Boric acid Boric acid kdorfman Tue, 12/20/2011 - 15:09 Boric acid (H3BO3) 0.01 M (=10 mM) 1000x for M&S micronutrients MW = 61.83 0.031 g/50 mL MW of Boric acid: Concentration: Mto make: mLadd: g boric acid