RE: preservative for gum.

15% is the solution of the carbolic acid.
thank you.

-----Mensaje original-----
De: Christina Z. Anderson [mailto:zphoto@bellsouth.net]
Enviado el: sábado, 28 de febrero de 2004 17:15
Para: alt-photo-process-l@sask.usask.ca
Asunto: Re: preservative for gum.

200 ml of gum solution could use as little as 7 drops of carbolic acid, but
what you're doing is fine.
Is "15%" referring to your gum solution or your acid?
Chris

----- Original Message -----
From: "JUAN MIGUEL JUSDADO" <jusdado@teleline.es>
To: "FOTOALTERNATIVA LISTA CORREO" <alt-photo-process-l@usask.ca>
Sent: Saturday, February 28, 2004 3:42 AM
Subject: preservative for gum.

> Thanks to all those that have answered to my question.
> It is up to now the first time that I prepare gum solution, it had used a
> mark of paste, but they should have changed the formula because he/she no
> longer works well.
> I have decided to use 2 drops for oz of solution of carbolic acid to 15%
as
> preservative in this my first experience. If the mathematics don't lie,
200
> ml. of gum solution they can be equal to 6.5 oz, with what I will put 13
> drops of carbolic acid in my gum solution.
> If it is not this way the calculation, please correct me.
> Pardon for my English, text translated by computer.
>
>
Received on Sun Feb 29 01:18:12 2004