Caustically impregnated carbons using sodium hydroxide or potassium hydroxide were introduced in the late 1970’s to improve activated carbon’s hydrogen sulfide removal performance. While standard carbons have a generally poor H2S removal capacity, the addition of caustic soda produced an activated carbon with a greatly enhanced H2S capacity. With caustically impregnated carbons, the H2S molecule is first physically adsorbed and then converted to sulfur through a chemical reaction with the caustic, hence the term “chemisorption”. Activated carbon has much greater capacity for sulfur than for H2S and as a result, caustically impregnated carbon’s H2S capacity was usually on the order of five to seven times greater than standard carbon.
This enhanced performance did not come without a price, however. The impregnated carbon sacrifices capacity for all compounds other than H2S, and has a lower ignition temperature than standard carbon, which greatly increases the chances of experiencing a carbon bed fire.

A,B,C’s of Odor Control

GC-IPH  

GC-IPH is available in 55 lb. vinyl bags, 250lb Drums, 1000LB super sacks

Other packaging is available upon request.

GC-IPH is a bituminous coal-based activated carbon that is specially impregnated for the desulphurization of gases and the removal of all acidic contaminants such as hydrogen sulfide, hydrogen chloride, and mercaptans.

• MSDS
• Use and Care of Activated Carbon

*Standard packaging is in 55 lb. vinyl bags.

Other packaging is available upon request.