Alum is a salt that in chemistry is a combination of an alkali metal, such as sodium, potassium, or ammonium and a trivalent metal, such as aluminum, iron, or chromium.
USDA allocates a share of the anticipated U.S. sugar market to sugar producers annually. This allotment basically determines the amount of sugar an individual company is allowed to sell that year. However, these allotments can be, and often are, adjusted based on harvest conditions.
Future of Ethanol. Thus, given its environmental benefits, sugar-based ethanol has the potential to be a global industry. But while Brazil exports 70% of its sugar production, 75% of its ethanol output is still sold at home.