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.
परिभाषा
a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum पर्याय: alum, potassium alum,
मोबाइल