Re: A Dumb Gum/dichromates

Jonathan Bailey (quryhous@midcoast.com)
Wed, 25 Jun 1997 08:01:05 -0400

At 10:48 PM 6/24/97 -0400, Judy Seigel wrote:
>
>
>> Ammonium dichromate will lose from 10 to 20% speed in a year's time, so
>> > that is not the cause, either.

>My point wasn't about how "to maintain the speed of dichromate", but what
>happens to the speed of dichromate that has just sat on the shelf for a
>long period of time, which was what Bob was wondering about.

Greetings-

Does this loss of speed and light sensitivity also apply to dichromate on
the shelf in *powder* form, or only after mixing?

Thanks-

Jon