You can get nice crystal if you dissolve Kalunite mineral in clean water and wait till complete evaporation of water. A less expensive way consist to dissolve aluminum sulphate in water and add potash sulphate. The proportion is 70/30 %.
I never do it before, but usually amount of metal in a substance can be determined using AAS (Atomic Absorption Spectroscopy)
Alum is the common name for aluminum potassium sulfate or aluminum sulfate.
No alum is a name for a general class of compounds and the name of a specific compound. As a specific compound it is the hydrated potassium aluminum sulfate (Potassium alum) with the formula KAl(SO4)2.12H2O
Potash alum is another name for potassium alum. Alum is a class of molecular compounds, and included in the class is potassium alum. So, they are not the same thing, but yet very similar in that potash alum is a member of the alum class.
Alum crystals are made of aluminum potassium sulfate, and are usually made by slowly dehydrating an aqueous solution of aluminum potassium sulfate. So, when you put water back onto a dried crystal, you will begin to dissolve it again.
Alum is commonly known as "alum." Chemically it refers specifically to potassium aluminum sulfate dodecahydrate, but also to a host of related compounds.Alum has been used as a "water clarifier" for many years.
Alum is the common name for aluminum potassium sulfate or aluminum sulfate.
aluminum potassium sulfate
Bauxite ore. The name "aluminum" comes from the compound "Alum", which is hydrated aluminum potassium sulfate. Alum is available as a white powder.
by adding acids in alum crystals
No alum is a name for a general class of compounds and the name of a specific compound. As a specific compound it is the hydrated potassium aluminum sulfate (Potassium alum) with the formula KAl(SO4)2.12H2O
Potash alum is another name for potassium alum. Alum is a class of molecular compounds, and included in the class is potassium alum. So, they are not the same thing, but yet very similar in that potash alum is a member of the alum class.
Alum crystals are made of aluminum potassium sulfate, and are usually made by slowly dehydrating an aqueous solution of aluminum potassium sulfate. So, when you put water back onto a dried crystal, you will begin to dissolve it again.
Dry alum refers to the hydrated potassium aluminum sulfate compound that is used to fix pigments on a surface. Its density is 0.752 kg/m3.
Alum is commonly known as "alum." Chemically it refers specifically to potassium aluminum sulfate dodecahydrate, but also to a host of related compounds.Alum has been used as a "water clarifier" for many years.
Potash alum is another word for the chemical powder of aluminum potassium sulfate. Also known simply as "alum" or potassium alum. "There have been many industrial applications of potassium aluminum sulfate. It is an important part of many products created by the pharmaceutical, cosmetic, and food industries because of its astringency property. It is also used in the manufacture of paper, dyes, glue, and explosives. Additionally, it helps in the water purification process, is used to speed up the hardening of concrete and plaster, and acts as a catalyst in various chemical reactions." Source: jrank.org (http://science.jrank.org/pages/5422/Potassium-Aluminum-Sulfate.html)
Alum refers to a specific chemical compound and a class of chemical compounds. The specific compound is the hydrated aluminum potassium sulfate with the formula KAl(SO4)2.12H2O.
The ancient Greeks and Romans used alum (aluminum sulfate with potassium) in medicine and in dying. De Morveau recognized the base in alum in 1761 and proposed it be called alumine, But Danish chemist and physicist Hans Christian Oersted discovered aluminum in 1825 in Denmark.