canyon components logo

CHROMIUM POTASSIUM SULFATE (ALUM) Chemical compatibility with O-rings, rubbers, & plastics

Chromium potassium sulfate, also known as chrome alum, is a dark purple crystalline compound with the chemical formula KCr(SO4)2·12H2O. It is used in tanning leather, as a mordant in dyeing, and in various laboratory applications. Chromium potassium sulfate is relatively non-toxic but can cause skin and respiratory irritation upon exposure. Proper handling, storage, and the use of personal protective equipment (PPE) are essential to ensure safety.

Need CHROMIUM POTASSIUM SULFATE (ALUM) resistant plastics, O-rings, rubbers, and seals? Get in touch now!


Canyon Components strives to meet all customer service requests. If you need something that isn't listed below, feel free to contact a Canyon Components product and application consultant and let our knowledgeable staff help you design the perfect part for your needs.

Paint covered o-ring
MaterialPerformanceGet a quote
FFKM (CanRez™, Kalrez®, Chemraz®)Excellent: <15% SwellingGet a quote
FKM ETP (Viton® Extreme)Excellent: <15% SwellingGet a quote
FKM (Viton®)Excellent: <15% SwellingGet a quote
NBR (Buna-N, Nitrile)Acceptable: <15-25% SwellingGet a quote
HNBR (Hydrogenated Nitrile)--- Insufficient Testing DataGet a quote
EPDM (Ethylene Propylene)Acceptable: <15-25% SwellingGet a quote
Aflas® (TFE/P, FEPM)Acceptable: <15-25% SwellingGet a quote
Silicone (VMQ, PVMQ)--- Insufficient Testing DataGet a quote
Fluorosilicone (FVMQ)--- Insufficient Testing DataGet a quote
Polyurethane (PU, AU)--- Insufficient Testing DataGet a quote
Teflon® (PTFE)--- Insufficient Testing DataGet a quote
Neoprene (Chloroprene)--- Insufficient Testing DataGet a quote
SBR (Styrene-Butadiene)--- Insufficient Testing DataGet a quote
ACM (Acrylic Rubber)--- Insufficient Testing DataGet a quote
Butyl (IIR, Isobutylene Isoprene)--- Insufficient Testing DataGet a quote
Butadiene Rubber (BR)--- Insufficient Testing DataGet a quote
Isoprene Rubber (Polyisoprene)--- Insufficient Testing DataGet a quote
Natural Rubber (NR)--- Insufficient Testing DataGet a quote
Hypalon (CSPE)--- Insufficient Testing DataGet a quote
Metal Piston

Get a quote now!

Groove Design References

Learn More

Coatings, Packaging, & Other Services

Learn More

Custom Parts & Custom O-rings

Learn More