Where to buy chlorine dioxide: what to check before you buy
If you are looking for where to buy chlorine dioxide, you will find many offers with different sizes and concentrations. This guide sums up what to check so you receive a product that is well packed, properly labelled and in good condition.
1. Concentration: 3000 ppm
The most common solution is 3000 ppm (about 3 g of chlorine dioxide per litre, 0.3 %), sold as CDS. It is a concentrated solution used diluted, always following the label. Be wary of products that do not state their concentration clearly. More in what 3000 ppm means and how to store it.
2. Bottle: tightly closed amber glass
Chlorine dioxide is a gas dissolved in water: light breaks it down and plastic lets part of the gas escape. The right container is amber glass with a safety cap. See the amber glass or HDPE guide.
3. Label: TP5 biocide and safety data sheet
Chlorine dioxide for water treatment is a product-type 5 (TP5) biocide. Check that the label shows the intended use, safety information, batch and responsible company, and that the seller provides the safety data sheet (SDS).
4. Preparation and storage
As a dissolved gas, the solution loses strength with heat and every time it is opened. Buy from a seller who prepares and packs it with frequent turnover, and keep it refrigerated, in the dark and tightly closed as soon as it arrives.
5. Size by consumption
| If you need… | Recommended size |
|---|---|
| Occasional use | 125 ml or 250 ml bottle |
| Regular use | 500 ml or 1 L bottle |
| Several units or resale | Lots of 5 to 20 bottles |
| Preparing it yourself | Sodium chlorite + activator kits |
| Treating and monitoring stored water | Water Treatment Pack |
6. Shipping and support
A heat-sensitive product should spend as little time in transit as possible. A seller you can reach by phone or WhatsApp before buying is also a plus.
Buying chlorine dioxide at Aquapurelife
- Prepared and packed in Spain, in amber glass with a safety cap.
- 3000 ppm concentration stated on the label, with its TP5 biocide information.
- Sizes from 125 ml to 1 L and professional lots, in the chlorine dioxide collection.
Frequently asked questions
Are chlorine dioxide and CDS the same?
CDS is the trade name for the aqueous chlorine dioxide solution, usually at 3000 ppm.
What should I do when it arrives?
Keep it in the fridge, in its original tightly closed bottle, and read the label before use.
Do you ship outside Spain?
Yes, with rates and delivery times shown at checkout.
TP5 biocidal product for water treatment. Use biocides safely. Always read the label and product information before use. Sale restricted to adults (18+).