Buy polyethylene Ammonia Tanks for sale at the lowest prices online. Ammonia, also called Anhydrous Ammonia, NH3, and Azane, is used most as concentrated fertilizer in agricultural crop operations but is also widely used for various other agriculture, industrial, and commercial applications. Ammonia storage is recommended in HDPE / XLPE vertical chemical tanks, cone bottom tanks, and double wall tanks, with specific gravity 1.5 or greater, and installed with PP / 316 SS fittings, EPDM gaskets, and Hastelloy / Titanium bolts.