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Sodium Chlorite + Activator Kit

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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

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    Registered in accordance with current legal regulations

  • Vegan

    Cruelty free. No test or testing on animals

Buy Sodium chlorite kit with activator

The Original Kit to make CDS according to the instructions of Andreas Kalcker

✔ Highest Quality Water Treatment Kit

Get chlorine dioxide of the highest quality and purity with the 25% Sodium Chlorite + 4% HCL Activator Kit

✔ Trusted Spanish brand

Our KIT is manufactured in Spain with guaranteed raw materials, always offering maximum safety

✔ Optimal Packaging

Our HDPE containers with stopper-dropper allow optimal conservation and dosage of the product.

✔ High Quality

Certified in accordance with the Biocidal Ordinance, complying with all security measures

Sodium Chlorite Plus Activator Kit

How to prepare Chlorine Dioxide

There are 2 ways to do it and we show you both in more detail below in the following sections:

- How to use the water purification kit?

- How is the CDS prepared according to Andreas Kalcker?

Frequently asked questions about the Kit

What is the Chlorine Dioxide Kit and what are its components?

The Chlorine Dioxide Kit is made up of 2 products, which, when used correctly together, will allow you to make your own CDS (chlorine dioxide).

  • Component 1: 25% concentrated solution of sodium chlorite
  • Component 2: 4% HCL (hydrochloric acid) activator .

Both substances have been packaged in opaque bottles that guarantee their conservation. Made of HDPE plastic, optimal for packaging this type of product.

*Component included in art. 95 of EU Regulation 528/2012 on biocides.

How to use the water purification kit?

To make water drinkable with the Dioxnatur Kit you will need:

  • Sodium Chlorite Water Purifier Kit 25% and Activator 140ml, 250 or 60ml from Dioxnatur
  • Dry glass container or glass

How to use:

*The dosage must be 1:1 That is, for each drop of Sodium Chlorite we will use one drop of HCL Activator (Hydrochloric Acid).

Step 1

In the glass container, pour 2 drops of sodium chlorite and 2 of the Activator for each liter of water to be disinfected.

Step 2

After a few seconds, when the mixture turns yellow, add a little water to the glass (>150 ml). This will stabilize the activation.

Step 3

Immediately afterwards, dilute the mixture in the water to be disinfected and wait ½ hour


We may have to repeat the operation until the chlorine level in the water is between 0.5 and 1.5 ppm. The total dosage will depend on the quality of the water to be disinfected. Water should not be consumed until its chlorine level is below 1.5 ppm.

*To measure the level of chlorine in water you can use chlorine strips. Not to be confused with chlorine dioxide strips, the latter are used in the CDS preparation process to check that it is at 3000PPM. They are different processes.

How is the CDS prepared according to Andreas Kalcker?

Instructions to prepare Chlorine Dioxide:

We need the following ingredients:

  • 250ml of filtered or distilled water
  • 5ml of 25% sodium chlorite solution
  • 5ml of hydrochloric acid (HCl) at 4


Prepare a 0.5L glass jar with an airtight glass lid. Avoid metal lids, as they can rust during the process.

Fill the glass jar with cold water to just below the rim of a small glass "shot" glass placed inside the jar.

The glass will be used to mix the ingredients.

Mix 5 ml of sodium chlorite solution with 5 ml of 4% hydrochloric acid in another clean, dry glass.

Place the small glass with the activated mixture of sodium chlorite and hydrochloric acid inside the jar without spilling the mixture into the water.

Close the glass jar tightly with the lid, making sure it is as sealed as possible. The less air in the jar, the better.

Store the jar in a dark place at room temperature for 12 hours.

After 12 hours, you can cool the jar in the refrigerator.

Take the jar outside (in a well-ventilated area) and open the lid.

Replace the beaker containing 5 ml of sodium chlorite and 5 ml of 4% hydrochloric acid with a new one.

Close the jar tightly again and store in a dark place for another 12 hours.

When the two liquids in the bottle have the same color (a strong yellow, similar to sunflower oil), the process is complete.

Carefully remove the glass from the cooled jar without spilling it.

Store the jar with the concentrated CDS in the refrigerator or, preferably, in an amber glass pharmaceutical bottle.

The resulting CDS concentration should be about 3000 ppm (0.3%). You can check this using La Motte chlorine dioxide test strips . Dilute the CDS in a ratio of 1:9 with distilled water and check it with the strips. A reading of 300 indicates the desired concentration.

You can get more information by purchasing the book "The Essentials" by Kalcker where you will find an expanded and more precise step-by-step guide.

What test strips are purchased to measure CDS ppm?

Chlorine dioxide test strips from 0 to 500 ppm.

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

This sodium chlorite plus activator kit is for preparing the CDS , while the chlorine dioxide comes ready to use.

The advantage of the kit is that you can make more CDS and it lasts longer. While chlorine dioxide is more convenient and easier to use because it is already prepared.


How is the Sodium Chlorite Kit stored?

Do not expose to sunlight. Store in a cool, dry and dark place to ensure that the product remains in its best quality and durability conditions. If the room temperature is higher than 22-24ºC, it is recommended to store it in the refrigerator.

How long does the Sodium Chlorite Kit last?

The components can last 5 to 7 years depending on storage conditions.

If the solution is activated (that is, the mixture is made) it should be kept refrigerated (approximately 11º) and we recommend consuming it within the first 6 months.

Warnings and precautions to take into account with the CDS + Activator Kit

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.

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Customer Reviews

Based on 134 reviews
Pedro Lopez
me equicoqué

Pues bien lo siento. Todo fue bien, pero no me dí cuenta hasta que lo tenía en las manos de que había pedido clorito de sodio en vez de dioxido de cloro que es lo que compro siempre. - Tendré que devolverlo o hacer algo...

Alessandra Lasorsa

Molto attenti e rapidi nel rispondere alle richieste.

Grelier Patricia
Très bien

Expedidié rapidement. Je reviendrai sur dioxnatur.

Ester Espinosa Rosello
Muy profesionales

Llevo comprando lo que va de año y son muy atentos,recibo el pedido al día siguiente.Atencion personalizada.Les doy un 10

Antonio Gonzalez Lumbreras
Todo perdecto

Llego pronto y muy buen embalado.

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All our products have been created with this purpose and have been made with great demand and care. From the quality of raw materials to the shipping package. We take care of every detail because every detail matters.

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