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.
When the Spanish arrived in Mexico, the Aztecs had not yet developed iron or bronze metals. Their tools were made from bone, stone, and obsidian. They also did not use beasts of burden or the wheel.However, despite their lack of these basic technologies, the Aztecs had a fairly developed society. They also had some writing and technology of their own.t was sacred to the Aztecs and was very important as it divided time equally among the various gods and kept the universe in balance. The calendar had 260 days. Each day was represented by a combination of 21 day signs and thirteen day signs. The other calendar was used to track time.