Hubl's Paste

[removedacct3]

I am considering to mix my first batch of Hubl's Paste. Since it will be my first batch I do not know what to expect ... it will be creamy. Can I use a magnetic stirrer? Or should I use other tools? What are the best tools to thoroughly mix Hubl's Paste?

Thanks for reading!

 

[NickLimegrove]

> What are the best tools to thoroughly mix Hubl's Paste?

According to several sources I've come across: heat.
Anchell/Troop (like most others) specify »hot water«, meaning 54°C. Others* suggest heating it up to > 95°C.

Here's two different versions of it. Be prepared for not being able to dissolve that sludge completely.
http://www.frugalphotographer.com/info-formulary-general.htm

If you have trouble mixing it, you might try a less concentrated version given in Eder, »Rezepte, Tabellen« (1950s):

50 g Sodium Sulfite (cryst.), dissolve in
80 ml water (hot), add
20 g Glycin, slowly add
100 g Pottasium Carbonate

...which »should make about 150 ml of thin mush. If you end up with less than 150, too much water has evaporated; just add it again. Decent shelf life. Shake well before using. 1+15 dilution for normally-exposed plates. You may also put 5 ml into air tight bottles, add water to make 80 ml of ready-to-use developer. Yields very soft negatives when diluted further. Dev time ~6 to 12 mins. Multiple plates can be developed using one shot.«

guten Appetit
-- Nils

_____

*) http://www.clayharmon.com/TRIGGER/download/download?file=/assets/file/formulary1.pdf&as=/assets/file/formulary1.pdf

 

[Gerald C Koch]

The formulas that I have read at recommend grinding the chemicals together in a mortar. The developer is a suspension and not a solution so I doubt that heating things would help. Once the paste would cool you would be back to large crystals that would need grinding again.