Magnesium Hydroxide Liquid 60% (Mg(OH)2 slurry, CAS 1309-42-8) is a thick, white suspension with a specific gravity of about 1.5 to 1.6 and a pH near 10.5. It is a safer-to-handle alternative to caustic soda for acid wastewater neutralization, and is used for sewer odor and corrosion control, metals precipitation and as an antacid ingredient. The slurry settles, so tanks need mixing or recirculation and bottom outlets. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Safety data: FloMag H Magnesium Hydroxide Slurry Safety Data Sheet (SDS) – Martin Marietta Magnesia Specialties
Polypropylene is the most economical tank material for Magnesium Hydroxide Liquid 60%, rated Excellent. PVDF (Kynar®), HDPE and nylon are also rated Good or better. Rated Fair (contact us before use): aluminum hardware.
How Magnesium Hydroxide Liquid 60% works with the plastics used to make our storage tanks.
| Material | Rating |
|---|---|
| HDPE | |
| Polypropylene | |
| Nylon | |
| PVDF (Kynar®) |
How Magnesium Hydroxide Liquid 60% works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Magnesium Hydroxide Liquid 60% works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
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