Sigma-Aldrich technical grade 25% sodium chlorite solution

drdavid
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28 Sep 2021 09:51 #71399 by drdavid

Sigma-Aldrich technical grade 25% sodium chlorite solution was created by drdavid

Hello, is it ok to use the technical grade 25% sodium chlorite solution from Sigma-Aldrich instead of making the MMS from sodium chlorite flakes?

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mart1n
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01 Oct 2021 08:30 #71485 by mart1n

Replied by mart1n on topic Sigma-Aldrich technical grade 25% sodium chlorite solution

Sigma Aldrich was taken over by Merck. I don't know whether this made a difference in the composition of the so called 20% of "stabilizing salts ". But you may want check and compare data sheets from several products and pick the one with the least toxins.
I found my Sigma Aldrich NaClO2 to contain a long list of stabilizing "salts" that are rather toxins, heavy metals and more. I will still use it but only to make CDS.
It may be that any toxic substances in these stabilizing salts are being neutralized in the process of generating chlorine dioxide.

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dragon88
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01 Oct 2021 17:27 #71493 by dragon88

Replied by dragon88 on topic Sigma-Aldrich technical grade 25% sodium chlorite solution

hello mart1n you seem to have good knowledge about chlorine dioxide related stuff! I am having difficulty to find a more pure version of Hcl I don't want to buy HCL from hardware store because of impurities in it. I appreciate if you know where to buy ACS or Reagant grade HCL . Appreciate your help.

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Gyuri
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01 Oct 2021 18:14 #71494 by Gyuri

Replied by Gyuri on topic Sigma-Aldrich technical grade 25% sodium chlorite solution

I bought 37% HCL on ebay .Just needed to reduce to 4%

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Gyuri
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01 Oct 2021 18:16 #71495 by Gyuri

Replied by Gyuri on topic Sigma-Aldrich technical grade 25% sodium chlorite solution

Ebay search : food grade hydrochloric acid

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mart1n
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01 Oct 2021 23:36 #71499 by mart1n

Replied by mart1n on topic Sigma-Aldrich technical grade 25% sodium chlorite solution

wrote:
I am having difficulty to find a more pure version of Hcl I don't want to buy HCL from hardware store because of impurities in it.

Sorry can't help you with that. I went from using citric acid to hardware store HCL long ago. Probably not the purest form of HCL compared to decent food grade or pharmaceutical grade but it works. We call it "salt acid" where I am. That would be muriatic acid in English I guess. Nowadays I'm not sure if I would pay for and prefer made in china pharma grade over more locally manufactured muriatic acid sold in hardware stores.
I do stay away from muriatic acid that has added color.
Not quite what you asked for but mentioning in case there are people reading that soon may be unable to shop online.
Another option is extracting pure HCL from muriatic acid: www.mmsinfo.org/infosheets/hcl_from_muriatic_acid.pdf

.

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Sigma-Aldrich technical grade 25% sodium chlorite solution

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