Compared with Dimethyl Disulfide (DMDS), SulfrZol® 54 is the safer, cleaner, more efficient solution for continuous sulfiding.
|Physical Characteristics||DMDS*||SulfrZol® 54|
|Sulfur content, % by wt.||68||54|
|Thermal decomposition temperature (with catalyst)||392° F (200° C)||320° F (160° C)|
|Flash point (closed cup, ASTM D93)||61° F (16° C)||212° F (100° C)|
|Vapor pressure, psia @ 100° F (38° C)||0.5||0.15|
|Odor description, provided by vendors||Foul; decaying cabbage||Low odor similar to gas/oil|
|Decomposition by-products||Hydrogen sulfide, methane||Hydrogen sulfide, isobutane|
SulfrZol® 54 exhibits a superior environmental profile in contrast to DMDS. Not classified as toxic by the definitions provided under OSHA and DOT regulations, SulfrZol® 54 poses less of an inhalation risk. And unlike DMDS, it is classified by the U.S. Department of Transportation as nonhazardous for transportation.
With a flash point of 212°F (100°C), SulfrZol® 54 greatly reduces the risk of potential flash fires and eliminates the added expense and concern of storing flammable DMDS.
SulfrZol® 54 is low odor compared to DMDS, which has an extremely unpleasant scent similar to decaying cabbage. In contrast, the use of SulfrZol® 54 in continuous sulfiding results in a relatively mild diesel-like smell that can be virtually undetectable in an open-air environment.
Lubrizol, a Berkshire Hathaway company, is committed to supporting the global sulfur platform essential to renewable diesel refining. Our organization leverages substantial supply chain capabilities on multiple continents and has expanded its world-leading supply of polysulfide to meet your demands for SulfrZol® 54.
Contact us with all your catalyst sulfiding questions or needs: