Natriumselenat Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R23/25:Giftig beim Einatmen und Verschlucken.
R33:Gefahr kumulativer Wirkungen.
R50/53:Sehr giftig für Wasserorganismen, kann in Gew?ssern l?ngerfristig sch?dliche Wirkungen haben.
R28:Sehr giftig beim Verschlucken.
R23:Giftig beim Einatmen.
S-S?tze Betriebsanweisung:
S20/21:Bei der Arbeit nicht essen, trinken,rauchen.
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
S60:Dieses Produkt und sein Beh?lter sind als gef?hrlicher Abfall zu entsorgen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Chemische Eigenschaften
White crystalline powder
Verwenden
Sodium selenate is used in glass industry, and produces red hue in glass. It acts as a decoloring agent in glass production. Combined with ferrous oxides, it produces colorless glass. Appropriate preparation of sodium selenate is used in multivitamins.
Definition
ChEBI: An inorganic sodium salt having selenate as the counterion.
Allgemeine Beschreibung
Colorless rhombic crystals. Used as an insecticide in some horticultural applications.
Air & Water Reaktionen
Water soluble.
Reaktivit?t anzeigen
Sodium selenate has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. Light sensitive
Hazard
Toxic by ingestion.
Health Hazard
Causes damage to liver and kidneys. Resembles arsenic in its effects.
Brandgefahr
Fire may produce irritating or poisonous gas. Emits toxic selenium and sodium oxide fumes when heated to decomposition. Avoid decomposing heat.
Sicherheitsprofil
Poison by ingestion,
intravenous, subcutaneous, and
intraperitoneal routes. Questionablecarcinogen with experimental carcinogenic
and teratogenic data. Human systemic
effects by ingestion: EKG changes,
hypermotility, diarrhea, and liver
impairment. Experimental reproductive
effects. Effects sdar to those of arsenic.
Mutation data reported. A pesticide. When
heated to decomposition it emits toxic
fumes of Se and NanO. See also
SELENIUM COMPOUNDS and
ARSENIC COMPOUNDS.
l?uterung methode
Crystallise sodium selenate from hot water. [Fehér in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 433 1963].
Natriumselenat Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
