Maximum Solubility Of Ei Chemicals

[afroturf]

I'm in the process of buying all the chemicals for EI fertilising, I would just like to know what the maximum solubility of the macronutrients are. I've know that K2SO4 is 12grms/100ml but what are the levels for KH2PO4 Potassium Phosphate and KNO3 Potassium nitrate?

Thanks.

 

[reiverix]

KH2PO4 @ 11.1g/100ml
KNO3 @ 35.7g/100ml

Assuming you use distilled or RO/DI water.

 

[Dave Spencer]

Apparently, mixing them in warm water helps with the solubility as well.

 

[reiverix]

Most solubility levels are given at 20c.

 

[bare bottom]

check out the EI pinned article and follow the link to chucks planted website, there is a downloadable fert mixing program which tells you maximum powder weights for certain volumes of water and what the ppm strength is if you put your tank volume in.
as said when your close to the maximum amount of powder fert to dissolve just heat the water up to make things easier.
My K fert leaves a sediment in the bottle so i just shake it before dosing.
HTH

 

[afroturf]

Thank a lot guys the powders should be coming in the mext few days from AE.