MAGNESIUM HYDROXIDE LIQUID 60% & PVDF Compatibility

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

PVDF temperature limit: 275°F (135°C). That is Arkema’s maximum use temperature for Kynar Flex® 2850 PVDF, the resin we mold, with Magnesium Hydroxide. Arkema’s limits are for solid resin at atmospheric pressure and do not account for mixtures. Source: Arkema Kynar® PVDF chemical resistance chart. Confirm your application with Bailiff before ordering.

At a glance

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.

  • Excellent No or minor effect. Recommended.
  • Good Slight effect. Generally suitable.
  • Fair Moderate effect. Limited or conditional use — contact us.
  • Not Recommended Severe effect. Do not use.
  • No Data Not tested. Contact us before use.

Tank Resins

How Magnesium Hydroxide Liquid 60% works with the plastics used to make our storage tanks.

Material Relative cost Rating
HDPE $ Good
Polypropylene $$ Excellent
Nylon $$$ Good
PVDF (Kynar®) $$$$ Excellent

Fittings

How Magnesium Hydroxide Liquid 60% works with the plastics used for tank fittings.

Material Rating
HDPE Good
PVC Excellent
CPVC Excellent
Polypropylene Excellent
PVDF Excellent

Gaskets & O-Rings

How Magnesium Hydroxide Liquid 60% works with gasket and O-ring materials.

Material Rating
Buna-N Excellent
EPDM Excellent
Viton® Excellent

Metals

How Magnesium Hydroxide Liquid 60% works with the metals used for fittings and bolts.

Material Rating
316 Stainless Steel Excellent
Hastelloy Excellent
Titanium No Data
Aluminum Fair

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Storing this chemical in PVDF?

Tanks & Fittings Built for It

PVDF tanks from 25 to 5,000 gallons with fittings installed. Confirm concentration and temperature with us before you order.

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