Re: Kallitype made!

Claude Seymour (cseymour@cap.gwu.edu)
Fri, 2 Sep 1994 14:27:50 -0400 (EDT)

I think the dichromate is a carcinogen or a mutagen. It can also cause a
rash. I would use gloves and a respirator when mixing everything and wash
up _thoroughly_. I would also get a dedicated darkroom a.s.a.p.

Claude Seymour

On Fri, 2 Sep 1994, Adam Kimball wrote:

> Yes. My first Kallitypes came through without much of a hitch ;-)
> No terrible stains. No awful spots. They are lacking in contrast,
> but my negs aren't in the greatest shape. Fun stuff.
>
> But on a serious note. I have set up my darkroom in my kitchen, and
> have been wondering whether this is a safe thing or not. Let me
> list the chemicals and volumes in the components, and maybe some
> chemist can help me out
>
> Developer
> Sodium Acetate 100g
> Water 1 L
> Tartaric Acid 3g
> Sodium Dichromate (2%) 8ml
>
> Clearing Bath
> EDTA 15g
> Water 1 L
>
> Fixer
> Hypo 30g
> Water 1L
>
> Any of this stuff sound too bad? I wasn't planning on using the
> kitchen sink for this stuff, but invariably it happened-
> and I'm sure it could happen more. I've considered taking a piece
> of plywood which spans the length of my kitchen counter and putting
> the trays on top of this. Right now I'm working directly on the
> kitchen counter- I know this couldn't do me any good.
>
> As for ventilation. I'm going to limit myself to working at night,
> that way I can keep the windows open, and use a fan to ventilate the room.
>
> Let me know, and I'll keep y'all informed about the process.
>
> Adam
>