1. Zere kọntaktị na ikuku. Zere kọntaktị na acid chlorides, oxygen, na acids.
2. Mmiri na-enweghị agba na nke dị mfe, ọ ga-atụgharị agba aja aja ma ọ bụ ọbara ọbara miri emi mgbe ekpughere ya na ìhè anyanwụ ma ọ bụ ikuku. Enwere uto ilu. Ọ na-esighi ike na mmiri, mana ọ naghị eguzosi ike n'ihe na mmiri, na-agbaze ngwa ngwa na ethanol, ether, benzene na chloroform, na nke na-adịghị edozi na mmanụ ala hydrocarbons. Na-adịghị edozi na alkanes.
3. Chemical Njirimara: Furfuryl mmanya nwere ike ibelata silver nitrate amonia ngwọta mgbe kpụ ọkụ n'ọnụ. Ọ kwụsiri ike na alkali, mana ọ dị mfe resinize n'okpuru omume nke acid ma ọ bụ oxygen na ikuku. Karịsịa, ọ na-enwe mmetụta dị ukwuu na acid siri ike ma na-ejikarị ọkụ mgbe mmeghachi omume siri ike. Ọ na-apụta na-acha anụnụ anụnụ mgbe ejiri ngwakọta diphenylamine, acetic acid na sulfuric acid gbanyere mkpọrọgwụ ọkụ (mmeghachi omume diphenylamine).
4. Dị na akwụkwọ ụtaba a gwọchara flue, akwụkwọ ụtaba burley, akwụkwọ ụtaba oriental na anwụrụ ọkụ.
