Please help silicate dilution math

[ReefLab]

I added 79.3g of 41% Na2SiO3 to 400mL of RODI. If I did everything correct, 1mL of this should raise my 400L tank by .1ppm SiO2?
Please help before I dose so I don't nuke my tank!

So you don't need to look it up:
Na2SiO3 = 122.06g/mol
SiO2 = 60.08g/mol

 

[Randy Holmes-Farley Verified Community Expert]

I added 79.3g of 41% Na2SiO3 to 400mL of RODI. If I did everything correct, 1mL of this should raise my 400L tank by .1ppm SiO2?
Please help before I dose so I don't nuke my tank!

So you don't need to look it up:
Na2SiO3 = 122.06g/mol
SiO2 = 60.08g/mol

yes, although such calculations are imperfect because the silicate solution you made in 400 mL will have a density a bit higher than 1 g/mL. The calulation assumes you dosed 1 g, not 1 mL. Close enough, though.

 

[ReefLab]

yes, although such calculations are imperfect because the silicate solution you made in 400 mL will have a density a bit higher than 1 g/mL. The calulation assumes you dosed 1 g, not 1 mL. Close enough, though.

Great. Thanks!