discovery of ammonia gas

Discovery of Ammonia - Joseph Priestley first prepared ammonia in 1775 by heating Sal ammoniac (ammonium chloride) with slaked lime. Due to its basic nature, he called it alkaline air. In 1785, Comte Claude-Louis Berthollet determined the chemical composition of a..

Joseph Priestley first prepared ammonia in 1775 by heating Sal ammoniac (ammonium chloride) with slaked lime. Due to its basic nature, he called it alkaline air. In 1785, Comte Claude-Louis Berthollet determined the chemical composition of ammonia (Fig.6.1..

Gaseous ammonia is a pungent, irritant gas often causing effects like skin irritation, eye irritation and irritation to throat. It can cause number of allergies. ..

Ammonia was known to mankind since a long period, as it was produced in nature by putrefying and ammonifying bacteria. Chemical compound, NH 3 colorless gas that is about one half as dense as air at ordinary temperatures and pressures. It has a characteristic..

. He conducted the famous discharge tube experiment by passing electricity at high voltage through a gas at low pressure. A common discharge tube is a long glass tube having two metal plates, sealed at its two ends as electrodes. It has a side tube through which air can be pumped out by u..

Tests for Ammonia - Following are the tests for ammonia: 1. Ammonia gas has a characteristic pungent, irritating odour. 2. It changes the colour of: a) Moist red litmus paper blue. b) Turmeric paper brown. c) Methyl orange yellow. d) Colourless phenolphthalei..

The drying agent used for ammonia is quick lime. Other drying agents such as concentrated sulphuric acid or phosphorus (V) oxide or fused calcium chloride cannot dry an alkaline gas like ammonia. Sulphuric acid and phosphorus (V) oxide are both acidic. They react with..

It is a mixture of gaseous hydro-carbons. It is found usually along with petroleum deposits. Natural gas consists mainly of 85% methane, 10% of ethane and 3% of propane and butane. It may also contain nitrogen, oxygen, carbon di-oxide and hydrogen sulphide. Its great advantage i..

The credit of discovery of first noble gas argon goes to Henry Cavendish who performed number of experiments to study the composition of air. He found that air is approximately 79 per cent nitrogen and 21 per cent oxygen by volume. Traces of carbon dioxide and water vapor were ..

In 1896, the phenomenon of radioactivity was accidentally discovered by French scientist Henri Becquerel. He was performing experiments with uranium compounds. He accidentally placed a crystal of potassium uranyl sulphate over photographic plate wrapped with usual black paper. On developing the p..