Alum is a chemical compound of aluminium and sulphur found in nature and has been used in a large variety of ways since ancient times.
Ref: 120943/2006-09-26

Alum refers to astringent crystalline double sulfate of an alkali. K2SO4AL2 (SO4)3 24H2O. Used in the processing of pickles and as a flocking agent. Excess aluminum in the environment can be hazardous.
Ref: 86393/2006-09-14

Other Database Pages Exist for this Phrase:
Secondary aluminum (Secondary aluminum refers to an aluminum-bearing ...)
Aluminum (Aluminum makes reference to the most common ...)
Aluminum spaceframe (Aluminum spaceframe refers to an integrated ...)

You have no rights to post comments

Related Articles

Aluminum alloy ■■■■■■■
Aluminum alloy is about a base metal with other metal or non-metal constituents melted together into . . . Read More
Chlorofluorocarbons ■■■■■■■
Chlorofluorocarbons (CFCs) are a class of man-made chemicals known by such tradenames as "Freon," "Genetron," . . . Read More
Sodium ■■■■■■■
Sodium is a chemical element with the symbol Na (from Latin: natrium) and atomic number 11. It is a soft, . . . Read More
Aluminum spaceframe ■■■■■■
Aluminum spaceframe refers to an integrated structure of aluminum castings and extruded parts that forms . . . Read More
Aluminium ■■■■■■
Aluminium (or aluminum ) is a chemical element with the symbol Al and an atomic number of 13. It is a . . . Read More
Pyrogallol ■■■■■■
Pyrogallol, in the industrial context, refers to an organic compound with the formula C6H3(OH)3. This . . . Read More
Plastic ■■■■■
Deutsch: Kunststoff / Español: Plástico / Português: Plástico / Français: Plastique / Italiano: . . . Read More
Oxide ■■■■■
An oxide is a chemical compound that contains at least one oxygen atom and one other element in its chemical . . . Read More
Alloy ■■■■■
Alloy refers to a substance with metallic properties, composed of two or more chemical elements of which . . . Read More
Aminopterinum ■■■■■
Aminopterinum: Aminopterin is a chemical compound primarily known for its use in medical and biochemical . . . Read More