« Acidithiobacillus ferrooxidans Acidithiobacillus thiooxidans. 0,6 1,2 . ( 1,6–2,15) 20–30 °, — , «» . ¬- ( ) , , – , , – 3 50 ».
“With the help of annealing the yellow pigment (at a temperature of approximately +800 ° C) we will get the same pigment, only red. When red blood salt (K3 [Fe (CN) 6]) is added to the bacterial solution, as a result of a qualitative reaction to iron ions, we received Prussian blue, which after drying will become a blue pigment, ”adds Ivan Kochetov.