Makeshift Rodinal: Drano?

[Stephanie Brim]

T'is.

And I'll be buying the chemicals from a supplier, not using Drano. I'll use the Drano to unclog the sink in the bathroom.

 

[avandesande]

Agreed... as you get older you have more money and less time. Any activities that takes away from taking pictures are discarded!

If anybody here would rather just BUY Rodinal, try 'Advantage Imaging', a professional stockhouse in Washigton.

1-866-303-0990

.

 

[jim appleyard]

Just buying things is no fun...you don't get to play with chemicals if you buy things pre-mixed.

Another Evil Scientist!!! )

 

[titrisol]

I found a Sodium Hydroxide powder in LOWES as professional drain cleaner
It is a yellow bottel

 

[agGNOME]

If anybody here would rather just BUY Rodinal, try 'Advantage Imaging', a professional stockhouse in Washigton.

1-866-303-0990

.

Thanks for the tip. Unfortunately, they are out of Rodinal. Nice people though.

 

[Kirk Keyes]

You would have to heat the sodium carbonate to somewhere above its melting point 850 C. I don't think that anyone would want to do this.

I've used both molten sodium peroxide and potassium carbonate in the analysis of concrete and other minerals. When it cools, it solidifies into a hard and hard to dissolve layer in the bottom of the crucible.

I too, would not recommend trying this.

Also, you better use a zirconium crucible, as the sodium peroxide will react and dissolve most other common metals and ceramics.

Kirk - www.keyesphoto.com

 

[glbeas]

Let us not forget the ancient method of making caustic soda from soda ash and slaked lime. Mix them in some water to precipitate calcium carbonate (limestone) leaving sodium hydroxide (caustic soda) in solution. 106 grams of anhydrous or 124 grams of monohydrated sodium carbonate react with 74 grams of calcium hydroxide (slaked lime) or 72 grams of calcium oxide (burnt lime) to make 80 grams of sodium hydroxide.

It's pretty hard to imagine slaked or burnt lime not being available at garden supply stores, or sodium carbonate not being available at swimming pool suppliers.

That sounds like a superior method. I'll have to try it one day. Thanks Pat!