The Chem-Tainer 500 Gallon 20 Degree Open Top Cone Bottom Tank (SKU TC5264CA) is a polyethylene cone-bottom tank built for chemical service where you need to fully drain the vessel and clear settling solids off the bottom. It holds 500 gallons, stands 64 inches tall on a 52 x 52 inch footprint, and carries a 1.5 specific gravity rating. The open top gives you direct access for manual loading, mixing, and inspection, while the 20-degree cone keeps product moving toward a single drain point. This is one of the more common open top cone bottom tank configurations buyers search for when they want a 500 gallon cone tank that empties cleanly.
Will this cone tank work for your application?
Fill geometry and weight are what determine whether your stand, slab, and lifting plan are right. At full water, this tank carries about 4,170 pounds; at its 1.5 specific gravity rating it is engineered for contents up to roughly 6,255 pounds. Use those numbers to size your cone stand and confirm the floor or pad beneath it. A cone-bottom tank must sit in a matching support stand or be elevated so the cone hangs free and drains to the outlet, not on a flat floor. If you are still narrowing capacity, the Tank Sizing Calculator and Tank Sizing Guide walk through volume, weight, and footprint together. For drainage trade-offs, the comparison of Chem-Tainer cone-bottom tanks at 30 vs 45 degrees explains how cone angle affects residual heel and solids handling, and our 500 gallon buyer's guides for the 30 degree, 45 degree, and 30 degree with poly stand versions help you choose the right setup.
Chemical compatibility
This tank is molded from polyethylene with a 1.5 specific gravity rating. The resin family in our data is recorded with an uncertain designation, so confirm whether your unit is HDLPE or XLPE for your exact chemical and concentration before placing it in chemical service. Within the 1.5 rating, this tank is suited to chemicals such as Acetic Acid at 60%, Aluminum Sulfate at 50%, Calcium Chloride at 40%, DEF at 32.5%, Ferrous Sulfate at 20%, Magnesium Chloride at 30%, Sodium Carbonate at 30%, Urea Solution at 50%, and Ozonated Water up to 10 PPM. Fittings and gaskets must match the chemical: most of these call for PVC fittings with EPDM gaskets, while Acetic Acid and Urea Solution use PP or PVC fittings, and DEF calls for 316 stainless steel fittings with an EPDM gasket. Always verify against the OEM chemical-resistance chart for your specific concentration and temperature, since ratings are concentration and temperature dependent. See the dedicated pages for Acetic Acid, Aluminum Sulfate, Calcium Chloride, DEF, Ferrous Sulfate, Magnesium Chloride, Sodium Carbonate, and Urea Solution, or browse the full Chemical Compatibility Database. Ozonated Water (up to 10 PPM) is also compatible at this rating with PVC fittings and an EPDM gasket.
The mistake to avoid: specific gravity
The most common error with this tank is matching it to a chemical that is too dense for a 1.5 specific gravity vessel. Heavier chemicals require a higher-rated 1.9 specific gravity tank, not this one. That group includes Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrochloric Acid, Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Peracetic Acid, Phosphoric Acid, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Hypochlorite, Sodium Thiosulfate, Sulfuric Acid, and Zinc Orthophosphate. Several of these also escalate the gasket and fitting: Hydrochloric, Hydrofluoric, Hydrofluosilicic, Hydrogen Peroxide, Phosphoric, Sodium Hypochlorite, and Sulfuric Acid require Viton gaskets (Sulfuric also moves to a CPVC fitting), while Peracetic Acid is the lone case calling for an Aflas gasket with a 316 stainless steel fitting. Do not assume EPDM carries across that list. If your chemical is on it, step up to a 1.9-rated tank rather than running it here; confirm the matched product through the Chemical Compatibility Database or by phone at 866-418-1777. The record carries no factory-installed fitting data, so cross-check capacity, fill weight, and outlet placement against the technical drawing on this page before you finalize fittings.
This tank ships LTL freight, quoted live to your ZIP code, from the nearest of our Chem-Tainer plants in Hanford, CA or West Babylon, NY. With origins on both coasts, an East-coast destination and a West-coast destination will see materially different freight, so get an exact number with the Freight Cost Estimator, or call us at 866-418-1777 to confirm fittings, specific gravity, and the right cone stand for your install before you order.
