Chris
Pack high nitrogen fertilizer into the holes and wait a year for
fungal degradation. Nitric acid is much faster, but more hazardous.
White rot fungus will do nicely, as will termites.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
"Quis custodiet ipsos custodes?" The Net!
> Chris Jones wrote:
>>
>> I was told I could get rid of old trees stumps in my yard by boring holes
>> vertically through the stump and filling them with acid. I tried conc. HCl
>> and it didn't do much to the stump. Any suggestions on what would work?
>
> Pack high nitrogen fertilizer into the holes and wait a year for
> fungal degradation. Nitric acid is much faster, but more hazardous.
> White rot fungus will do nicely, as will termites.
A commercial product for this uses sodium nitrate. After waiting the year or
so, the stump can be burned. I suppose it can be done in a way that does not
burn down anything important.
Bill
I think the answer to your problem lies, not in Chemistry, but in Physics.
Hire a stump grinder.
Cheers
John Owen, Victoria BC
I have seen saltpeter used this way. The stump degrades at a faster rate
when nitrate is present as it provides a more balanced diet for compost
microorganisms (Carbon/Nitrogen ratio). As a side effect adding the
oxygen makes it burn well without air so a fire started on a treated
stump will burn down into the ground and eliminate the roots.
In the UK there is a commercial product for this purpose - it is
sulfamic acid. And it works !
--
Chris Cooksey
> Real chemists don't use stump grinders ;)
If it's powered by a chemical reaction...
The other replies included waiting a year or so. If you fill your
stump with picric acid your stump can be gone in fractions of a
second. It is an explosive :). Other explosives may be more suitable
but you asked for an acid ...
Bernhard
Thank you for the recommendations. I have many more stumps to remove so I
will try using high nitrate fertilizer, as well as nitric, sulfamic and
lactic acids. Explosives will not be considered.
The most effective method so far has been to bore holes vertically through
the stump and fill the holes with diesel fuel. The diesel fuel is then lit
using a bit of gasoline and a lighter to get it to ignite. It took 5 such
treatments to burn out the stump.
Chris
Chop holes and plant with bergamot, aka bee balm. Let the plant's roots
chew through the stump while making your local hummingbird population
insanely happy.
>The most effective method so far has been to bore holes vertically
>through the stump and fill the holes with diesel fuel. The diesel fuel
>is then lit using a bit of gasoline and a lighter to get it to ignite.
>It took 5 such treatments to burn out the stump.
A similar treatment of the problem consists of placing a steel
drum, open on both ends, over said stump. Pour in charcoal. Make your own
BBQ while toasting your problems.
-AJHicks
Chandler, AZ
http://www.fao.org/docrep/q1093e/q1093e05.htm
John Decker
a syrup of sodium chlorate and icing sugar dissolved in a small amount water
and fed into the stump for a week or so, can then be ignited when dry. It
burns slowly but will eventually remove any evidence of the tree stump and -
to the extent that the solution gets into the root system - they will burn
too.
SteelawayNOSPAM
I used to use it, as a mineral exploration field technician to remove
organics from sand and soil samples.
Cheers,
Julian Grodzicky
VK1YKP
__________________
On Thu, 13 Jun 2002, SteelawayNOSPAM wrote:
}Date: Thu, 13 Jun 2002 21:47:10 +0930
}From: SteelawayNOSPAM <steelawayIH...@bigpond.com>
}Newsgroups: sci.chem
}Subject: Re: Best acid to remove tree stumps?
}
}
}"Andrew Tweddle" <sar...@alphalink.com.au> wrote in message
}news:3D02CEB3...@alphalink.com.au...
}> "Dr. Rev. Chuck, M.D., P.A." wrote:
}>>
}>> Chris Jones wrote:
}>>>
}>>>I was told I could get rid of old trees stumps in my yard by boring
}holes vertically through the stump and filling them with acid. I
}tried conc. HCl and it didn't do much to the stump. Any suggestions
}on what would work?
}>>>Chris
[snip]