U of S | Mailing List Archive | alt-photo-process-l | Re: glutaraldehyde source

Re: glutaraldehyde source



Cameron,
$200 for 500ml!!!! Wow that is ridiculous. And you DON'T, as Ryuji says, want to handle concentrated amounts unless outdoors. I bought the 25% and poured it in enough water to dilute to 2.5% immediately, outdoors, downwind, gloves on, way far from my face.

This looks like Maxicide I got from a med supply warehouse, although mine was 2.5%. I only use 6-24ml per liter of the stuff, so a gallon would last you years--hope you have 10 friends to split it with over the next 18 months of shelf life....

When I bought a quart of Maxicide it was about $12 or so, so $23 is a good price.

Last time I had to size 60 16x20 sheets of paper so I actually tray sized with gelatin all sheets and then the following day I did a big tray of glut outside to harden the sheets. This worked very well and minimized any toxicity inside the house (hung them to dry outside in garage). It was cold outside still, even, and that did not hurt anything, but when doing the same with formaldehyde outside and then bringing the sheets into the warm house, they totally outgassed and stung my eyes, but I've already shared that story here.
Chris


----- Original Message ----- From: "Cameron Young" <cameronyoung@cameronyoung.com>
To: <alt-photo-process-l@usask.ca>
Sent: Monday, June 30, 2008 2:23 PM
Subject: glutaraldehyde source



I am looking for a source for glutaraldehyde here in Canada. My local
chemical supplier claims they can only get me "certified" grade at $200 for
500ml.

While looking at other options, I found this online:

http://amaxsupply.com/shop/product_info.php?products_id=134

This seems to be similar to the Maxicide that Chris recommended a while back.
Do you think this would work for hardening gelatin and if so, at what ratio?

Thanks

Cameron