Now, you are looking at "Aluminium Sulphate" for water treatment.
 
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CHEMICALS LIST
  Coagulants
Polyaluminium Chloride (PAC)
Aluminium Chlorohydrate (ACH)
Aluminium Sulphate (Alum)
Ferric Chloride
Ferrous Sulphate
  Flocculants
Anionic Polymer
Cationic Polymer
Nonionic Polymer
  Basic Chemicals
Calcium Oxide (Lime)
Sodium Hydroxide
Sodium Hypochlorite
Hydrochloric acid
Sulfuric acid
Nitric Acid
Other chemicals, please contact us.
 
 
COAGULANT
Aluminium Sulphate (Alum )

Aluminium sulfate is used in water purification and as a mordant in dyeing and printing textiles. In water purification, it causes impurities to coagulate which are removed as the particulate settles to the bottom of the container or more easily filtered. This process is called coagulion or flocculation.

When dissolved in a large amount of neutral or slightly-alkaline water, aluminium sulfate produces a gelatinous precipitate of aluminium hydroxide, Al(OH)3. In dyeing and printing cloth, the gelatinous precipitate helps the dye adhere to the clothing fibers by rendering the pigment insoluble.

Aluminium sulfate is sometimes used to reduce the pH of garden soil, as it hydrolyzes to form the aluminium hydroxide precipitate and a dilute sulfuric acid solution. An example of what changing the pH level of soil can do to plants is visible when looking at the Hydrangea macrophylla. The gardener can add aluminium sulfate to the soil to reduce the pH level which in turn will result in the flowers of the Hydrangea turning a different color.

Aluminium sulfate is the active ingredient of some antiperspirants; however, beginning in 2005 the US Food and Drug Administration no longer recognized it as a wetness reducer.

Aluminium sulfate is usually found in bakng powder, where there is controversy over its use due to concern regarding the safety of adding aluminium to the diet.

In construction industry it is used as waterproofing agent and accelerator in concrete. Another use is a foaming agent in fire fighting foam.

It is also used in styptic pencils, and pain relief from stings and bites.

It can also be very effective as a molluscicide, killing spanish slugs.

     
   
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