RG wrote:
I find your comment rather strange, since my reply was entirely serious
and factually correct.

It may have been aimed at the person you replied to rather than you.

Another possible garden use for phosphoric aid is to clean concrete paths,
but in a stronger concentration than Coke.

I used half a bottle of diet cola to clean my bike chain recently after it
rusted. Did a spankingly good job, I must say.

wrote in message
...
wrote:
If you had read the second part of my posting, you would have seen
that I did say that it was a phosphoric fertiliser! Yes, of course,
the Sweeney Todd allusion was a joke.

I don't know, wasn't Alan asking earlier about suspiciously large sized
chest freezers ... ?

Yes I was asking about 'large' chest freezers, I did see some about 8 feet
long, but they were a little bit too large!(:-)

I did find one nearly 3 feet long which is about right.

Alan



;-)

wrote in message
...
In article ,
Jeff Layman wrote:
"RG" wrote in message
news

A very strong solution will certainly etch glass.

Do you have a reliable reference for this, please? Google most certainly
comes up with quite a few hits for "phosphoric acid" and "etch glass", but
I
have been through the first 40 and found nothing which substantiates that
statement unequivocally. I have always understood that the only chemicals
which attack glass are (1) hydrofluoric acid (2) strong alkalis.

That is definitely wrong. Glass is etched naturally in the soil, for
a start.


I take your point - it's been noted with fulvic and humic acids. But I
should have made it clear that I was considering visible chemical attack on
a much shorter timescale.

--

Jeff

wrote:
In article i5OMn.15545$jM2.2951@hurricane,
alan.holmes wrote:

Thanks for that it is most helpful, which makes a change to the
efforts of others who have made comments.

I was under the impression that it was some sort of fertiliser, but
it is so long since I last used it I had forgotten how to use it.

If you had read the second part of my posting, you would have seen
that I did say that it was a phosphoric fertiliser! Yes, of course,
the Sweeney Todd allusion was a joke.

I have no idea why you have phosphoric acid rather than the more
usual calcium phosphate (which was later superseded by
superphosphate), but phosphorus is phosphorus.

You could try your hand at making Coca-Cola. Or turn rust to phosphate
with it, before painting. That's the principle behind that stuff whose
name will come back to me any moment now...er...um... "Jenolite"! But
I'd ring the Council and get rid of it: you don't really want even
moderate acids lying about in any quantity if you can't even remember
why you've got them...

--
Mike.

In article , Jeff Layman
writes
I have always understood that the only chemicals which attack glass are
(1) hydrofluoric acid (2) strong alkalis.


No there's others. I have a small screen printing kit called Gocco and
you can get an add-on kit which basically allows the etch to go
throughout eh screen onto glass to etch it.

Janet
--
Janet Tweedy
Dalmatian Telegraph
http://www.lancedal.demon.co.uk

alan.holmes wrote:
wrote in message
...
In article LGvMn.28769$9J1.20264@hurricane,
alan.holmes wrote:
As one does every 20 years or so, I can across a HUGE bag of something
called 'Phosphoric Acid' which I obviously bought for some use, but what
was
it used for?
Dissolving human bones and teeth after you have turned the rest of
their bodies into meat pies.

Interesting, but I somehow do not think I would have bought it dissolve
parts of bodies, I'm sure it would have been bought to use in the garden,
but what for?

Rust remover.

--
Rusty

alan.holmes wrote:
wrote in message
...
wrote:
If you had read the second part of my posting, you would have seen
that I did say that it was a phosphoric fertiliser! Yes, of course,
the Sweeney Todd allusion was a joke.
I don't know, wasn't Alan asking earlier about suspiciously large sized
chest freezers ... ?

Yes I was asking about 'large' chest freezers, I did see some about 8 feet
long, but they were a little bit too large!(:-)

I did find one nearly 3 feet long which is about right.

Alan


;-)

Local brat causing trouble, then?

--
Rusty

alan.holmes wrote:
"RG" wrote in message
news
On Sun, 30 May 2010 22:09:26 +0100, alan.holmes
wrote:

wrote in message
...
In article LGvMn.28769$9J1.20264@hurricane,
alan.holmes wrote:
As one does every 20 years or so, I can across a HUGE bag of something
called 'Phosphoric Acid' which I obviously bought for some use, but
what
was
it used for?
Dissolving human bones and teeth after you have turned the rest of
their bodies into meat pies.
Interesting, but I somehow do not think I would have bought it dissolve
parts of bodies, I'm sure it would have been bought to use in the garden,
but what for?


Phosphoric Acid is a constituent of Coca Cola and other similar drinks,
added to give it the 'bite'.
Yes, it does rot your teeth.

I wonder why you bothered to send an article which is so childish and
stupid.

Happens to be true - all of it.

--
Rusty

David WE Roberts wrote:

"alan.holmes" wrote in message
news:LGvMn.28769$9J1.20264@hurricane...
As one does every 20 years or so, I can across a HUGE bag of something
called 'Phosphoric Acid' which I obviously bought for some use, but
what was it used for?

When I first saw the bag the words 'growmore' came to mind, but
bearing in mind the reliability of my memory it could be anything!

So, what sould I be using it for?

IIRC phosphoric acid can be used to etch glass - although a customised
grenhouse seems a little OTT :-)

However this would be a liquid, not a solid.

Etch glass? I don't think so - you're probably thinking of hydrofluoric
acid.

That stuff is seriously *BAD NEWS*.

--
Rusty

wrote:
In article ,
Jeff Layman wrote:
"RG" wrote in message
news
A very strong solution will certainly etch glass.
Do you have a reliable reference for this, please? Google most certainly
comes up with quite a few hits for "phosphoric acid" and "etch glass", but I
have been through the first 40 and found nothing which substantiates that
statement unequivocally. I have always understood that the only chemicals
which attack glass are (1) hydrofluoric acid (2) strong alkalis.

That is definitely wrong. Glass is etched naturally in the soil, for
a start.

Mainly, I believe, as a result of being slowly dissolved by water (which
will do that to most things to some extent) and when fluorides are
present in the soil.

--
Rusty