Dosing silicates

[joaocdestro]

I like diatoms because they compete aganist Dino's specialy Ampidiniuns type, because they don't swim to be killed by UV light.

 

[diver22]

Hi @Randy Holmes-Farley what Silicate would you recommend ? if possible can you send me a link to it Amazon preferably ... lol...

 

[Randy Holmes-Farley Verified Community Expert]

This one is likely OK:

 

[diver22]

This one is likely OK:

Thank you Randy...

 

[KenO]

I got this one.
Sodium Silicate 40% (Water Glass)

 

[diver22]

I got this one.
Sodium Silicate 40% (Water Glass)

Cheap... 23 dollars shipping not so cheap...after shipping.

 

[KenO]

Cheap... 23 dollars shipping not so cheap...after shipping.

It will last a lifetime.

 

[akaimal]

To be precise (which is not at all needed) you do need to measure 50 grams that you mention, not 50 mL (which you didn't suggest, but some folks might think to do).

40% sodium silicate (not 40% silica; not sure which you meant) weighs a lot more than 1 gram per mL, so 40% has more than 40 grams of sodium silicate in 100 mL of solution. Probably closer to 56 grams.

If you add 50 grams of 40% to 400 mL (final concentration is about 20 grams per 435 mL (46 mg/mL) and then dose 71 mL of that solution (3266 mg sodium silicate) to 600 gallons (2271 L), the sodium silicate dosed is 1.4 mg/L. Of that, about half of that weight is "SiO2", so about 0.7 ppm SiO2 equivalents.

Fortunately, dose is very noncritical. If you dose X amount, in a few days, you might be at less than a quarter that amount left.

Hi Randy, Does that mean 1 ml of the solution will raise silicates in 600G by 10 micro grams per liter?

 

[Randy Holmes-Farley Verified Community Expert]

Hi Randy, Does that mean 1 ml of the solution will raise silicates in 600G by 10 micro grams per liter?

Yes, if you make the dosing solution described above.