硫化

vulcanization (curing rubber using sulfur and heat)

liú = li + ou2

sulfur (chemistry)

hua̅ = hu + a1

variant of 花[hua1]

huà = hu + a4

to make into / to change into / -ization / to ... -ize / to transform / abbr. for 化學|化学[hua4 xue2]

化 = 亻 + 匕 : Helga Horse and Rosa Luxemburg conduct an experiment in the ashram's bathroom. Using a transformer, they melt a ladle.

hydrogen sulfide H2S / sulfureted hydrogen

carbon disulfide

硫化 currently does not appear in any sentence.