Due to extreme weather, the Flinn Warehouse is not shipping today, 1/23/2026.
We expect to resume normal shipping on Monday, 1/26/2026.
We regret this inconvenience. For more information, please call us at 800-452-1261.
KOH
F.W. 56.11
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Hazard Alert
Skin contact causes severe blisters; strongly corrosive as a solid and as a solution; very harmful if swallowed; extremely dangerous to eyes. LD50 273 mg/kg. TLV-C 2 mg/m3.