Can some one suggest chemical pigments that can be easily made from chemicals available in a chemistry lab for a project?I need the name of the pigment, reactants required and chemical equations of reactions involved.I need atleast 5 pigments
Typical pigments: carbon black (charcoal) titanium dioxide red iron oxide white lead cadmium red cadmium orange cadmium yellow
Some pigments easy to make in a school laboratory: 1) Calcium carbonate: Mix solutions of calcium chloride and sodium carbonate : CaCl2(aq) + Na2CO3(aq) → CaCO3(s) + 2NaCl(aq) filter off and dry the calcium carbonate 2) Barium carbonate Exactly as above , but start with barium chloride 3) Calcium sulphate Mix solutions of calcium chloride and sodium sulphate: CaCl2(aq) + Na2SO4(aq) → CaSO4(s) + 2NaCl 4) Barium sulphate Use barium chloride instead of calcium chloride . 5) Satin white is another interesting pigment: Mix solutions of aluminium sulphate and calcium hydroxide with strong stirring , You get a paste which is a mixture of aluminium hydroxide and calcium sulphate . There is no specific formula because what you get depends on how you mix. Do not try and dry this out to get a dry pigment - it does not work. There are 5 white pigments that you can easily make - but remember to wear proper protective clothing when working with all chemicals
