(no subject)

Hi Maria,
I just keep on adding the ammonium dichromate to distilled water until
it won't dissolve any more. Then I know I have a saturated solution.
Note: I just add small amounts to a watertight bottle, put the lid on
tightly and shake. It takes a little while for the salt to dissolve.
Once it has dissolved, then I add more and do the same thing. Eventually
it won't dissolve and some crystals will remain in the bottom of the
bottle. Please be careful not to breathe in any of the crystals or get
them on your skin. Don't do it anywhere near a food area, and always
wear golves and apron or labcoat, goggles (to stop small amounts getting
in through eyes) and a face mask, preferably a filter one.

Kate

-----Original Message-----
From: Marek Matusz [mailto:marekmatusz@hotmail.com]
Sent: Monday, 12 September 2005 5:23 a.m.
To: alt-photo-process-l@sask.usask.ca
Subject: Re:

Maria,
I mix a 30% ammonium dichromate solution (this is close to saturated
solution). My typical gum mix is 6cc of 14 baume gum with whatever
pigment,
6 cc of water and 2cc of ammonium dichromate solution. As yu can see I
measure everything by volume.
Somebody was asking about kalium, it is potassium.
Marek, Houston

>From: maria ahlberg <mariaahlberg13@hotmail.com>
>Reply-To: alt-photo-process-l@sask.usask.ca
>To: alt-photo-process-l@sask.usask.ca
>Subject: Re:
>Date: Sun, 11 Sep 2005 11:38:34 +0000
>
>I am curious because i have never used ammonium salt and now i have i
>friend who can get me ammonium salt and then it´s new for me, a have
never
>worked with ammonium salt.
>I would be glad for some instructions howe to mix this salt with.
>Maria
>
><BLOCKQUOTE style='PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT:
>#A0C6E5 2px solid; MARGIN-RIGHT: 0px'><font
>style='FONT-SIZE:11px;FONT-FAMILY:tahoma,sans-serif'><hr color=#A0C6E5
>size=1>
>From: <i>Joe Smigiel &lt;jsmigiel@kvcc.edu&gt;</i><br>Reply-To:
><i>alt-photo-process-l@sask.usask.ca</i><br>To:
><i>alt-photo-process-l@sask.usask.ca</i><br>Subject:
<i>Re:</i><br>Date:
><i>Sat, 10 Sep 2005 19:44:00 -0400</i><br>&gt;Mariah,<br>&gt;<br>&gt;I
>believe you will find most practitioners on this list usually use
>the<br>&gt;ammonium salt. I prefer the kallium (potassium) salt
>however.<br>&gt;<br>&gt;May ask ask why you are
>curious?<br>&gt;<br>&gt;Joe<br>&gt;<br>&gt; &gt;&gt;&gt;
>mariaahlberg13@hotmail.com 09/10/05 1:33 PM &gt;&gt;&gt;<br>&gt;I am
>wondering if there is anyone on the list who uses
>ammonium<br>&gt;bichromate<br>&gt;instead of kalium in gum
>printing.<br>&gt;Maria Ahlberg
>Sweden<br>&gt;<br>&gt;<br>&gt;<br></font></BLOCKQUOTE>
>
>

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