Tuesday, September 18, 2007

Why do silver articles/utensils turn black?

Date: 18.09.2007

Moist silver is highly prone to attack by hydrogen sulphide or any other potential source of sulphide(S2-). Silver reacts with sulphide forming black silver sulphide, which is an insoluble salt of silver. Consequently silver utensils/articles turn black.

Hence, it is advisable to wipe off water immediately from silver articles/utensils post wash to prolong its attack by sulphide.

1 comment:

Unknown said...

Hi! ur blogspot is very good..Nice to see valuable info abt chem and tamil.Add more interesting facts in chem whenever u find time.bye.

Historia de Silapathikaram - Una Epopeya Famosa del Idioma Tamil

  Fecha: 27 de Julio 2022 Soy una mujer de India que es una hablante de Tamil, el idioma muy antiguo.  La mayoria de los hablantes de Tamil ...