Did you add the H2O2 to the batches at the same relative time after the
CS had been made? In other words, did one batch cure longer than the
other before you added the H2O2? Someone has indicated that the
reaction of the CS to H2O2 is different depending on how fresh the CS is
or how long the CS has cured.
On the new brew, perhaps try taking smaller batch quantities and adding
H202 to these smaller quantities at different times relative to when the
CS was made. EG, using the same brew:
Batch 1 has H2O2 added immediately after it has been made.
Batch 2 has H2O2 added 3 hours after it has been made.
Batch 3 has H2O2 added 6 hours after it has been made.
Batch 4 has H2O2 added 9 hours after it has been made.
Batch 4 has H2O2 added 12 hours after it has been made.
Batch 5 has H2O2 added 24 hours after it has been made.
and so on...
Dan
------------------------------------------------------------------------
Subject: CS>EIS and H2O2
From: Marshall Dudley <[email protected]>
Date: Thu, 29 Dec 2005 19:44:02 -0500
To: [email protected]
To: [email protected]
OK, I am totally buffaloed now. I have made two 5 gallon batches and
added H2O2 to them. Everything is as close to identical between them as I
can get, but the reactions were totally different.
Batches were produced as follows:
Initial pH of water = 6.8
electrode area = 48 square inches each .999 silver plates
current = 38 mA
voltage ran typically 15-16 volts during making it
continuous stirring, and polarity reversal at one minute per half cycle.
Silver content estimate from conductivity measurements 20 ppm
both were crystal clear, and measured 16.5 uS.
both batches made at about 62 degrees F.
tyndall was faint
did not measure pH before adding H2O2
Added .5 teaspoon H2O2 per gallon, IE 2.5 teaspoons of 3% to 5 gallons to
give 17 ppm
First batch tyndall stayed faint, maybe even became fainter -
conductivity measured 16 uS essentially unchanged
Second batch tyndall became strong, EIS has a slightly cloudy look, but
no color, conductivity 9.5 uS approximately halved.
Both batches measure a pH of about 7.6 after adding H2O2. Adding H2O2 to
distilled water gives a pH of 6.8 unchanged from plain DW.
Taking samples of the second batch I did the following:
Heated it, cloudiness and tyndall stayed the same, indicating that it was
no silver chloride or silver oxide precipitant since the solution limit
goes up when you heat it.
Diluted it by 50%, tyndall approximately halved, indicating once again
that the cloudiness is NOT a silver compound with limited solubility
Added another 50 or so ppm of H2O2, no change. Added 500 or more ppm of
H2O2 and it cleared up. I have no idea what that means.
Added ammonia (ammonium hydroxide), tyndall did not change, proving that
the cloudyness is from colloidal particles not from any molecular
compounds of silver precipitated.
Checked for color, none noted, meaning that the particle size is either
very small, so the absorption is in the uv range, or very big so the
absorption is in the infrared range. Strong tyndall implies large
particles though. Will let sit for 24 hours and see if anything
precipitates out, if we have large particles I expect to see it clear
upon sitting.
I am making another batch now. Before adding the H2O2 to the entire
batch, I plan on adding it to a few ounce a drop at a time and try to
figure out some more if the 3rd batch clouds up.
Marshall
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.9/216 - Release Date: 12/29/2005
--
The Silver List is a moderated forum for discussing Colloidal Silver.
Instructions for unsubscribing are posted at: http://silverlist.org
To post, address your message to: [email protected]
Address Off-Topic messages to: [email protected]
The Silver List and Off Topic List archives are currently down...
List maintainer: Mike Devour <[email protected]>
