We use cookies in order to guarantee the best possible service. If you continue browsing the site you consent to our cookie use.

CDS Two-component set

Laboratory-tested raw materials
H HCl 4%
on sale
Sodium chlorite 28% / 25% ultrapure 100ml 250ml (NaClO2) in brown glass bottle with dropper insert
CHF 81.40*
1 Set (5 pcs.)
Unit Price:
Base price:
Delivery Time
Deliverytime: 1 Day
Stock: In stock

CDS Two-component set 10% discount

Produced and bottled in Switzerland by mychem.ch

Contents: Sodium chlorite 25% ultrapure, 100 ml
                Hydrochloric acid 4% ultrapure, 100 ml
                Dropper bottle amber glass 100ml
                Measuring cup 5ml

Make CDL when you need it.

This kit includes everything you need to make your own chlorine dioxide solution and is sufficient for 16 vials of CDS 0.3%.

Instructions for the preparation of 100ml chlorine dioxide solution


Make sure the room is well ventilated, as chlorine dioxide gas escapes during the chemical reaction and you must not inhale it.
Be careful to mix only small amounts, e.g. three drops each. Larger quantities produce large amounts of gas.


Drop 6ml sodium chlorite (NaClO2) and 6ml hydrochloric acid (HCl) in the ratio into the empty dropper bottle.
Then fill the bottle with water, approximately up to the point marked in the picture.
Now a process starts which forms chlorine dioxide gas.
This is bound in the water and it slowly turns yellow.
Depending on the water temperature, this process runs faster or slower until the final value is reached.
We recommend a waiting time of approx. 10 hours after mixing before use.

Ready-made Mychem CDS in comparison to home-made CDS

One drop of each NaClO2 and HCI corresponds to the effective amount of eight drops of our ready-made CDS.
Example: 3 drops of NaClO2 mixed with 3 drops of HCl = 24 drops of Mychem CDS.


The CDS obtained by mixing NaClO2 and HCl contains by-products from the raw chemicals and does not reach the purity of our finished CDS.
The manufacturing process of our CDS is a special, elaborate Mychem proprietary development based on the reaction process. For the manufacturing process, we use only high-purity, very expensive raw materials that are not commercially available. The result is our CDS in its purest form.

Personal security

Delivery only to adults over 18 years.

MYCHEM quality: MYCHEM offers the highest possible product quality and purity. It stands up to the absolute highest quality comparisons and requirements.
before buying please note danger information
we take small amounts of privates back for free

own label   

read show more
read all accessories
read Reviews
read Query on the Item?
Do you have any questions on this product?
Your email address:
Your question:
Please enter these letters

Customers who bought this product also bought these items:

starting CHF 13.50*
1 bottle
starting CHF 12.60*
1 bottle
starting CHF 4.68*
1 pcs.