Sulfur is a combustible chemical element, nonmetal. People used sulfur still for a long time when such science as chemistry, also was not trace. Alchemists considered that it is gray, as well as mercury, is supernatural substance that it is an obligatory component of any matter, marking elements of fire. Sulfur is generally extracted from natural deposits. But it can also be received also by means of other methods.
It is required to you
- Sodium thiosulphate, the distilled water, acetic essence, iron sulfide, hydrochloric and sulfuric acids, test tubes.
Instruction
1. Prepare thiosulphatesodium solution in the distilled water. Further take ordinary acetic essence, or any other carbonic acid for what it is not a pity also a thin stream, flow it to sodium thiosulphate solution, without forgetting to stir slowly at the same time mix.
2. On a bottom the yellow deposit will begin to drop out is a sulfur. Wait for the end of process, merge liquid and let's sulfur dry up.
3. Take a test tube, place in it a little sulfide of iron, and flow to it hydrochloric acid. Close a test tube a tight stopper with an exhaust tube. As a result of iron sulfide reaction with acid, hydrogen sulfide will be emitted.
4. In other test tube pour the concentrated sulfuric acid and place in it an exhaust tube. Hydrogen sulfide reacts with sulfuric acid, at the same time water, sulfur dioxide which in the form of gas comes to a surface and sulfur which will remain at the bottom of a test tube in the form of a deposit is formed. Later filter a deposit, wash it with water and let's dry.