Note, this is high strength 40% solution, specifically for dosing water Glass to an aquarium not for the aquaculture of diatomes.
See Mac's Dinoflagellate support group for dosing advice
Those wishing to dose silicates for aquaculture of diatomes search the website for silicate solution.
Typical Physical Properties
Appearance: Clear to pale straw liquid
Odour: Odourless
pH: 11.5–13.0
Solids content: ~40% w/w
Specific gravity: ~1.38–1.42 at 20°C
Viscosity: Medium to high (syrupy)
Solubility: Fully water soluble