Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides

282510 Hydrazine and hydroxylamine and their inorganic salts 282520 Lithium oxide and hydroxide 282530 Vanadium oxides and hydroxides 282540 Nickel oxides and hydroxides 282550 Copper oxides and hydroxides 282560 Germanium oxides and zirconium dioxide 282570 Molybdenum oxides and hydroxides 282580 Antimony oxides 282590 Inorganic bases, metal oxides, hydroxides and peroxides; n.e.c. in heading no. 2825