pure soap

 

Hi I have been reading about making insectisides using pure soap. What is
pure soap sold as, i.e. trade name? Or will Dove soap do?

Thanks Ron

 

Ron, all you need to do is collect any remnants of old toilet soap tablets
from the bathroom, put them in a large pot or jam jar, add hot water, stir
and wait until the soap has turned gloopy. Dilute with more hot water and
use the resulting liquid as a spray. Dove soap would be fine as would any
other toilet soap. This soap spray works a treat with zapping whitefly.
They don't like it on them!

MCT
-----------
"ron" wrote:

 


newyddion:W985g.62051$wl.21340@text.news.blueyonder.co.uk...

Pure soap flakes are available from Tesco's under the name Granny's
Original.

I can't get them anywhere else. I use em to wash my waterproofs in, works a
treat and is a lot cheaper than the expensive stuff you buy in outdoor shops
(which is almost identical, only liquid in form and many times more
expensive.)

T Dave R

 



Most washing up liquid - including supermarket budget brands - is
around 95% soap. There is nothing magical about soap which is merely a
compound of glycerine, and fatty acids derived from sources such
as tallow, grease, fish oils, and vegetable oils.

All unscented washing up liquids are equally effective when used
as shampoo*, bubble bath, insecticide, bicycle cleaner, engine
degreaser, and hand cleaner, as are branded products often costing
ten times as much, if not more.

* In the late 60's/early 70's, civilisation as we know it was almost
rocked to its foundations by Jilly Cooper's admission in the
Sunday Times that she only ever washed her hair in Teepol -
ICI liquid soap. Cue - "and it shows".


michael adams

..

 


|>
|> Most washing up liquid - including supermarket budget brands - is
|> around 95% soap. There is nothing magical about soap which is merely a
|> compound of glycerine, and fatty acids derived from sources such
|> as tallow, grease, fish oils, and vegetable oils.

No, it isn't.  Its active ingredient is sodium laureth sulphate, which
is very different from sodium stearate and similar true soaps.  I have
no idea what the chemical distinction between a detergent and a soap is,
but sodium stearate is pretty simple (C18H35NaO2 according to Wikipedia).
For comparison, sodium laureth sulphate is CH3(CH2)10CH2(OCH2CH2)nOSO3Na,
and the presence of both sulphur and nitrogen in the same organic molecule
is a well-known warning flag.

That is why sodium laureth sulphate is (a) more effective, (b) riskier
for delcate fabrics and finished and (c) more likely to provoke reactions
than sodium stearate.


Regards,
Nick Maclaren.