Fellow CS/EISers:

In order to loosely document the effect on PPM when drugstore hydrogen
peroxide (3% H2O2) is added to home-brewed colloidal silver, I
recently made the following test: ---- At the end of one of my larger
batches, 20 ml of H2O2 was added. Batch was stirred continuously
throughout this test. Another 20 ml of H2O2 was added, 10 ml per
addition, at two other times. The below table shows the results:

Date   Time   MicroSiemens (µS)
------|------|------------------------------------------
040407  1800    6.68  (End-of-batch, added 20 ml H2O2)
040407  2100    8.66
040407  2300   10.05  (Added another 10 ml H2O2)
040408  0400   11.31
040408  0600   13.18
040408  1600   15.78  (Added another 10 ml H2O2)
040409  1800   16.15
040410  0630   17.15
040410  1730   17.78
040411  0730   18.37
040411  0930   18.68
040411  1300   18.98
040411  1430   19.07

The resulting increase in PPM was a little startling.

QUESTION -- Does anybody know if it would be detrimental to the
quality of generated CS if this much H2O2 was added to DW at the
beginning of the electrolytic process?

Specifics:

1) Freshly completed, 32 hour batch, PPM = 24.86 (Herx13 spreadsheet)
2) LVDC system, 1 ma current limited, paddle-stirred at 36RPM.
3) RO distilled DW, 5.18 liters, conductivity = 1.78 µS.
4) Anode - spiral of 34", 9999, #12 AWG, Ag wire, 7" submerged.
5) Cathode - stainless steel rod, 1/4" diameter, 7" submerged.
6) Glass generating jar.
7) Benchtop conductivity meter, 0.2% accuracy @ 25C.

Thanks all,

Jimmy Joe

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