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$49.00
$49.00
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DescriptionCDS "mychem.ch-Style" Glass Jar Experiment Kit
✔️ CDS (Chlorine dioxide solution)—easy to make yourself, whenever you need it.
✔️ Includes all the essential components in the set.
✔️ Includes step-by-step instructions.
Why this set?
In the Internet There are many inaccurate instructions circulating about the so-called “cucumber jar” method—often untested and with incorrect results.
We examined various approaches and found that:
• Instead of the promised 0.3% concentration, the result was only 0.07% (about ¼ of the target concentration).
• The pH was approximately 7.
• Important instructions regarding the disposal of leftover chemicals were completely missing.
With our kit and the included mychem.ch instructions, you'll have a safe, proven method for making CDS at the correct concentration.
What's Included• 0.5 L clear glass jar with a 250 ml mark
• 40 ml shot glass
• 100 ml of sodium chlorite ((NaClO₂)24–26%
• 100 ml of 4% hydrochloric acid (HCl)
• 3-ml measuring pipettes x 2
• 5 ml measuring cup
• 4 replacement gaskets for the pickle jar*
• HDPE funnel
• 100 ml amber glass bottle with dropper
• 250 ml amber glass bottle with a screw cap
• 100 g ascorbic acid
• Printed instructions for preparing a 0.3% solution CDS
*Note: No sealing ring is completely resistant to chlorine dioxide—so be sure to check its integrity regularly.
Manufacturing – A Brief Explanation1. Fill the beaker with water up to the mark (250 ml).
2. Pour the reagents into the shot glass and place it in the beaker.
3. Seal the jar airtight and store it in a dark place at room temperature for 24 hours.
4. Repeat step 5 five times until 0.3% CDS is achieved.
5. Neutralize the remaining solution in the shot glass with ascorbic acid and dispose of it.
👉 The result: approx. 0.32% CDS – though with a slightly acidic pH (~5).
⚠️ Important Note:
Chlorine dioxide gas is produced during the reaction. Please always work in well-ventilated areas and do not inhale the gas!
ConclusionThe pickle jar method works—but it has some drawbacks (acidic pH, potential contaminants from spray mist, limited shelf life of the sealing ring).
For maximum purity, we recommend our high-purity CDS-Products.
SafetyUFI Technical Sodium Chlorite: C600-T03S-200S-6PYX
Sodium chlorite
GHS05 GHS07 GHS09 Hazard
H290: May be corrosive to metal.
H302: Harmful if swallowed.
H318: Causes serious eye damage.
H373: May cause damage to organs through prolonged or repeated exposure.
H410: Very toxic to aquatic life with long-lasting effects.
P102: Keep out of the reach of children.
P280: Wear protective gloves, eye protection, and face protection.
P405: Keep under lock and key.
P305 + P351 + P338 IF IN EYES: Gently rinse with water for several minutes.
Remove any contact lenses, if possible. Continue rinsing.
P501: Return partially emptied containers to the point of sale or take them to a hazardous waste collection site.
EUH031: Releases toxic gases upon contact with acid.
UFI Technical-Grade Hydrochloric Acid: CS00-A0XJ-7008-U32D
Hydrochloric acid
GHS05 GHS07 Hazard
H290: May be corrosive to metal.
H314: Causes severe skin burns and serious eye damage.
H319: Causes serious eye irritation.
H335: May irritate the respiratory tract.
P102: Keep out of reach of children.
P280: Wear protective gloves, eye protection, and face protection.
P234: Store only in the original packaging.
P390: Clean up spills to prevent property damage.
P405: Keep under lock and key.
P305 + P351 + P338 IF IN EYES: Gently rinse with water for several minutes.
Remove any contact lenses, if possible. Continue rinsing.
P501: Return partially emptied containers to the point of sale or take them to a hazardous waste collection site.
Data SheetsSafety Data Sheet for Sodium Chlorite (NaClO₂) 24–26%Technical (MSDS)
Safety Data Sheet for Hydrochloric Acid (HCl) 4%Technical (MSDS)
Delivery & ShippingWe ship to customers in Switzerland and the Principality of Liechtenstein.
MYCHEM.CH’s shipping and payment terms are described in detail during the ordering process. Special shipping methods requested by our customers are subject to a surcharge in accordance with local rates.
Ordered items are shipped as quickly as possible, subject to availability. More specific delivery times are displayed for each item and at the end of the ordering process.
If an item is unavailable, we will notify the customer immediately. If failure to meet a delivery or performance deadline is due to force majeure, unforeseeable obstacles, or other circumstances beyond our control, the deadline will be extended appropriately. If the inability to deliver is due to the manufacturer’s or our supplier’s failure to fulfill their obligations, both we and the buyer may withdraw from the contract provided that the agreed-upon delivery date has been exceeded by more than 3 weeks.
Shipping Costs/Free Shipping
Shipping costs are calculated based on weight and shipping method and are listed separately during the ordering process.
For orders with a net merchandise value of CHF 100.00 or more, shipping via “PostPack Priority” or A-Post is free of charge.
General Notes: No shipping costs apply
for in-person pickup.
Special deliveries by arrangement.
Packaging
Costs: The costs of standard factory packaging are included in the price. If special packaging is requested or is necessary for the safe shipment of an item, the corresponding costs will be billed.
Delivery Area
Our items can only be delivered within Switzerland and Liechtenstein.
International deliveries for larger quantities are subject to separate agreement.
