BIODIESEL & SVO DISCUSSION FORUMS





Sponsors    Biodiesel and SVO Forums Home    Forums  Hop To Forum Categories  Biodiesel  Hop To Forums  Making Biodiesel    Tips for keeping KOH dry...

Moderators: Shaun, The Trouts
Go
New
Find
Notify
Tools
Reply
  
Tips for keeping KOH dry...
 Login/Join
 
Member
posted
I make 25 gallons of biodiesel every weekend for 6 months out of the year. I have a 100 pound drum of KOH that is now 2 years old and almost done. It's a sealed drum, which I open briefly when I am mixing a batch and I always seal it up tight when I am done.

Lately it seems that my 3/27 tests are showing signs of decreased levels of conversion. (I have more and more small bubbles of un-processed oil at the bottom). It appears that as the level of KOH in my drum goes down and the amount of air in the drum increases, the more problems I am having. I have a theory that my KOH is absorbing moisture and creating problems.

Does anyone have tips on keeping KOH dry? I am thinking of putting my next order of KOH in pre-weighed zip lock bags and using them as needed. Is that a good idea? I hate to throw away KOH. It's expensive!
 
Registered: July 24, 2006Reply With QuoteReport This Post
member

posted Hide Post
Pre-weighed baggies are an excellent idea!
Just make sure to get the freezer burn ones so that they'll really lock out the air.

The other method you can use is a twist on lid like this:


I learned about these at a local food storage place a long time ago & liked them so much I started selling them on my site. I'm sure you can find them locally too.

I have a 5 gallon bucket that I attached one to and that's where my KOH goes. Each time I use the KOH, I reseal the bucket good & tight.

I had some KOH that'd been in the bucket for well over 2 years a while back & found it still worked great when a friend of mine borrowed some to make a batch with.

You can also get those small little containers & put them in it as well.
It's one of the way we sell chemicals.


I have a 2 lb'er here that I've had for quite a while and it continues to seal extremely well when I occasionally dip into it for demo batches.


Pre-sealed baggies in a 5 gallon bucket with one of these self-sealing twist off lids or using some small jars would probably do the trick nicely! I've also been known to store KOH in mason jars with self-sealing lids as well.

Just be sure you clearly mark your containers though so no one thinks they're instant mashed potatoes or something like that.

Hope that helps...

-Graydon




Utah Biodiesel Supply - Biodiesel Supplies, Parts, Kits, Tutorials, Decals & More
Utah Biodiesel Supply Blog - Tutorials, Articles, Pictures, & New Products!
Free Biodiesel Tutorial Videos - Learn to make Biodiesel through videos!
Utah Biodiesel Facebook Page - Stay up to date on all things Biodiesel!
 
Location: Utah | Registered: October 08, 2004Reply With QuoteReport This Post
member
posted Hide Post
I bought a case of KOH a few years ago, it came packaged in standard 1 quart tin paint cans with the mash-on lids, each can holds over 2 pounds. I am still reusing these.
 
Location: fisher,illinois,usa | Registered: June 03, 2003Reply With QuoteReport This Post
member
posted Hide Post
I use 5 gallon paint cans. They have a sealed lid. Given the rainy weather here in the Seattle area, I've left them out all winter and the KOH inside was bone dry every time I opened them.


Illegitimi Non Carborundum
 
Location: Utopia Planitia | Registered: February 25, 2005Reply With QuoteReport This Post
member

posted Hide Post
Ah, yes, keeping your powder dry. When I open the bag it is with the express purpose of finishing the job, and that job is to pre-weigh the lot into zip-lock bags and then I seal these in an air tight bucket. When I need to use it I pop open the lid (and no air contact) pull out a baggie and that's it.

When doing the original filling of the baggies I make sure I am in a room that has had the air conditioner on for a couple hours (air conditioners dry out the air). That way I am not rapping a bunch of humidity in each bag.

HTH



** Biodiesel Glycerine Soap - The Guide
- on 5 continents helping people make & sell soap from the Biodiesel Glycerine.


 
Location: :-) Great White North eh ? | Registered: December 10, 2004Reply With QuoteReport This Post
member
posted Hide Post
I do it much like Legal except that my five gallon paint cans holding the pre-weighed zip lock baggies go into a refridgerator (compressor died) wth dessicant. The refer still has a good seal and the dessicant keeps the moisture down to close to nil.

Even with all these precautions I ran into a problem when I got a bag of KOH from my supplier that had a 2007 date on it. The gray looking flakes should have been a clue...


The smell of my exhaust makes me hungry!
www.rwtbiodiesel.com
 
Location: Southern Indiana | Registered: June 26, 2006Reply With QuoteReport This Post



  Powered by Social Strata  
 

Sponsors    Biodiesel and SVO Forums Home    Forums  Hop To Forum Categories  Biodiesel  Hop To Forums  Making Biodiesel    Tips for keeping KOH dry...

© Maui Green Energy 2000 - 2014