Amount of Potassium in KH2PO4

[solonavi]

Hi guys,

Need some advice on how much potassium are there in the KH2PO4? the calculator in chuck's website only shows the PO4 but not potassium.

I typically mixed 100grams of KH2PO4 to a 500ml of water. Each dosage is 10ml of the mixture, which equal to ~1.7ppm of PO4. But I will like to also know how much of potassium am I adding too.

Thanks
JC

[ranmasatome]

i thik the amount will be very very little..

[Justikanz]

Chemically speaking, for every phosphate ion (PO4-), there will be 1 potassium ion (K+) in this chemical.

[ranmasatome]

well..thats what i mean..in comparison to the 20 or 30ppm of k you're dosing...1.7 would be ntohing..

[solonavi]

Ic. Thanks for the clarification.

Cheers
JC

[bclee]

Breakdown of KH2PO4:

K - 11.7 wt%
PO4 - 86.7 wt%
P - 33.3 wt%

BC

[spinex]

You can go to Aquatic Plant Central website and use their Fertilatator will show.

[solonavi]

You can go to Aquatic Plant Central website and use their Fertilatator will show.

But APC's version dun show the amount after mixed in water. Is it proportional?

JC

[spinex]

But APC's version dun show the amount after mixed in water. Is it proportional?

JC

It should be. You can verify by comparing the NO3 which you have generated off the Chuck Calculator. If almost similar u can be quite sure the K is also correct.