Silver selenite is an inorganic compound of formula Ag₂SeO₃.

Production

Silver selenite is formed during the recovery of selenium from

copper Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkis ...

anode slime Electrowinning, also called electroextraction, is the electrodeposition of metals from their ores that have been put in solution via a process commonly referred to as leaching. Electrorefining uses a similar process to remove impurities from a ...

s when they are subjected to oxidative roasting, causing some

silver selenide Silver selenide (Ag2Se) is the reaction product formed when selenium toning analog silver gelatine photo papers in photographic print toning. The selenium toner contains sodium selenite (Na2SeO3) as one of its active ingredients, which is the sour ...

to be converted to the selenite. It can also be prepared by a precipitation reaction between

silver nitrate Silver nitrate is an inorganic compound with chemical formula . It is a versatile precursor to many other silver compounds, such as those used in photography. It is far less sensitive to light than the halides. It was once called ''lunar causti ...

and

sodium selenite Sodium selenite is the inorganic compound with the formula Na2SeO3. This salt is a colourless solid. The pentahydrate Na2SeO3(H2O)5 is the most common water-soluble selenium compound. Synthesis and fundamental reactions Sodium selenite usually i ...

: Another method is the reaction between selenium and silver nitrate: :3 Se + 6 AgNO₃ + 3 H₂O → 2 Ag₂Se + Ag₂SeO₃ + 6 HNO₃

References

External links

External MSDS
Selenites Silver compounds {{inorganic-compound-stub