Inorganic chemistry

What is the history of acids, bases & salts?

Properties of acids and bases

What do you know about the historical background of acids bases & salts?

History of acids bases & salts

History of acids bases and salts
History of acids bases and salts

History of acids bases & salts is listed here briefly. Acid, bases and salts are three distinct classes in which almost all the organic and inorganic compounds are classified.

Contributions of Jabir Bin Hayan

A famous Muslim chemist Jabir Bin Hayan prepared nitric acid (NHO3), hydrochloric acid (HCL) and sulphuric acid (H2SO4).

Contributions of Lavoisier

In 1787, Lavoisier named binary compounds of oxygen such as CO2 and SO2 as acids on dissolution in water gave acidic solutions.

Contributions of sir Humphrey Davy

Later on in 1815, sir Humphrey Davy discovered that there are certain acids which are without oxygen, e.g., HCL. Davy proved the presens of hydrogen as the main constituent of all acids. It was also disco that all water soluble metallic oxides turn red litmus blue, which is a characteristic of bases.

Derivation of word “acid”

The derivation of word “acid”is carried from the Latin word ‘Acidus’ meaning sour. The acetic acid was the first acid known to man at that time i.e., in the form of vinegar.strong acids and basesImportance of alkalies and acid for humans

All humans have a little concentration of hydrochloric acid in their stomach, which help to break down the food. Sometimes, the amount of stomach acid becomes too much, which cause ‘acidity’.Alkaline Medicines are used to treat  This uncomfortable feeling. The neutralization reaction takes place to neutralize  the acid, producing a harmless chemical called a salt.

Properties of acids

Properties of acids1.Taste

Acids have sour taste. For example unripe citrus fruits or lemon juice.

2. Effect on litmus paper

They turn blue litmus red.

3. Corrosive property

They are corrosive in concentrated form.

4. Electrical conductance

Their aqueous solutions conduct electric current.

Examples of acids

Examples of acidsNitric acid(HNO3), sulphuric acid (H2SO4), phosphoric acid(H3PO4).

Properties of bases

1. Taste

Bases have bitter taste and feel slippery. For example, soap is slippery to touch.

2. Effect on litmus paper

They turn red litmus blue.

3. Corrosive property

They are non-corrosive except concentrated form of NaOH and KOH.

4. Electrical conductance

Their aqueous solutions conduct electric current.

Example of bases

potassium hydroxide KOH,  calcium hydroxide Ca(OH)2, aluminum hydroxide Al(OH)3.

Informative ChartsAcids, bases and ph

Read:

Bases in chemistry?

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