METIS Scientific

Surface Decontamination of Iron Compounds (Iron (II) Chloride (FeCl2)) by DeconGel 1101

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Abstract
Surface decontamination efficacy determination of DeconGel™ 1101 on stainless steel, carbon steel, aluminum and concrete surfaces contaminated with Iron (II) Chloride (FeCI2) was performed with ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) according to Environmental Protection Agency (EPA) SW-846 Methods: 3005A (sampling) and 6010C (analysis).

Hazardous Materials Relevance
While iron itself is non-hazardous, iron dust can be considered as an inhalation hazard. Compounds of iron are often corrosive and harmful; one such compound is iron (II) chloride (FeCfe) or ferrous chloride which is often found in the waste water treatment arena and in laboratory settings as a reducing agent. Ferrous chloride was chosen as a representative iron compound for evaluating DeconGel's efficacy; DeconGel is expected to have similar efficacy towards the wide range of iron compounds.

Highlights

  • Excellent surface decontamination was achieved by applying DeconGel 1101 onto surfaces contaminated with iron chloride resulting in the encapsulation of contaminants by DeconGel's active components. Decontamination efficacies of DeconGel 1101 ranged from 98.8% (on concrete) to 99.5% (on carbon steel) to 99.5% (on stainless steel) as determined by residual swipe testing.
  • Optimized experimental and analytical methods were successfully developed following standardized EPA sampling and analysis methods as guidelines for determination of inorganics in aqueous samples. When necessary, experimental methods were customized to afford complete dissolution of inorganic contaminants, and to ensure accurate decontamination efficacy determination of DeconGel.

Results
Table 1 shows the decontamination efficacies of DeconGel 1101 on stainless steel, carbon steel, and concrete surfaces contaminated with ferrous chloride as determined by residual swipe testing.

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