From Wikipedia, the free encyclopedia. Ammonium aluminium sulfate, also known as ammonium alum or just alum, is a white crystalline double sulfate usually encountered as the dodecahydrate, formula (NH 4)Al(SO 4) 2 Â·12H 2 O. It is used in small amounts in a variety of niche applications.The dodecahydrate occurs naturally as the rare mineral tschermigite.rom Wikipedia, the free encyclopedia. Ammonium aluminium sulfate, also known as ammonium alum or just alum, is a white crystalline double sulfate usually encountered as the dodecahydrate, formula (NH 4)Al(SO 4) 2 Â·12H 2 O. It is used in small amounts in a variety of niche applications.
A basic bench press bench alone will cost from 100$ and if you want powerlifting style bench then it may cost you even 700-800$. This cost does not include the cost of benching rod or weights. A basic bench press bench alone will cost from 100$ and if you want powerlifting style bench then it may cost you even 700-800$.
How much does a bike tune-up cost? On average, a standard bike tune-up can cost $30 to $80. This price will depend on the professional you choose, where you live and whatâs included in the tune-up. A simple $30 to $50 job will include a quick clean and adjustment, while the costs can be much higher if you were to add more services to the job.