Answer to Question #87621 in General Chemistry for Muhammad Syukur

Question

Explain potential contaminants that may leach from sample containers or sampling tools
made of: (a) glass, (b) PVC, (c) plastics, (d) stainless steel

Answer 1

Potential contaminants include:

a)Na⁺, K⁺, OH^-; Pb, Ba and B compounds.

b)HCl(at elevated temperatures),Ca, Pb, Cd(heat stabilizers), Phthalate plasticizers.

c)Monomers,heat stabilizers, UV stabilizers, plasticizers, processing aids, impact modifiers, thermal modifiers, fillers, flame retardants, biocides, blowing agents and smoke suppressors, and, optionally, pigments.

d.Fe, Cr, Ni, Mo, Co, Mn, Ti, Nb and their ions/compounds