Hmmm. I think that statement is an oops. As I recall from the dusty memories of my long ago chemistry class, muriate of potash is potassium chloride. Jean in Portland, OR -----Original Message----- From: Alberto Castillo <ezeizabotgard@hotmail.com> To: pbs@lists.ibiblio.org Sent: Mon, 07 Nov 2005 13:43:25 +0000 Subject: Re: [pbs] Nerine sarniensis Muriate of potash and potassium sulphate are the same thing. ...