Klozur® One

Klozur® One is an all-in-one product containing Klozur SP and carefully selected activator reagents. This fully soluble product can be prepared using a single injection system to treat highly contaminated source areas or plumes. Klozur One builds upon the successful history of Klozur SP by delivering activated persulfate chemistry more conveniently than ever before.

This fully soluble product will simplify and increase the convenience of delivering Klozur activated persulfate in field applications. Klozur One’s chemistry has been tested to show effective treat many common COCs while having the necessary stability to be stored, batched, handled and transported with the same hazard classification as Klozur SP. 

Click here to view our recent webinar introducing Klozur One.

To learn more about our entire Klozur persulfate portfolio of products, click here.


  • Combined Activator and Klozur SP in a single product
  • Multiple activation pathways
  • Completely soluble
  • Trace permanganate provides visual indicator
  • Chlorinated ethenes
  • Petroleum hydrocarbons
  • BTEX

In situ chemical oxidation (ISCO) is the introduction of an oxidant into the subsurface for the purpose of oxidizing contaminants in soil and groundwater. ISCO is ideal for the elimination of contaminant concentrations in source zones and hot spots.

  • Injection through constructed wells or direct push technology (DPT) rods
  • Soil mixing or blending
  • Amended to the base or fill for an excavation
  • Case Studies
  • Contaminants Treated

    Chlorinated Solvents

    • Tetrachloroethene (PCE)

      Tetrachloroethene (PCE)

      A colorless liquid that is mobile in groundwater, toxic at low levels, and has a high density, making cleanup activities more difficult than for oil spills.

    • Trichloroethene (TCE)

      Trichloroethene (TCE)

      A chlorinated hydrocarbon commonly used in dry cleaning and degreasing. Solubility in water 1.28 g / L and a log Kow of 320. May form dense non-aqueous phase liquids (DNAPLs). Anticipated to be a human carcinogen. MCL of 5 ppb.

    • Dichloroethene (cis and trans DCE)

      Dichloroethene (cis and trans DCE)


    • Benzene


      A colorless and highly flammable liquid with a sweet smell, it is a natural constituent of crude oil, an aromatic hydrocarbon, and one of the most elementary petrochemicals. The greatest use of benzene is as a building block for making plastics, rubber, resins and synthetic fabrics like nylon and polyester. Other uses include: as a solvent in printing, paints, dry cleaning, etc.

    • Toluene


      An aromatic hydrocarbon and a constituent of crude oil and gasoline, widely used as a solvent. Solubility in water 0.47 g / L and a log Kow of 2.73. May form light non-aqueous phase liquids (LNAPLs). Little carcinogenic potential. MCL of 1 ppm.

    • Ethylbenzene


      A highly flammable, colorless liquid with an odor similar to gasoline. The greatest use — more than 99 percent — of ethylbenzene is to make styrene, another organic liquid used as a building block for many plastics. It is also used as a solvent for coatings, and in the making of rubber and plastic wrap.

    • Xylenes


      An aromatic hydrocarbon consisting of a benzene ring with two methyl substituents, Xylenes are mainly produced as part of the BTX aromatics (benzene, toluene and xylenes) extracted from the product of catalytic reforming known as "reformate".


    • Acenaphthene


      A colorless solid that consists of naphthalene with an ethylene bridge connecting positions 1 and 8. Coal tar consists of about 0.3% of this compound.

    • Acenaphthylene


      A polycyclic aromatic hydrocarbon (PAH) that is produced industrially by dehydrogenation of acenaphthene. Like most PAHs, acenaphthylene is used to make dyes, plastics and pesticides.

    • Anthracene


      A solid polycyclic aromatic hydrocarbon (PAH), obtained from coal tar. Anthracene is used to make dyes, plastics and pesticides.

    • Benzo(a)anthracene


      A polycyclic aromatic hydrocarbon (PAH) with the chemical formula C18H12.

    • Benzo(a)pyrene


      A polycyclic aromatic hydrocarbon (PAH) found in coal tar, listed as a Group 1 carcinogen by the IARC.

    • Benzo(b)fluoranthene


      An organic compound with the chemical formula C20H12.

    • Benzo(ghi)perylene


      A polycyclic aromatic hydrocarbon (PAH) with the chemical formula C22H12.

    • Chrysene


      A polycyclic aromatic hydrocarbon (PAH) that is a natural constituent of coal tar and creosote, a chemical used to preserve wood.

    • Dibenzo(ah)anthracene


      A common polycyclic aromatic hydrocarbon (PAH) made of five fused benzene rings. It is white to light yellow crystalline solid.

    • Fluorene


      Obtained from coal tar, it is insoluble in water and soluble in benzene and ether, and is used to make dyes, plastics and pesticides.

    • Naphthalene


      The simplest polycyclic aromatic hydrocarbon, it is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. Most naphthalene is derived from coal tar.

    • Phenathrene


      A composite of phenyl and anthracene. Phenanthrene appears as a white powder having blue fluorescence.

    • Pyrene


      A polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system. Pyrene is used to make dyes, plastics and pesticides.


    • Methyl tert-butyl ether (MTBE)

      Methyl tert-butyl ether (MTBE)

      Derived from fossil fuels and almost exclusively used as a fuel component in fuel for gasoline engines.

    • Tert-butyl alcohol (TBA)

      Tert-butyl alcohol (TBA)

      Derived commercially from isobutane as a co-product of propylene oxide production, it is used as a solvent, ethanol denaturant, paint remover ingredient, and gasoline octane booster and oxygenate.

    Petroleum Hydrocarbons

    • Creosote (coal tar)

      Creosote (coal tar)

      The portion of chemical products obtained by the distillation of a tar that remains heavier than water. It is used as a wood preservative and contains a number of phenols, cresols, and other organic compounds.


    • Phenol


      A white crystalline solid that is volatile; it was first extracted from coal tar, but today is produced on a large scale (about 7 billion kg/year) from petroleum.

    • 4-chloro-3-methyl phenol

      4-chloro-3-methyl phenol

      A pinkish to white crystalline solid with a phenolic odor. Also known as p-Chlorocresol, it is used as an antiseptic and preservative.

    • 2-chlorophenol


      An organic compound that is a colorless to light brown liquid and is a derivative of phenol. It is an intermediate in the polychlorination of phenol.

    • 2,4-dinitrophenol


      An inhibitor of efficient energy (ATP) production in cells with mitochondria. Commercial DNP is primarily used for scientific research and in manufacturing.

    • 4-nitrophenol


      A phenolic compound that is used in the manufacturing of methyl and ethyl parathion, N-acetyl-p-aminophenol (acetominophen), dyestuffs and as a leather treatment agent, which may result in its release to the environment through waste streams.

    • Pentachlorophenol


      Pure pentachlorophenol exists as colorless crystals and impure pentachlorophenol is dark gray to brown and exists as dust, beads, or flakes. It is used as a pesticide, a disinfectant and as a wood preservative for utility poles, railroad ties, and wharf pilings.


    • Chlorobenzene


      Chlorobenzene will enter the atmosphere from fugitive emissions connected with its use as a solvent in pesticide formulations and as an industrial solvent. Releases into water and onto land will dissipate due to vaporization into the atmosphere and slow biodegradation in the soil or water.

    • Dichlorobenzene


      1,2-Dichlorobenzene or ortho-dichlorobenzene - A colourless liquid that is poorly soluble in water but miscible with most organic solvents. 1,3-Dichlorobenzene or meta-dichlorobenzene. 1,4-Dichlorobenzene or para-dichlorobenzene - A colorless solid with a strong odor.

    Fluorinated Compounds



      A synthetic perfluorinated carboxylic acid and fluorosurfactant.

    Pesticides & Herbicides

    • Lindane (hexachlorocyclohexane)

      Lindane (hexachlorocyclohexane)

      An organochlorine chemical variant of hexachlorocyclohexane that has been used both as an agricultural insecticide and as a pharmaceutical treatment for lice and scabies.


    • Acetone


      A colorless, mobile, flammable liquid, and is the simplest ketone, that is mainly released into the environment from industrial activity, but also is naturally released from plants, trees, volcanic gases and forest fires.

    • 4-methyl-2-pentanone


      A colorless liquid, a ketone, is widely used as a solvent.

    • 1,4-dioxane


      A heterocyclic organic compound primarily used as a chlorinated solvent stabilizer.


    • TNT


      A yellow colored solid sometimes used as a reagent in chemical synthesis, found in military explosives or industrial applications.

    • DNT


      A pale yellow crystalline solid that is well known as a precursor to TNT, and is usually used in the production of toluene diisocyanate, which is used to produce flexible polyurethane foams.