Non-Crystalline Sulfur
This Sulfur is found in three allotropes.
(i.) Plastic Sulfur-
When boiling sulfur is poured into cold water, a soft material similar to rubber is obtained which is called plastic sulfur. It is a temporary alteration of sulfur which gradually converts to rhombic sulfur.
(ii.) Δ (Delta) Sulfur or Milk Sulfur-
It is a white colored non-crystalling sulfur. It is used in making medicines.
(iii.) Colloid Sulfur-
This form of colloidal sulfur is obtained by flowing H2S gas in dilute nitric acid.
H2S + 2HNO3(meager)----------> 2NO2 + 2H2O + S
This sulfur is soluble in carbon disulfide and its insoluble in water. On heating or after some time it is converted into rhombic sulfur. It is also used in making medicines.
Uses Of Sulfur
(i.) Sulfur is used extensively in the industrial production of sulfuric acid.
(ii.) It is used in making gunpowder and matchmak.
(iii.) Also useful as a pesticide.
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