[alt-photo] Re: Casein structure

[Christina Anderson]

Marek,
Just mixed in stock pigment solutions. Using at once, I am sure it is all fine, because the red iron oxide was fine for weeks. And it is a great color to use.
Christina Z. Anderson
christinaZanderson.com

On May 3, 2011, at 12:00 PM, Marek Matusz wrote:

> 
> Chris,
> Is the red iron oxide unsuitable because it does ot mix well, or somehow reacts with casein making it unsensitive to dichromate? I am using watercolor (Daniel SMith) tubes. SO far a few pigments that I tried seem to be OK for a mix and use at once method. I have not done stock pigment solutions yet.
> Marek
> 
>> From: zphoto at montana.net
>> Date: Sun, 1 May 2011 19:52:19 -0400
>> To: alt-photo-process-list at lists.altphotolist.org
>> Subject: [alt-photo] Re: Casein structure
>> 
>> Marek,
>> One more pigment bit the dust for a stock mix: red iron oxide, as Alberto predicted. However, it took another week or so longer than nickel azo yellow. So far all others are still usable since starting with casein testing end of Feb.
>> Chris
>> 
>> Christina Z. Anderson
>> christinaZanderson.com
>> 
>> On Apr 29, 2011, at 1:34 PM, Marek Matusz wrote:
>> 
>>> 
>>> 
>>> 
>>> Casein fanatics
>>> Found this nice picture of the alpha casein molecule.
>>> http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=134288
>>> 
>>> All those beautiful amino acids forming a peptide molecule.
>>> This casein chemistry is definitely going to be fun.
>>> Marek 
>>> _______________________________________________
>>> Alt-photo-process-list | http://altphotolist.org/listinfo
>> 
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