If you would like to put pineapple in your jello, I have good news for you. You can actually combine the two and get a yummy dessert ... but you have to use canned pineapple to prepare it. Jello contains gelatin (a protein, which is a processed version of collagen.
It's a cobalt oxide-aluminum oxide. Very costly and extraordinary stable pigment of pure blue colour discovered by Thenard thÃ©nard in. 1802
The +2 state is more common. The ion Co 2+ (aq) is pink. Other compounds of cobalt(II), which include both anhydrous Co 2+ and complex ions, are commonly blue. If an aqueous solution contains both cobalt(II) and chloride ions, the blue ion CoCl 4 2- forms, in equilibrium with the pink Co 2+ (aq) ion.