These crystals are called Green Vitriol, Vitriol of Mars, and Copperas.
Green Vitriol dissolved in water spontaneously lets fall a yellowish earthy sediment.
To extract the Vitriolic Acid from Copperas or Green Vitriol 170 5.
At first it was obtained by the distillation of green vitriol, but is now made by the oxidation of sulphurous anhydride, obtained by the combustion either of sulphur or of certain sulphides.
The salt, formed in this case, is the sulphate of iron, green vitriol, or copperas.
The former is the magnetic pyrites, and the latter, cubic pyrites, from both of which, green vitriol is obtained by decomposition.
It may be formed by exposing the protosulphate of iron, or green vitriol, in solution, to the atmosphere, and then adding an alkali.
In the same place he mentions Indicum carmenum, a kind of indigo which did not dye so much a violet colour as a black, that is to say with the addition of green vitriol.
On this account they distinguished with so much care misy, sory, chalcitis and melanteria, instead of which we use a substance contained in all these minerals, that is to say, green vitriol.
Castile soap is pure soda soap, and the blueish or red mottled appearance is produced by stirring in some sulphate of iron (green vitriol); when new it is of a blueish color, but gets red by exposure to the air.
Thus when phlogisticated alkali is poured into a solution of green vitriol, the acid of the vitriol unites with the alkali, while the phlogiston joining the calx of iron makes Prussian blue.
It is also decomposed by a solution of green vitriol, which by this means becomes black, and when exposed to the air, or heated, emits nitrous air, and recovers its former colour.
Nitrous air is likewise produced by volatile alkali passing over red hot manganese, or green vitriol, when they are yielding dephlogisticated air.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "green vitriol" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
