Randy Holmes-Farley
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My Tank Thread
Typically high Levels of bromide impurity in many Magnesium salts
Thanks, Christoph. I did use magnesium from the Dead Sea works to boost my new salt water somewhat since I used only kalkwasser for calcium and alk. I’m not sure that can explain the result, but maybe.
This is the analysis they provided for a product similar (not exactly) to what I used:
Element Typical(ppm) Maximum(ppm)
Mg 115000(11.5%) 125000 (12.5%)
Ca 7000 8000
Br 5000 8000
K 2500 3500
S(SO42-) 180 200
Sr 120 150
B 20 30
Li 10 15
N* 4 5
Si 9 15
Fe 3 10
P 2 3
Mn 2 3
Al 1 3
Ba 1 2
Co <1
Cr <1
Cu <1
F <1
Mo <1
Ni <1
Se <1
V <1
Zn <1
As <0.1
Hg <0.1
Pb <0.1
Cd <0.01
I n.a
Rb n.a
Thus, every time I added 100 ppm magnesium to new salt water, it boosted bromide by about 5-6 ppm. Thus I’m not sure I see a way to get greatly elevated bromide this way.