action of heat on sulphur

Action of Heat on Sulphur - When heated, sulphur undergoes a series of characteristic changes. Sulphur can melt at two different temperatures. a) If heated rapidly, it melts at 112.8 o C. b) But if heated slowly it will..

Sulphur can melt at two different temperatures. a) If heated rapidly, it melts at 112.8 o C. b) But if heated slowly it will melt only at 118.6 o ..

On heating boric acid decomposes to form metaboric acid at 375 K, tetraboric acid at 435 K and boron trioxide at red heat...

When heated to 150C, magnesium sulphate heptahydrate changes to monohydrate, MgSO 4 .H 2 O, which at 200C gives anhydrous magnesium sulphate. On further heating, it is decomposed forming the oxide...

During initial heating of calcium sulphate dihydrate, the crystal structure changes. On further heating at 390 K, it loses water and forms CaSO 4 .5H 2 O or (CaSO 4 ) 2 .H 2 O. This is known at Plaster of Paris. On heating above 437 K, it becomes anhydrous CaSO 4 and..

When heated to above 500 o C hydrogen chloride gas dissociates into hydrogen and chlorine..

It is interesting to note that when metallic nitrates and chlorides are heated with concentrated sulphuric acid, respective acids are formed i.e. nitric acid and hydrochloric acid. This shows less volatile nature of sulphuric aci..

Dry sulphur dioxide does not have any bleaching action. However, if the gas is moist, or if the object to be bleached is moist, then bleaching takes place. Usually only delicate articles such as coloured flowers, silk, wool etc., are bleached by sulphur dioxide. The bl..

Dry sulphur dioxide does not have any bleaching action. However, if the gas is moist, or if the object to be bleached is moist, then bleaching takes place. Usually only delicate articles such as coloured flowers, silk, wool etc., are bleached by sulphur dioxid..

When SO 2 gas is passed into the aqueous solution of sodium carbonate, sodium sulphate or bisulphate is produced. ..