Epsom salts

[hypnogogia]

Is this OK to use when preparing my EI mix? Was given it by a gardener.

 

[zozo]

Yes, it is...

 

[hypnogogia]

Yes, it is...

cool, thank you. Was a bit worried about the percentages and wondering what the remaining 51.5% is.

 

[zozo]

wondering what the remaining 51.5% is.

I'm not 100% sure but since it's a Hydrate it will mostly be water...

Mgo + SO3 = MgSO4 and the most common is the Heptahydrate that should make it MgSO4.7H2O the last part are 7(hepta) water(hydrate) molecules per 1 MgSO4 molecule.

 

[dw1305]

Hi all,

I'm not 100% sure but since it's a Hydrate it will mostly be water...

Mgo + SO3 = MgSO4 and the most common is the Heptahydrate that should make it MgSO4.7H2O the last part are 7(hepta) water(hydrate) molecules per 1 MgSO4 molecule.

Whatever it says on the bag it will <"only be ~10% Mg"> when you use it, because of Marcel's (@zozo ) <"water of crystallization">.

cheers Darrel