Environmental Products

Fix-AllTM - Heavy metal absorber and insolubilizer -

Photo: Electron microscopic picture of iron oxideElectron microscopic picture of iron oxide

Fix-AllTM safely and readily absorbs and insolubilizes heavy metals of contaminated soil and water in pH neutral conditions, thereby reducing the diffusion of environmental contamination.


  1. Strength 1
    By-products of titanium dioxide (gypsum and iron oxide) with high functionality added by our proprietary ultrafine particle technology
  2. Strength 2
    pH neutrality and the ability to insolubilize a wide range of heavy metals (arsenic, selenium, lead, and cadmium)
  3. Strength 3
    Usable with mercury and fluorine
  4. Strength 4
    Stable insolubilization performance efficiently preventing heavy metals from further leaching
  5. Strength 5
    Compatible with slurry injection as well as with powder mixing; sheet products also available
  6. Strength 6
    Simultaneous solidification and insolubilization can be performed when combined with a neutral solidifier.

Typical Applications

  • In-situ insolubilization of contaminated soil
  • Contamination diffusion prevention walls
  • Adsorption layer method
  • Treatment of heavy metal-contaminated water

Chief components

  • Fe2O3・nH2O
  • CaSO4・nH2O

Specific surface area of iron oxide 180m2/g or more

Intended use

  • Mainly used for four elements: arsenic, selenium, lead and cadmium.
  • Also used for cleaning up mercury, hexavalent chromium and fluorine.

Absorption and re-migration test

Figure: Absorption and re-migration test
  1. *1
    Fix-AllTM residue contains about 100mg/kg of heavy metals.
  2. *2
    Standard test method GEPC·TS-02-S1 by Geo-Environmental Protection Center

Absorption test

*You can see the entire image in the figure by scrolling horizontally.

Heavy metals Solution concentration mg/L
Original water Treated water
As 20 < 0.01
Se 20 < 0.01
Cd 20 < 0.01
Pb 20 < 0.01

Re-migration test of heavy metals absorption residue

*You can see the entire image in the figure by scrolling horizontally.

Heavy metals Solution concentration mg/L Environmental standards mg/L
Test in accordance with 46th announcement by MOE Acid
As < 0.01 < 0.01 < 0.01 0.01
Se < 0.01 < 0.01 < 0.01 0.01
Cd < 0.01 < 0.01 < 0.01 0.01
Pb < 0.01 < 0.01 < 0.01 0.01

An example of arsenic purification

Graph: An example of arsenic purification

Technical Certificate

Technical Certificate : Fix-All
The Society of Materials Science, Japan
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