三さん酸さん化か硫黄いおう

さ

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さ

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お

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Meanings

1

noun

sulfur trioxide (SO3)

Chemical compound name; used in scientific and industrial contexts.

three

酸acid, bitterness, sour

化change, take the form of, influence

硫sulphur

黄yellow

二に酸さん化か硫黄いおう
Sulfur dioxide (SO2), a related oxide of sulfur with different oxidation state and properties.
硫りゅう酸さん
Sulfuric acid (H2SO4), produced from sulfur trioxide and water.

Compound of 三 (three), 酸化 (oxidation), and 硫黄 (sulfur), literally 'trioxide of sulfur'.