McCready wrote:
"Bioboffin" wrote in message
...
McCready wrote:
"Jim Spriggs" wrote in

I have now purchased a specific ivy killer containing ammonium
sulphamate.

That's sulphate.


I wouldn't be so sure...

http://pmep.cce.cornell.edu/profiles...amate-ext.html

John.

Oh! I'm sure I'm a scientist / chemist.
The yanks always spell things "let's say" differently to us British.
It's Sulphate.

The following statement then, is rubbish?

"Ammonium sulfamate is colorless, odorless, hygroscopic, water- soluble
crystalline solid (3, 10). It is compatible with other water- soluble
herbicides or wettable powders as long as their active ingredients are not
sensitive to acids. It is incompatible with the herbicide bromacil (10).
Ammonium sulfamate is readily oxidized by bromine and chlorine, and forms
addition products with aldehydes (28). The technical grade product contains
70-90% of the active ingredient with 10-30% impurities, such as water,
ammonium salt of iminodisulfonic acid, and ammonium sulfate (13). "

Or is it possible for ammonium sulphate to be an impurity in ammonium
sulphate?

:-)