The  solution (developer) is not the same colour either. It's a light cyan
and it did not change colour like the other C-41 kit solutions do after the
first film is processed. It remained the same. The others go very dark and
recover slowly over a few hours until they end up only slightly darker than
the original hue. The Bleach/Fix is also a little paler than that from the
other kits.

As the tablets dissolve they crumble into large porous pieces and these in
turn are reduced to grains that don't look too different from those in the
other kits. But solution is much faster. I'll time the next lot. After
mixing I always filter the solutions and with the tablets there was nothing
to be seen in the filters *at all*. There is always some residue with the
other kits; often a dozen or more very small black grains that are almost
like sand.

The bubbling may be a pH phenomenon and the solutions may buffer themselves
after the solids have completely dissolved. But I really have no idea.
People who use the Mini Lab machines may know more about the colour changes.

What does hosed mean?

Don
_______________
Dr E D F Williams
http://personal.inet.fi/cool/don.williams
Author's Web Site and Photo Gallery
See Extra Pages 'The Cement Company from HELL!'
Updated: August 15, 2003

"Oh my God! They've killed Teddy!"

----- Original Message ----- 
From: "Steve Jolly" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, March 14, 2004 5:54 PM
Subject: Re: P: C-41' Tabs' kit


> You're the one with a chemistry MSc, though ;-)
>
> (btw - your website is hosed...)
>
> S
>
> Steve Jolly wrote:
>
> > Dr E D F Williams wrote:
> >
> >> The tabs, about the size of Alka Selzers dissolve with
> >> slight bubbling in no time at all. This tells me that the chemistry is
> >> slightly different because normally the powder takes a while, 5 - 10
mins
> >> with stirring, to dissolve in quite warm water (55C).
> >
> >
> > I don't think it *has* to be a different chemistry - it could just be
> > that the crystals are ground finer before being pressed into tablets
> > than the ones they sell in powder form.  Or something. :-)
> >
> > S
> >
>

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