axit oxalic, C2H2O4.2H2O - 0 đ
axit citric, C6H8O7 - 0 đ
Kali Natri Tartrate, KNaC4H4O6.4H2O - 0 đ
Đồng sulphat, CuSO4, copper sulphate - 0 đ
Triethanolamine, TEA - 0 đ
Polyvinyl alcohol, PVA 22 – 99 - 0 đ
urotropine, hexamine, C6H12N4 - 0 đ
asen trioxit, As2O3 - 0 đ
Borax, hàn the, Na2B4O7 - 0 đ
Kali Cacbonat, K2CO3 - 0 đ