Inorganic Acid: Explained Completely
by : Rahul Sharma
INORGANIC ACID:
Inorganic acid are included Sulphuric acid (H2SO4), Hydrochloric acid (HCl), Nitric acid (HNO3), Phosphoric acid (H3PO4), etc.
Sulphuric Acid:
Sulphuric Acid formula is H2SO4.The titration of sulphuric acid is carried out using sodium hydroxide in the presence of phenolphthalein as an indicator. The end point is reached when a faint pink color is persistent.
Hydrochloric Acid:
Hydrochloric acid formula is HCI. The concentration of hydrochloric acid can be determined using a hydrometer, in a very similar manner to the determination of sulphuric acid concentration. Hydrochloric acid is a volatile acid at high concentration.
Nitric Acid:
Nitric acid formula is HNO3. Most commercially available nitric acid has a concentration of 68% in water. When the solution contains more than 86% HNO3, it is referred to as fuming nitric acid. Depending on the amount of nitrogen dioxide present, fuming nitric acid is further characterized as red fuming nitric acid at concentrations above 86%, or white fuming nitric acid at concentrations above 95%.
Phosphoric Acid:
Phosphoric acid formula is H3PO4. The concentration of phosphoric acid can be determined in a similar manner to that discussed for H2SO4, HCl and HNO3. Phosphoric acid, also known as orthophosphoric acid or phosphoric(V) acid, is a weak acid with the chemical formula H3PO4. It is normally encountered as a colorless syrup of 85% concentration in water. The pure compound is a colorless solid.
