Dosing silicate via dosing pump?

[ReefNAZOut]

I set up my dosing pump and I am dosing limewater with vinegar, iron, and I want to dose silicate, i bought the waterglass sodium silicate and I am wondering if it is ok to mix up a master batch with ro water and dose it with a pump, I figured it to be ten parts ro water to one part waterglass. Will the sodium silicate mix with the water to create a consistant dose or will it seperate and be dosing inconsistant. Also is it safe to have it mixed with water for over a year in an air tight jug? Let me know your thoughts please.