sulfurization

latin small letter a

U+0061

latin small letter f

U+0066

latin small letter i

U+0069

latin small letter l

U+006C

latin small letter n

U+006E

latin small letter o

U+006F

latin small letter r

U+0072

latin small letter s

U+0073

latin small letter t

U+0074

latin small letter u

U+0075

latin small letter z

U+007A