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Old 10-12-2019, 01:18 AM
William Ashley William Ashley is offline
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Default Suprised how easy hexamine is to make.



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So apparently formeldahyde and ammonia... and it is an evaporative process??



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Old 10-12-2019, 01:36 AM
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https://www.cdhfinechemical.com/imag...-97-0-MSDS.pdf

It was my first unknown in organic chemistry lab 2. Not a lot of information from tests NMR or IR test. Melting point range was a good indicator.
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Old 10-12-2019, 01:45 AM
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What’s it for ?
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Old 10-12-2019, 01:52 AM
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What’s it for ?
Fuel tablets for cooking. Like in the little hiking stoves and such

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Old 10-12-2019, 01:54 AM
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What’s it for ?
The Army used to issue Hexamine fuel tabs so you could heat rations, make coffee or whatever in the field.

Back in the late '80s, when I first joined, you could still get it through supply. But the flameless heaters that came with MREs made it obsolete.
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Old 10-12-2019, 02:12 AM
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The Army used to issue Hexamine fuel tabs so you could heat rations, make coffee or whatever in the field.



Back in the late '80s, when I first joined, you could still get it through supply. But the flameless heaters that came with MREs made it obsolete.
Yup. You can still sometimes find it at surplus stores.

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Old 10-12-2019, 02:18 AM
Steve_In_29 Steve_In_29 is online now
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The Army used to issue Hexamine fuel tabs so you could heat rations, make coffee or whatever in the field.

Back in the late '80s, when I first joined, you could still get it through supply. But the flameless heaters that came with MREs made it obsolete.
Hard to use the flameless heater to heat water for the cocoa, tea or coffee they still provide in MREs.
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Old 10-12-2019, 02:28 AM
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Hard to use the flameless heater to heat water for the cocoa, tea or coffee they still provide in MREs.
True, not to mention heating water for shaving, etc.

The MREs today often include a heavy-duty zip lock bag that you can put water in, seal it, and use the flameless heater to heat up the water. It works pretty well.

I still have several of them that I keep in my tornado shelter bug-out bag, as extra protection for stuff like the check book. They are better quality than regular, store-bought zip lock bags.
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Old 10-12-2019, 03:05 AM
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True, not to mention heating water for shaving, etc.

The MREs today often include a heavy-duty zip lock bag that you can put water in, seal it, and use the flameless heater to heat up the water. It works pretty well.

I still have several of them that I keep in my tornado shelter bug-out bag, as extra protection for stuff like the check book. They are better quality than regular, store-bought zip lock bags.
But you then have to make a choice, heat your meal or heat the water.
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Old 10-12-2019, 03:09 AM
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But you then have to make a choice, heat your meal or heat the water.
You can do both, those things stay hot for a while.
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Old 10-12-2019, 11:58 AM
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https://www.sportsmansguide.com/prod...-new?a=2136463

Have a bunch stashed away.

Got ours at a fraction of what they want, however posted up in case someone just starting out would like to get some for a truck bag, BOB, GHB, 3 day kit, walkabout bag or whatever.
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Old 10-12-2019, 12:35 PM
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You can do both, those things stay hot for a while.
From my experience they are hit or miss. Some stay hot while others barely last long enough to get your meal warm.

I used MREs from the very first ones back in the 80s right up until 4 years ago so have quite a bit of time with them.
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Old 10-12-2019, 12:37 PM
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https://www.sportsmansguide.com/prod...-new?a=2136463

Have a bunch stashed away.

Got ours at a fraction of what they want, however posted up in case someone just starting out would like to get some for a truck bag, BOB, GHB, 3 day kit, walkabout bag or whatever.
We have quite a few stashed ourselves that I picked up while still in the Marines. As long as the package doesn't develop a pinhole they seem to last forever. At least in USGI packaging,
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Old 10-12-2019, 12:42 PM
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You can buy hexamine at most sporting goods stores and Amazon.

Expedition Solid Fuel - 40 XL Hexamine 1300-Degree Tablets in 10 Retail Packages

It's not military surplus, but I don't think it matters.

I have also read that the packages must stay sealed or the tablets will not work.
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Old 10-12-2019, 12:48 PM
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Originally Posted by Steve_In_29 View Post
From my experience they are hit or miss. Some stay hot while others barely last long enough to get your meal warm.

I used MREs from the very first ones back in the 80s right up until 4 years ago so have quite a bit of time with them.
Yes, that's true, I've encountered some that barely heated up at all. Usually though, they work alright. FWIW, I know you can order the flameless heaters by themselves, in bulk form, apart from the ones that come with MREs.

I joined in '86 and only just retired earlier this year. So I've seen a lot of changes myself. I'm not saying that getting rid of the heating tabs was a good thing, I just don't think they're in the inventory anymore. It's been years and years since I saw any in military issue form.
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Old 10-12-2019, 01:07 PM
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Originally Posted by BrettTheOkie View Post
The Army used to issue Hexamine fuel tabs so you could heat rations, make coffee or whatever in the field.

Back in the late '80s, when I first joined, you could still get it through supply. But the flameless heaters that came with MREs made it obsolete.
When I was in Vietnam, we didn't have hexamine. So we used C4 to heat our coffee!!
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Old 10-12-2019, 01:18 PM
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When I was in Vietnam, we didn't have hexamine. So we used C4 to heat our coffee!!
Back when I was in college I took a course called "Literature of the Vietnam War", which of course included reading a lot of books written by Vietnam veterans, and I do remember reading about that.
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