Caution to all CDS makers...

I recently received some information that I thought was worth sharing:

About a week ago, we decided to add a scrubber to our CDS creation process. And so we set everything up, set things off and let chemistry do its thing. Everything looked good, as MMS in the scrubber eventually turned dark(activated) and so we let it run until their was no longer any reaction coming from the line. And so we I dismantled and submerged the system into a sink filled with water(to reduce smell). and then it happened... After a few moments we heard a loud bang and an explosion of water followed by smoke that smelled like that of burned components. Needless to say, we were completely baffled as to what had just happened and so we vented out the room and began investigating things.

So here we were on our hands in knees looking around the floor for the parts when all of a sudden what can only be described as a glob of molten tubing fell right in front of us! As it turned-out, it was handing off the ceiling. Anyways... after careful examination, we discovered that the air stone as they are called became clogged and the activated MMS from the scrubber pressurized the system leading to the inevitable.

Having said all that, were not having second thoughts on the use and effectiveness of air stones in the process. However if you must use one, then I'd highly recommend limiting them to a one time use so as to avoid any type of clogging to avoid such complications.
As for the effectiveness of the scrubber, were still not sure how helpful it is at this time.

Hope this helps.
STLittle

Been there done that


www.genesis2forum.org/index.php?option=com_kunena&func=view&catid=51&id=10565&Itemid=66#10565

I am a luddite, will admit it up front.
I made CDS today, used no scrubber, used no bubblers,
Used 30ml of each MMS and CA, and tried to keep it at just "boiling" (the hot plate cycles), testing strips, and 2 8oz baby bottles to receive in.

I made two 8oz bottles of 6000ppm/L of CDS - I did the first one (kept watching for color and testing every so often) - then moved a second bottle into position for the second. The second took a lot longer than the first, but it was OK. I did it all on the stove and ran the stove vent the entire time. - so no gassing issues.

When I was finished there was a very little yellow left in the mixing bottle ( I could have run it longer, but I was also dealing with running an equalizing charge on my solar batteries, plus watering the batteries, and just did't want to be away from the CDS process that long).

I only use Andreas Kalcker's original method for making CDS.
It never fails

Cheers,
-Karl

Steve, I have got to ask. I have heard mention many times of useing a scrubber with making CDS. But I am not able to find out what a scrubber is. I simply do not know.

Hi,
WOOFY

SCRUBBER = A purifier that removes impurities from a gas.




This is an arrangement of serial gas bubblers as well as a 50ml glass reservoir. A researcher needed the array for scrubbing radioactive material from gas. The assembly needed to self-align within a hood for (obvious!) safety reasons.We fitted the bubblers with 18/9 ball and socket joints for lots of flexiblity, and flat discs for the bases to help increase stability and assure alignment.

The purpose of a scrubber or gas-washing bottle is to scrub the gas such that the liquid absorbs one (or more) of the gaseous components to remove it from the gas stream, effectively purifying the gas stream.

The same thing happened to me this weekend. Surprised the hell out of me.....