1 It is aluminum potassium sulfate. 2  This is the type of alum that you find in the grocery store for pickling and in baking powder. 3  It is also used in leather tanning, as a flocculant in water purification, as an ingredient in aftershave and as a treatment to fireproof textiles. 4  It's chemical formula is KAl(SO 4) 2. It is also used in leather tanning, as a flocculant in water purification, as an ingredient in aftershave and as a treatment to fireproof textiles. 2  It's chemical formula is KAl(SO 4) 2. 3  Soda Alum. 4  Soda alum has the formula NaAl(SO 4) 2 Â·12H 2 O. It is used in baking powder and as an acidulent in food.
They were always creating new methods to increase their crop yields. Methods that they used included the building of terraces, irrigation and fertilization. Principle crops of the Aztecs were corn, beans, peppers, avocados, and tomatoes. Anthropology studies have also determined that the Aztecs also grew flowers for ceremony and decoration.
Food. 1  Agriculture of the nations came originally from other cultures. 2500 years ago- Mayans in Mexico planted corn, beans, squash, pumpkins and melons . 1000 years ago- Process moved north, tribes localized their crop. 1000 years ago- the Iroquois-language nations adapted the process of agriculture. Eastern Woodland Farmers grew the three sisters: Corn, Bean and Squash. Crop fields were cleared by slashing and burning the trees. The crop grew in circular fields, up to 12,000 acres in area, a few hundred feet away from the village. Women managed the fields; as symbols of fertility they brought good luck to the harvest.