potash alum वाक्य

उदाहरण वाक्य

1. Other chemical products included nitrous oxide and potash alum.
2. The leather becomes'tawed'by soaking in a warm potash alum and salts solution.
3. It occurs associated with pyrite, marcasite, halotrichite, pickeringite, epsomite, potash alum, melanterite and gypsum.
4. The leather becomes tawed by soaking in a warm potash alum and salts solution, between 20 and 30 �C . The process increases the leather's pliability, stretchability, softness, and quality.