GAC Chemical is the leading producer of reagent grade, food grade or FCC grade, NF grade and NSF approved water treatment grade ammonium sulfate (ammonium sulphate) used in markets such as pharmaceutical (reagent and NF), food (FCC certified) and water treatment (NSF approved). GAC's ammonium sulfate is used in bread making, baking, beer making, pharmaceuticals, nutrient for yeast in fermentations, photographic chemicals, and to form chloramines in water treatment.

GAC produces papermakers, iron free and NSF approved liquid aluminum sulfate (alum). GAC also produces a limited volume of ultra clear alum for demanding high quality applications.

Other products include sodium aluminate, aqua ammonia (ammonium hydroxide), and sodium hypochlorite (bleach).

GAC Chemical is a leading distributor in New England for sulfuric acid, as well as specialty chemicals (flocculants and coagulants). Additionally, GAC Chemical blends and distributes various fertilizer chemicals including urea solutions, ammonium polyphosphate (APP) and urea-ammonium nitrate (UAN).

Our facility has excellent infrastructure for toll blending, toll manufacturing, custom manufacturing, and transloading of materials from small quantities to multiple railroad cars. Most processes are ISO 9001:2000 certified. The GAC Chemical facility is located on a 152 acre industrial parcel in mid-coast Maine with access to water, rail, and highway. Our site is a designated Pine Tree Zone providing financial incentives for new businesses.