Polypropylene tanks by Bailiff Enterprises · Willis, Texas936-228-1520
Alum (Aluminum Sulfate) (Al2(SO4)3, CAS 10043-01-3) is usually supplied as liquid alum, a clear to pale amber acidic solution of about 48% with a specific gravity near 1.33. It is one of the most common coagulants in drinking water and wastewater treatment, and is also used in paper sizing, phosphorus removal and soil pH control. Liquid alum storage tanks should resist mild acid and avoid freezing below about 0°F. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Safety data: Aluminum Sulfate Safety Data Sheet (SDS) – USALCO
HDPE is the most economical tank material for Alums, rated Excellent. Polypropylene and nylon are also rated Good or better.
How Alums works with the plastics used to make our storage tanks.
| Material | Relative cost | Rating |
|---|---|---|
| HDPE | $ | |
| Polypropylene | $$ | |
| Nylon | $$$ | |
| PVDF (Kynar®) | $$$$ |
How Alums works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Alums works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
Storing this chemical in polypropylene?
Polypropylene tanks from 25 to 6,000 gallons with polypropylene fittings installed. Confirm concentration and temperature with us before you order.
Send the chemical, concentration, temperature and size. We’ll match the tank and fittings and send a quote.