Chem.
a white, crystalline, water-soluble solid, (NH 4 ) 2 S 2 O 3 , used chiefly in the manufacture of cleaning compounds for alloys having a tin or lead base.
Chem.
a white, crystalline, water-soluble solid, (NH 4 ) 2 S 2 O 3 , used chiefly in the manufacture of cleaning compounds for alloys having a tin or lead base.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012