axit oxalic, C2H2O4.2H2O - 0 đ
Triethanolamine, TEA - 0 đ
Polyvinyl alcohol, PVA 22 – 99 - 0 đ
urotropine, hexamine, C6H12N4 - 0 đ
Borax, hàn the, Na2B4O7 - 0 đ
Natri hydroxit, NaOH - 0 đ
Sodium metabisulfite, Na2S2O5 - 0 đ
Amoni hydroxit, amoniac lỏng, NH4OH - 0 đ
Formaldehyde; Formalin, HCHO - 0 đ