Macro nutrient mold - Problem Solved: Now preservation methods - Page 2
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Old 09-20-2013, 07:06 PM   #16
happi
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Quote:
Originally Posted by kcoscia View Post
I don't dose excel or anything normally but I may look into it. I'm also curious about the other method- asorbic acid and potassium sorbate. how much? how do you get it, etc
anywhere between 0.5 to 1 gram is fine for both when making 500ml solution, you can increase them if you are trying to make a highly consecrated solution. i made a DTPA Fe solution which stated fresh for one full year before finishing the bottle.
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Old 10-03-2013, 01:51 PM   #17
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funny conclusion:
Today I realized I can't keep my REAL macro nutrients in the fridge because of the low temperature, the powder crystallizes lol :|
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