SALT AND NEUTRALIZATION EVERYDAY LIFE

                                                                             SALT                                                                                                                                                                       

• A salt is a substance formed by the neutralisation of an acid by a base.                                                                                                                                                                                                                                                                                                                   
• Indigestion:  Our stomach contains hydrochloric acid. It helps us to digest food. More acid in the stomach will cause stomach upset or indigestion sometimes indigestion becomes painful. We take an antacid such as milk of magnesia to neutralise the excess acid.                                                   
• Ant bite:  When an ant bites, it injects acidic liquid ( Formic acid) into the skin. The effect of the acid can be neutralized by rubbing with moist baking soda or calamine solution (Zinc Carbonate).                                                                                                                                       
• Factory Wastes: The wastes of many factories contain acids. If they are allowed to flow into the water bodies, the acids will kill the fish and other organisms. The factory wastes are therefore neutralised by adding basic substances.                                                                            
• Soil treatment:  Excess use of chemical fertilizers, makes the soil acidic, When the soil is acidic, plants do not grow well. So it is treated with neutralising the basic nature of soil.                                                                                                   

NAME OF ACID	SALT FORMED	NAMES OF SALTS
HCL	Chloride	Sodium chloride, Copper Chloride, Ferric chloride
HNO3	Nitrate	Sodium nitrate, Copper nitrate, Ferric nitrate

NAME OF SALT	USE
FOR THE HUMAN BODY  Calcium phosphate,  calcium lactate,  Ferrous sulphate,  Sodium chloride etc	For the proper functioning of the human body.
FOR DOMESTIC PURPOSES 1.   Sodium chloride 2.   Sodium bicarbonate 3.   Hydrated potassium, aluminium sulphate	Used as a preservative. To add taste to our food  In baking and in effervescent drinks. In the purification of water.
FOR INDUSTRIAL PURPOSES 1.   Sodium carbonate 2.   copper sulphate 3.   potassium nitrate	For the manufacture of washing powder. As an insecticide. In the manufacture of gun powder.