I had Titanium Dioxide powder & I need a specific answer for both points:-
If you are professional and "need a specific answer for both points," you should google first.
https://www.researchgate.net/post/In-which-solvent-can-TiO2-can-be-dissolved-easily
Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.
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