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Chlorine dioxide

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  • Guaranteed quality

    Product made with great demand and care

  • Pure and Natural

    Free of residues, gluten, GMO, heavy metals and additives

  • Certificate

    Registered in accordance with current legal regulations

  • Vegan

    Cruelty free. No test or testing on animals

Buy Chlorine Dioxide

Chlorine dioxide CDS 3000 PPM


✔ Chlorine dioxide with a high purity of 99.99% and ready to use

Chlorine dioxide solution 0.3% 3000 PPM manufactured as recommended by Andreas Kalcker. N or it needs to be activated because it is already activated and ready to use.

Recent and safe manufacturing

Our chlorine dioxide is manufactured in Spain, rigorously following all safety measures and is certified in accordance with the Biocide Ordinance.

Maximum quality and no waste

Buy chlorine dioxide of the highest quality and purity, completely residue free. Made from sodium chlorite without sodium nitrate. Without excipients or preservatives. No activators. Distilled water csp 100%.

Amber glass container with gift syringe

Our chlorine dioxide is packaged in amber glass bottles, protecting the contents from light. The special HDPE obturator dropper is a dropper and includes a hole to place the syringe. Now all CDS products have a syringe included.

Effectiveness and efficiency up to 99.9999% 

Highly effective against bacteria, viruses, fungi, spores, algae, mites, parasites, biofilms and germs such as Legionella.

Frequently asked questions about chlorine dioxide

Characteristics of chlorine dioxide

Presentation of the 0.3% chlorine dioxide solution in a dark amber glass container, for better conservation, with several capacities to choose from (125ml, 250ml and 500ml) with a 6ml measuring cap.

Without excipients or preservatives. Distilled water csp 100%. No activation required. Store in the refrigerator, away from light and out of reach of children.

Chlorine dioxide is a biocide included in Art. 95 of the EU regulation 528/2012 on biocides. Exclusive use for the disinfection of water for human and animal consumption .

Chlorine dioxide 0.3% concentration guaranteed at factory outlet.

What is chlorine dioxide or CDS

Chlorine dioxide is a biocide included in Art. 95 of the EU regulation 528/2012 on biocides. Intended for exclusive use for the disinfection of water for human and animal consumption.

Highly effective biocide used to control bacteria, viruses, fungi, spores, algae, mites, parasites, biofilms and pathogenic germs such as legionella, among others.

Advantages of Dioxnatur chlorine dioxide made by electrolysis

  • Ultra pure CDS. Purity of the gas produced. Without the impurities that are generated by other production methods.
  • To manufacture it we use only one component: sodium chlorite. Without acids or “activators”.
  • Softer CLO2 – The gas produced through the electrolysis process is much softer than that produced by other means. This is due to the absence of impurities in the solution.

When buying chlorine dioxide, opt for the guarantee, trust and security of buying at Dioxnatur .

How is chlorine dioxide or CDS used?

When your order of chlorine dioxide arrives at your home, do not open it immediately. Before that, put it in the refrigerator and wait for it to cool down. When it is very cold, you can use it.

Remember that the chlorine dioxide is already activated, so there is nothing to activate.

When you want to use it, you only have to dose 1 ml of the solution (or 20 drops) for each liter of water . Afterwards, your water with CDS will be ready for consumption.

Does chlorine dioxide require cold shipping?

The CDS does not require cold shipping , it is a product that just needs to be kept refrigerated for 1 hour before unsealing it.

Once opened, it must be kept refrigerated at a temperature below 10ºC so that the product maintains its properties as much as possible.

CDS Conservation Tips

While the container is closed, keep it stored in a cool, dry place protected from light.

Once opened, and before use, you must store it in the refrigerator, in a vertical position, and do not open it until it is very cold (between 5 and 11ºC approx.), so that the gas does not volatilize.

Likewise, when you use it, try to close it quickly so that the gas does not evaporate and the CDS remains in perfect condition.

The expiration date on the bottle indicates the maximum consumption date, preferably. However, we recommend that it be consumed during the first 6 months since, although the CDS does not exactly expire , it does lose concentration.

How long does chlorine dioxide last open?

Approximately 6 months, depending on good storage conditions. The CDS does not exactly expire, but rather it loses concentration and in the end only water remains.

Is it already ready for direct use?

The product is ready to use and dose into water.

Read the label before use.

What is the necessary amount of chlorine dioxide to make water drinkable?

To make water drinkable with CDs, you must dose 1ml (or 20 drops) for each liter of water to be treated.

If it comes with a dropper, how do you measure the amount in ml?

The equivalence is 1ml = 20 drops . In addition, the dropper has a hole through which you can insert a syringe if required, which is now also included as a gift.

What is the difference between buying chlorine dioxide and the Dioxnatur water purification kit?

Basically, the kit is for preparing the CDS, while the chlorine dioxide comes ready to use.

The advantage of CDS is that chlorine dioxide is already activated and therefore does not need to be prepared, it is much more convenient and easier to use.

Warnings and precautions to take into account with Chlorine Dioxide or CDS

Hazard Indications: Eye Irrit. 2: H319 – Causes serious eye irritation. Keep out of reach of children. Use biocides in a safe way. Always read the label and information about the biocide before using it.

This product is NOT a dangerous goods within the meaning of the GGVS and is NOT a dangerous substance within the meaning of the EC directives.

Security file



Chlorine dioxide solution (<0.3%)

Product registered in accordance with Regulations and art. 95 of the Biocidal Regulation EU 528/2012. UFI No.: C300-E005-P00T-G81T

Other names: CDS

Formula: ClO2

Content: <0.3%

CAS: 10049-04-4

EC No.: 233-162-8

Index No.: 017-026-01-0

Taric: 28121990

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Customer Reviews

Based on 286 reviews
Todo correcto

Vino super bien protegido para el transporte. Gracias

Todo perfecto!

Rápidos y eficaces!! Es el tercer pedido y seguiré !

Egidio Antonio Di Flumeri


Nerea Sánchez Sánchez
Lo recomiendo

Pedido perfecto,rápido,buena calidad.
Estoy contenta ,veo cambios en mi cuerpo con el tratamiento que estoy realizando con el.

Aída H

Muy buen producto. Tiempo de entrega según lo acordado. Muchas gracias!

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