Question

which masking agent is used for masking the aluminium and iron​

Answer 1

Answer:

Cyanide 10 Cu, Co, Ni, Zn, Cd, Hg, Pt, Pd, Ag, Fe

Answer 2

Answer:

For the selective demasking of aluminium, we employed triethanolamine, which also reacts with iron. To avoid interference by iron, ascorbic acid was added before the addition of KCN, ensuring that iron and manganese (if present) are reduced and complex with cyanide.

Explanation:

Hope its true but I hv douth