পটেছিয়াম ডাইক্ৰ’মেটপটেছিয়াম ফেৰিছায়েনাইড
পটেছিয়াম পাৰমেংগানেট (Assamese)
1. Potassium permanganate is an inorganic compound with the chemical formula KMnO4. It is a purplish-black crystalline salt, which dissolves in water as K+ and MnO−4 ions to give an intensely pink to purple... from wikipedia.org