m-Cresol Purple (5gr)

Ammonium Sulfide (500ml 20%) Ammonium hydrosulfide is the chemical compound with the formula [NH4]SH. Composition Ammonium Sulfide is the salt derived from the ammonium cation and the hydrosulfide anion. The salt

Potassium Thiocyanate (250gr) Potassium Τhiocyanate is the chemical compound with the molecular formula KSCN. It is an important salt of the thiocyanate anion, one of