2 Part Magnesium Converstion (Cups to grams)

[Clownfishy]

Hi,
I am from the UK and trying to work out how many grams a US Cup equates to so I can mix up the Magnesium part (Recipe 1, 3A) of Randys 2 part. It seems to depend on the solid for what a cup can mean in grams -
https://www.dovesfarm.co.uk/hints-tips/cheat-sheets/us-cups-conversion-table

Any idea how many grams of Magnesium Chloride and Epson Salts I should use to mix 1 US gallon?

Many thanks

 

[Martin Kuhn]

Good idea. It is much more accurate to „weigh“ the salts instead of just „measure by its volume“ (cups). The thing is that products available might have different density.

I will tell you the weights once i‘m at home and can have a look in my database.

 

[Martin Kuhn]

You should do fine if you dissolve 422,7 g MgCl2 6xH2O + RODI to end with 1 Liter of stock solution

or as 1 US gallon = 3,78 Liter -> just multiply with 3,78
-> 1598 g MgCl2 6xH2O + RODI to end with 1 gallon of stock solution

 

[Martin Kuhn]

sorry 2x post

 

[Clownfishy]

You should do fine if you dissolve 422,7 g MgCl2 6xH2O + RODI to end with 1 Liter of stock solution

or as 1 US gallon = 3,78 Liter -> just multiply with 3,78
-> 1598 g MgCl2 6xH2O + RODI to end with 1 gallon of stock solution

Many thanks for your reply, very helpful