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Expiry date on Sodium chlorite and Hydrochloric acid? 16 Aug 2023 23:50 #79714

  • Patrick209
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I have a couple of bottles of Sodium chlorite and Hydrochloric acid that have been kept for three years in my fridge, away from sunlight at a temperature of around 5c.
Can anybody tell me if these can still be used, or are they now too old?
Patrick 

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Expiry date on Sodium chlorite and Hydrochloric acid? 17 Aug 2023 18:01 #79715

  • BobJ
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In my opinion, I would mix a 3 drop of activated solution in a tilted glass. Wait a minute or so, looking for the amber color, wave your nose close to the glass, and inhaling slightly for the sharp smell. If it does all that, personally I would use it.
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Expiry date on Sodium chlorite and Hydrochloric acid? 18 Aug 2023 15:53 #79725

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Or even a bigger amount like 7 drops, so you can really see the colour of the liquid.

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Expiry date on Sodium chlorite and Hydrochloric acid? 18 Aug 2023 23:49 #79732

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I've now followed Andreas Kalcker's instructions and made CDS.
The colour looks right and the smell is potent.
Is there any potential danger to my health if I try a couple of drops diluted in 100ml of water?

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Expiry date on Sodium chlorite and Hydrochloric acid? 21 Aug 2023 23:23 #79761

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Thank you Bill Pop.
I live in the Philippines so I'll try to find these strips locally if at all possible.

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Expiry date on Sodium chlorite and Hydrochloric acid? 22 Aug 2023 04:19 #79762

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Thank you Bill Pop.
I live in the Philippines so I'll try to find these strips locally if at all possible.

 

You can buy them from Amazon here: www.amazon.com/LaMotte-3002-Chlorine-Dioxide-0-500ppm/dp/B07NLGS5XH/ref=sr_1_5?crid=1WCNUI3UE0JUJ&keywords=lamotte+chlorine+dioxide+test+strips&qid=1692677727&sprefix=lamotte+chlorine+%2Caps%2C364&sr=8-5

Remember you can cut each strip in half to give you double the amount of strips!

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