TD mr.soap..now mrs lak..mrs pa tah...hah!!!Mrs.DETERGEN....
              
           the main advantage of using detergens is that they are effective in hard water and acidic water.for our information....in hard water a detergen does not form insoluble precipitate
            during the reaction with hard water the following products are formed with calcium and magnesium ions
                (a)calcium alkyl sulphate          (b)calcium alkylbenzene sulphonate
                (c)magnesium alkyl sulphate    (d)magnesium alkylbenzene sulphonate

ALL the product above,are soluble in water.thus,hard water does not affect the cleansing action of detergen...a detergen is effective in acidic water.this is because the detergen molecules do not react with the hydrogen ions in acidic water.different type of detergen can be produced by altering their molecular structures

 same with mR.SoaP.....Mrs.Detergen also have a problems....the detergens used caused pollution in rivers.
..(a)these detergens contain branched chains of hydocarbons...(b)the bacteria in the sewage works could not break down these chains..(c)the detergens flowed into the rivers producing foam which pollute the rivers.this will also affect the oxygenation of river water and threaten aquatic animals and plants.
      
                                                            
                  these chains are easily broken down by bacteria.they are biodegradable.these biodegradable detergents do not cause pollution.

Older Post | Newer Post