Oxalic acid ndi organic acid yokhala ndi mankhwala a H₂C₂O₄. Amagwiritsidwa ntchito makamaka poyeretsa, kuchotsa dzimbiri, kukonza mafakitale, kusanthula mankhwala, malamulo akukula kwa zomera ndi zina. Kukhalapo kwa acidity yake yolimba komanso kuchepa kwabwino kumapangitsa kuti izichita mbali yofunika ...
Urea-formaldehyde resin (UF resin) ndi zomatira za polima za thermosetting. Amagwiritsidwa ntchito m'magawo ambiri chifukwa cha zopangira zake zotsika mtengo, mphamvu zomangirira kwambiri, zabwino zopanda mtundu komanso zowonekera. Zotsatirazi ndi gulu la ntchito zake zazikulu: 1. Artificial board an...