250 gallons of sulfuric acid, double walled, through a 34 inch door
The Snyder 5990502N30 is a double wall chemical tank built for sulfuric acid: a 250 gallon white high density linear polyethylene primary in the acid grade, rated for a specific gravity of 1.9, or 3,962 pounds of contents against 2,085 for water, standing inside its own secondary containment in a shell 34 inches across and 83 inches tall, weighing 150 pounds. Sulfuric acid is heavy, it generates heat when it meets water, and it is the chemical a spill plan worries about most, which is why the acid grade and the double wall go together even at day-tank scale. A 14 inch threaded, vented lid on the primary, and a 3 year warranty.
Want it on the pad this month? Check freight to your ZIP, add it to your cart above, and 866-418-1777 will confirm the ship date.
Acid grade plus containment
A tank sold for sulfuric acid is built and fitted for the acid's density and its exotherm, with fittings chosen for the acid rather than for general service; confirm the concentration you buy against the chemical compatibility database, because sulfuric at different strengths behaves as different chemicals, and the list below is the resin's rated chemistry. Never add water to a tank that holds acid; the fill order is water first, acid second. The double wall catches a primary leak in the interstitial space, so the tank stands beside the dosing pump inside a building with no spill pallet and no berm; the SPCC 40 CFR 112 compliance walkthrough covers where that satisfies a spill plan on its own, and the Captor double wall freeboard sizing guide works out how much of the nominal 250 gallons is usable once expansion and the interstice are accounted for. The tank sizing calculator sizes a day tank to the pump's rate, and the tank sizing guide covers the reserve.
Grades on the 34 x 83 inch double wall, and the sizes beside it
| Part | Gallons | Diameter x height | Empty weight |
|---|---|---|---|
| 5990502N30 (this tank, sulfuric grade) | 250 | 34 x 83 in | 150 lb |
| 5990502N45 (ASTM certified) | 250 | 34 x 83 in | 150 lb |
| 5990502N42 (XLPE) | 250 | 34 x 83 in | 150 lb |
| 5710102N30 (sulfuric grade) | 150 | 34 x 62 in | 110 lb |
| 5740102N30 (sulfuric grade) | 275 | 47 x 63 in | 200 lb |
The N45 is the general chemical grade in the same shell with ASTM certification, and the N42 is cross-linked polyethylene for oxidizers, both at 150 pounds. The other sulfuric-grade double walls are the sizes on either side: the 5710102N30 at 150 gallons and 62 inches on the same 34 inch base, and the 5740102N30 at 275 gallons in a squat 47 by 63 inch shell for under a low ceiling.
Need a different size? Every tank in the table is in stock programs; ask for a quote on the one that fits, or call 866-418-1777.
Connections, alarms and the interstitial check
- Access: 14 inch threaded, vented lid on the primary, 83 inches up; vent it outside through a line the acid mist cannot corrode, and fill by hose or tote pump through a dip tube.
- Outlet: through both walls together, with an acid-rated transition supported off the floor; specify the fitting when ordering.
- Service limit: 120 F / 48 C; acid that arrives warm from dilution is watched against that limit.
Choose the level sender for sulfuric specifically with the level gauge selection guide; wetted parts rule out most standard senders, and a non-contact radar unit on the lid is the usual answer. A day tank is also where overfills happen, because a tote pump runs until someone stops it; the tank spillover redundancy guide covers the high-level alarm and automatic cutoff that stop a release before the containment has to catch it. The interstitial space is the leak alarm: a float switch, a look into the port each shift, and a logged check each week; anything found there takes the tank out of service that day. Strap the tank to a wall; a 34 inch base under 83 inches of dense acid has a high center of gravity.
Where you will find one
Sulfuric acid day tanks for pH control at water and wastewater plants, and for process use at industrial sites, inside buildings and at sites an inspector visits. Label the tank for the fire inspector and the workplace inspector at once, and keep the approach clear for the tote.
Shipping the tank
The 5990502N30 ships palletized as LTL freight (NMFC 156600-03) at a class rate; the freight cost estimator turns your ZIP into a freight number; the price on this page is before freight. Two people carry 150 pounds through a door. Water-test the primary, confirm the interstice stays dry through the hold, then drain and dry completely before the first acid fill; water left in an acid tank is the exotherm nobody wants. Walk the base after the first hard rain; a pad that shifts shows it at the edge first.
Compatibility list
Liquids the maker rates this resin for, with concentration limits and the wetted fitting and gasket to specify. Confirm your own concentration and temperature on the chemical page or in the chemical compatibility database before ordering.
- Sulfuric Acid at 98% - run CPVC fittings and Viton gaskets there.Beyond acid, it is also configured for non-acid duty: DEF, urea solution, glycols, and s
- Hydrochloric Acid at 37% - PVC fittings, Viton gaskets
- Phosphoric Acid at 85% - PVC fittings, Viton gaskets
- Hydrofluoric Acid at 48% - PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid at 26% - PP/PVC fittings, Viton gaskets
- Acetic Acid at 60% - PP/PVC fittings, EPDM gaskets
- Peracetic Acid at 30% - 316SS fittings, Aflas gaskets
- Sodium Hypochlorite at
- Hydrogen Peroxide at 50% - PVC fittings, Viton gaskets
- Ferric Chloride at 50% - PVC fittings, EPDM gaskets
- Ferric Sulfate at 60% - PVC fittings, EPDM gaskets
- Ferrous Sulfate at 20% - PVC fittings, EPDM gaskets
- Aluminum Sulfate at 50% - PVC fittings, EPDM gaskets
- Polyaluminum Chloride - PVC fittings, EPDM gaskets
- Calcium Chloride at 40% - PVC fittings, EPDM gaskets
- Magnesium Chloride at 30% - PVC fittings, EPDM gaskets
- Sodium Carbonate at 30% - PVC fittings, EPDM gaskets
- Potassium Carbonate at 50% - PVC fittings, EPDM gaskets
- Potassium Hydroxide at saturated - PVC fittings, EPDM gaskets
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
- Sodium Thiosulfate at 40% - PVC fittings, EPDM gaskets
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets
- DEF at 32.5% - 316SS fittings, EPDM gaskets
- Urea Solution at 50% - PP/PVC fittings, EPDM gaskets
- Ethylene Glycol at 100% - PVC fittings, EPDM gaskets
- Propylene Glycol - PP/316SS fittings, EPDM gaskets
Freight and documents
Ships from: Lincoln, NE. LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Snyder Industries 5990502N30.
See this tank
Interactive 3D model with live fill. This tank has an interactive 3D model built to its manufacturer dimensions. Rotate it, and set a fill level to see how much liquid it holds at any height. Open the 3D view on the product photo above. Download the 3D model (GLB).
Product video. Watch the Snyder Industries 250 Gallon HDLPE Vertical Double Wall Liquid Chemical Storage Tank - Sulfuric Acid video (70 seconds) with dimensions, fittings and shipping notes.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.
