Purple sofnolime

[CraigP]

Can someone please tell me why my sofnolime in my scrubber is sometimes purple, and other times just the normal colour when I change it. It all comes from the same drum.

Craig

[Kent Tooling]

Originally Posted by CraigP

Can someone please tell me why my sofnolime in my scrubber is sometimes purple, and other times just the normal colour when I change it. It all comes from the same drum.

Craig

Blaniad have you been near Craigs tub of lime with your hair dye. because you turned the sea that colour on Tuesday

[Kent Tooling]

Sorry Craig i can not help you on this one but some one will be along shortly who knows the reasons for this.

I have never had this or evern heard of this either

John

[Louby Lou]

Originally Posted by CraigP

Can someone please tell me why my sofnolime in my scrubber is sometimes purple, and other times just the normal colour when I change it. It all comes from the same drum.

Craig

Craig

What lime are you using? Is it the colour-changing sofnolime by per chance? Where you not told about the different types of lime on your course and the colour changing type? We covered this as part of my course with Gary Fox last year.

The purple is an indication that the "scrubbing reaction" has occured, basically the colour change occurs during the reaction, and therefore you can visualise where the reaction front is up the stack, not particularly any good on the Inspo or Evo, but on the Meg you can see it nicely.

We have a picture on Rebreatherworld of the lime shown in a Meg canister

It is available to buy through Molecular Products.

HTH

Cheers

Lou

[CraigP]

Lou

Yes I have heard of the colour change type but I wasn't aware I had that type. Its the 1-2.5mm granules. My point was Ive changed the scrubber about 5 times from this container and on two of those occations some of the granules had gone purple, on the other 3 they had remaned their normal colour. On all occations there was 3 to 4 hours use on the scrubber.


Craig

[Phoenix]

Originally Posted by CraigP

Lou

Yes I have heard of the colour change type but I wasn't aware I had that type. Its the 1-2.5mm granules. My point was Ive changed the scrubber about 5 times from this container and on two of those occations some of the granules had gone purple, on the other 3 they had remaned their normal colour. On all occations there was 3 to 4 hours use on the scrubber.


Craig

I'm not 100% sure but I think the lime can revert to normal colour after a few days so maybe it depends on how soon you change it.

Ian

[NotDeadYet]

Ian,

it does indeed change back to white fairly quickly, less than a few days as I remember.

I used to use it because Divex used to do it quite cheap (not any more).

[CraigP]

Ok I've a confession to make as a very last resort I did read what it said on the drum (i.e. instructions) and it is indeed of the colour change variety (white to violet). My next question as already been answered as to why sometimes it’s white and sometimes violet; it is possible that I changed the scrubber soon after use on the occations it was violet. It’s a shame really because I was becoming to think I was some sort of gas god who could choose whether or not to produce carbon dioxide. Oh well its not so bad being a mere mortal, thanks for your replies.


Craig