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Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
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will ship after we return.
Price: $30.25
In Stock.
Ferrous sulfide, H2S generating
FeS
F.W. 87.91
Hazard Alert
Contact with acid liberates poisonous hydrogen sulfide gas; do not dispose of the product down a drain that might contain acid. Hydrogen sulfide gas is toxic and flammable.
This item can only be shipped to schools, museums and science centers
1-800-452-1261
Iron(II) Sulfide