The Planted Tank Forum - View Single Post - Anyone made their own Na2S2O35H2O dechlor? Need numbers here...
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post #4 of (permalink) Old 05-15-2012, 01:54 PM
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Join Date: May 2010
Location: Boston, Ma
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When they going by volume it usually out of 100ml, so 1g over 1000ml will be 0.1% not 1%. So to make a 32% solution it would be 32g/100ml so to make 1 liter you need 320g. To make 1/2 Liter you need 160g not 16g.

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