PVP (Polyvinyl pyrrolidone,Povidone) Series:
K15 K30 K60 K90 PVPP PVP-I
NVP PVP- VA64 Alpha-pyrrolidone
Thiocyanate salts:
Ammonium thiocyanate Sodium thiocyanate
Potassium thiocyanate Calcium thiocyanate
Guanidine thiocyanate Methylene bithiocyanate