Denny, you been snookered, there's no phosphoric acid in it if it's not on the MSDS sheet, and it's not - no tellin what "Organic Salts" means, but in chemistry a salt is a type of compound, and I suspect in this case that would be some form of Citric Acid, a much more benign thing used in various cleaning formulas nowadays .... need to find the real deal

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot