Cobaltdifluorid Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R25:Giftig beim Verschlucken.
R34:Verursacht Verätzungen.
S-Sätze 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.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Chemische Eigenschaften
Rose-red crystals or powder. Soluble in cold
water and hydrofluoric acid. Decomposes in hot
water. Ammine complexes can be prepared from
the hydrate.
Physikalische Eigenschaften
Red tetragonal crystal; density 4.46 g/cm
3; melts at 1,127°C; vaporizes around 1,400°C; sparingly soluble in water; soluble in warm mineral acids; decomposes in boiling water. Tetrahydrate is red orthogonal crystal; density 2.22 g/cm
3; decomposes on heating; soluble in water; di- and trihydrates are soluble in water.
Verwenden
Cobalt(II) fluoride can be used as a catalyst to alloy metals. It is also used for optical deposition, of which it tremendously improves optical quality. The compound may be used in dental care.
Allgemeine Beschreibung
Violet to red solid. Sinks and mixes slowly with water.
Reaktivität anzeigen
Cobalt(II) fluoride is a toxic, light brown crystalline material, when exposed to water Cobalt(II) fluoride forms highly corrosive hydrofluoric acid. When heated to decomposition Cobalt(II) fluoride emits toxic fumes of metallic cobalt and fluorides [Lewis, 3rd ed., 1993, p. 344].
Hazard
Highly toxic.
Health Hazard
INHALATION: Inhalation of dust may cause pulmonary symptoms. EYES: Irritation. SKIN: Skin rashes, dermatitis. INGESTION: Nausea and vomiting caused by local irritation.
LD50 oral (rat): 150 mg/kg
Sicherheitsprofil
Poison by ingestion.
When heated to decomposition it emits
toxic fumes of Co and F-.
Cobaltdifluorid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
