Home made D76 with raw chemistry?

Bill Burk

Subscriber
Joined
Feb 9, 2010
Messages
9,312
Format
4x5 Format
Wolfram Malukker said:
Hydroquinione is a "dangerous chemical" and is "restricted for transport" because of it's toxicity to aquatic life, NOT necessarily human life.

It's because when you spill it into a lake, it kills *everything*. Not because it kills *you*.
Click to expand...

NIH has a nice write up about it. Mentions catechol so I guess other developing agents like Pyro may also raise the same concerns.
 

Bill Burk

Subscriber
Joined
Feb 9, 2010
Messages
9,312
Format
4x5 Format
Mallinckrodt Chemical Works - The Chemistry of Photography - 1940

A little sulfite. “it is general practice”.

So I guess this has been known more than a hundred years.

 
You must log in or register to reply here.
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…