Lu'u-lu'u na soda shine muhimmin sinadari na inorganic kamar yadda ake amfani da su a masana'antu da yawa a duniya.Mafi girman buƙatun soda caustic ya fito ne daga masana'antar takarda inda ake amfani da ita a cikin ayyukan pulping da bleaching.Hakanan ana buƙatar su a cikin masana'antar aluminium yayin da caustic soda ke narkar da tama na bauxite, wanda shine albarkatun ƙasa a cikin samar da aluminum.Wani babban amfani da soda caustic shine sarrafa sinadarai kamar yadda caustic soda shine kayan abinci na asali don kewayon samfuran ƙasa da suka haɗa da kaushi, robobi, yadudduka, adhesives da sauransu.
Hakanan ana amfani da lu'ulu'u na soda a cikin samar da sabulu yayin da suke haifar da saponification na mai ko kitsen kayan lambu waɗanda ke da mahimmanci don kera sabulu.Suna da muhimmiyar rawa a masana'antar iskar gas inda ake amfani da sodium hydroxide don taimakawa wajen samarwa da sarrafa albarkatun man fetur kuma ana iya amfani da su a masana'antar masana'anta inda ake amfani da shi wajen sarrafa sinadarai na auduga.
Caustic soda kuma yana da ƙananan aikace-aikace.Ana iya amfani dashi don etching aluminum, nazarin sinadarai da kuma a cikin fenti.Yana da wani sashi a cikin kewayon kayayyakin cikin gida da suka haɗa da bututu da mai tsabtace magudanar ruwa, mai tsabtace tanda da cikin samfuran tsabtace gida.