Two Part Weight/Gallon

[msderganc]

Hi Randy,

I know in your article you list 500g of Calcium Chloride dihydrate, and 593g of Sodium Bicarbonate per gallon for dosing.

However, I am dosing sodium carbonate (from BRS two part) and was wondering what exact weight per gallon I should be using. In the article, you mention baking the 593g down and adding residual to the water, but I'm starting with the residual. I know BRS recommends 2 cups per gallon, but this comes out much lower than the 593g.

TBH, I'd love to know the exact weights of both of the water and the calcium and sodium carbonate, so that I could mix it precisely each time. BRS's instruction to fill a jug 5/6 full of water does not work with my OCD :tongue:

Thanks,
Matt

 

[beaslbob]

Ignore this post

 

[Randy Holmes-Farley Verified Community Expert]

594 grams of baking soda (sodium bicarbonate) is equal to 375 grams of sodium carbonate in terms of alkalinity.

500 grams of calcium chloride dihydrate is equal to 377.5 grams of anhydrous calcium chloride in terms of calcium addition.

 

[msderganc]

594 grams of baking soda (sodium bicarbonate) is equal to 375 grams of sodium carbonate in terms of alkalinity.

500 grams of calcium chloride dihydrate is equal to 377.5 grams of anhydrous calcium chloride in terms of calcium addition.

Thanks, so what you're saying is that I should mix 375g of sodium carbonate with enough water to make 1 gallon to match your recipe?

 

[Randy Holmes-Farley Verified Community Expert]

Yes.

 

[msderganc]

Yes.

Are these recipes based on the maximum solubility of the ingredients? Is it possible to increase the concentration?

 

[Randy Holmes-Farley Verified Community Expert]

It is based on being close to the solubility limit of the alkalinity part. I wouldn't try to make that one much more concentrated. The calcium can be a lot more concentrated, but then wouldn't match the alk part.