·3H2Oisem— phasizedforitspotentialroleasaCO2-sequestering mediumandasameansofdisposingMg..richwaste. - water [9一I1】.Nesquehoniteisusuallysynthesized throughareactivecrystallization(socalledprecipita— tion)processbythereactionofMgC12-richbrinewith precipitators,i.e.Na2CO3or(NH4)2CO3,yieldingthe ...