You have nothing if not tenacity Neville! Well done - I will be very interested to see the outcome...dee
Sent from my iPad > On 5 Oct 2014, at 03:03, Neville <one.red...@hotmail.com> wrote: > > Just a quick update on this. > > I decanted and cleaned that container out *again* several days ago before > returning the solution to the container. Now here it is several days later > and that spot is reappearing - yet again! > > This is truly bizarre? > > BUT...!! I think I have worked out what's going on. Like an idiot I used > litmus paper to check Ph - but tested it in my storage vessel instead of > pouring a small amount into something else for testing. I believe the paper > has released something into the solution. If paper is held in the water for > just a couple of seconds a blueish mist emanates from the paper into the > water, this would obviously now be a contamination introduced into the water, > this also I believe is causing the milkiness as some form of compound has now > developed. > > I'm now in the process of doing some back yard bush experimenting to isolate > the problem. Another update in a couple of weeks perhaps. > > Have to say, if I stand on tip toe and stretch my arm really hard I can just > manage to touch the bottom rung of that knowledge ladder <g>. > > From: one.red...@hotmail.com > To: silver-list@eskimo.com > Date: Tue, 30 Sep 2014 11:08:08 +1030 > Subject: CS>Something interesting for the chemist or physicist? > > > milky with extremely strong TE, and the storage vessel had a dark spot in > the centre on the bottom. > > I decanted solution through a coffee filter {which I have never had the need > to do before, and as it turns out didn't need to this time as nothing was > left behind to my recollection} and wiped the bottom of vessel clean before > returning solution to the same vessel from whence it came. This batch had > probably been in storage for a month. > > I checked it the other day and that dark spot was back? > > I repeated the aforesaid procedure, minus the filtering. > > Checked again a couple of days later and that dark spot had returned yet > again - What the...??? > > N. > >