Basic SOP for stabilized 4% H4SiO4
Small batch SOP (200g) for testing
I’ll create a professional SOP for the 4% and 6% this weekend. At that time I’ll also start a new thread, so it’s easy to find vs. buried deep in a general thread about silicates.
Sodium silicate or magnesium silicate could be used instead of potassium silicate. However, Na2SiO3 has a lower SiO2:Na2O ratio (vs. SiO2:K2O), and the same for Mg silicate, so you’d want to use >2 mol. equiv. of H3PO4 to H4SiO4 when using Na or Mg silicate. AgSil 16H is the best choice when using silicate salt (instead of TEOS) for a few reasons, not least of which is its greater water solubility and very high SiO2:K2O ratio of 1:1.6.
