Replacement for HFE-7100

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josher89
Posts: 509
Joined: Mon Aug 21, 2006 10:32 pm
Location: NE USA

Replacement for HFE-7100

Post by josher89 »

https://www.forensicmag.com/596793-Rese ... hased-Out/

I've spoken with Robert Ramotowski about this a few years ago and I haven't done much follow-up. Has anyone looked at replacements for this solution? I don't want to wait three years for this research team to come up with a solution.

A quick google search shows this product as a replacement that doesn't appear to have all of the hazards that Novec solution does:

https://www.brulin.com/product/solvanta ... novec-7100

Wonder if it's time to start looking for alternatives...
"...he wrapped himself in quotations—as a beggar would enfold himself in the purple of emperors." - R. Kipling, 1893
jwes90
Posts: 5
Joined: Tue Jan 05, 2021 2:28 pm

Re: Replacement for HFE-7100

Post by jwes90 »

This was the first I had heard of it.

Also, did a search for alternatives to HFE-7100, and there looks like there are quite a few companies that advertise a chemical that can replace it.

A few years back, we did a comparison study of some different Ninhydrin formulas, and found a heptane formula (borrowed from what Virginia Department of Forensic Science had at the time) that seemed to be comparable to our HFE formula. We didn't test though how it handled different types of inks.

But we use HFE in most of our porous reagents, (DFO, IND, ZnCl, NIN, Thermal Paper Destaining Solution), so we will either have to find an alternative to HFE-7100 or find comparable formulas using different reagents for all of our porous processes.
orrb
Posts: 39
Joined: Wed May 14, 2014 6:48 am

Re: Replacement for HFE-7100

Post by orrb »

We had a chance to experiment with SolVantage® Final Rinse. We had no issues with it. I seemed to perform just as well as HFE7100. Did not do a full study. Still working with it. About $500.00 a gallon. The distributor gave us a gallon to work with.
B. Orr
SConner
Posts: 145
Joined: Wed Mar 04, 2009 11:06 am

Re: Replacement for HFE-7100

Post by SConner »

We have recipes using acetone, petroleum ether, and HFE7100. Okay, yeah the top shelf stuff might not be available much longer but the well mixes are effective enough.
Shane Turnidge
Posts: 81
Joined: Thu Jul 21, 2005 11:55 am
Location: Canada

Re: Replacement for HFE-7100

Post by Shane Turnidge »

I might have said it before but in Toronto in the early 1990's we were using Vertrel XF very successfully to replace HFE.
It had the advantage of not discoloring thermal paper too badly and it did not cause inks to run.
The only disadvantage was that it required good PPE.
You're only as good as your last Ident.
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