Aluminium sulfate is sometimes referred to as a type of alum. Alums are double sulfate salts, with the formula AM(SO 4) 2Â·12H 2O, where A is a monovalent cation such as potassium or ammonium and M is a trivalent metal ion such as aluminium.luminium sulfate may be made by adding aluminium hydroxide, Al(OH) 3, to sulfuric acid, H 2 SO 4 :
Professors at Yale University make on average $264,496 USD per year. This is $193,103 more than the average university professor's annual salary ($71,393 USD). Salary Over Time
Undergraduate Tuition. Tuition for Yale University is $47,600 for the 2015/2016 academic year. This is 83% more expensive than the national average private non-profit four year college tuition of $25,965. Yale University is one of the 100 most expensive colleges in the America, coming in 55th on our Expensive 100 Ranking.