDE are not available; however, METHYLMERCURY(II) CHLORIDE is probably nonflammable.
Sicherheitsprofil
Poison by ingestion,
intramuscular, intravenous, and intraperitoneal routes. Questionable
carcinogen with experimental carcinogenic
and teratogenic data. Human mutation data
reported. Experimental reproductive effects.
When heated to decomposition it emits very
toxic fumes of Cland Hg. See also
MERCURY COMPOUNDS.
Carcinogenicity
A number of authors have reported carcinogenic effects in
rats and mice exposed orally to methylmercury. An association
between methylmercury exposure and renal adenocarcinoma
was shown in male mice, but no increase in tumor
incidence was detected in rats. These findings are supported
by reports on methylmercury-induced degeneration of DNA,
and inhibition of the formation of the mitotic spindle.
Intoxications with alkoxialkyl or aryl compounds are similar
to intoxications with inorganic mercury compounds, as
these organomercurials are relativelyunstable. Alkylmercury
compounds, such as methylmercury, result in a different
syndrome due to the stability of the mercury–methyl binding.
The earliest symptoms in adults are paresthesias in the
extremities and the face, particularly around the mouth.
Later on, disturbances occur inthe motor functions, resulting
in ataxia and dysphasia. The visual field is decreased, and,
in severe cases, may result in total blindness. These symptoms
were observed in large-scale poisonings caused by
methylmercury.
läuterung methode
Recrystallise it from absolute EtOH (20mL/g). at 206nm ( 1.37). [See EtHgCl above; Breitinger et al. J Organomet Chem 256 217 1983,max Slotta et al. J Prakt Chem 120 249 1929, Waugh et al. J Phys Chem 59 395 1955, Beilstein 16 IV 1729.]
METHYLMERCURY(II) CHLORIDE Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
