Neutralization of Hydrochloric Acid (HCl) with AQUAMAG®

For two moles (73 lbs) of 100% Hydrochloric Acid to be neutralized, the following chemical reactions occur:

AQUAMAG® Mg(OH)2 +
(58.3 lbs)		 2HCL ⇒
(73 lbs)		 MgCl2 +
(95.3 lbs)		 2H2O
(36lbs)
Hydrated Lime Ca(OH)2 +
(74 lbs)		 2HCL ⇒
(73 lbs)		 CaCl2
(111 lbs)		 2H2O
(36lbs)
Caustic Soda 2NaOH +
(80 lbs)		 2HCL ⇒
(73 lbs)		 2NaCl +
(142 lbs)		 2H2O
(36lbs)
Soda Ash Na2CO3 +
(106 lbs)		 2HCL ⇒
(73 lbs)		 2NaCl +
(142 lbs)		 CO2
(44lbs) +		 H2O
(18 lbs)
Caustic Potash 2KOH +
(112 lbs)		 2HCL ⇒
(73 lbs)		 2KCl +
(149 lbs)		 2H2O
(36lbs)

These calculations show the amount of alkali needed to neutralize one ton of Hydrochloric Acid and the resultant amount of salt formed:

Neutralizing Agent lbs Required to Neutralize One Ton H2SO4 Ratio to Mg(OH)2 Totla Dissolved Solids in Effluent (100% Basis) per Ton of Acid
Magox® MgO 1100 0.69 2610
AQUAMAG® Mg(OH)2 1600 1.00 2610
Hydrated Lime Ca(OH)2 2027 1.27 3040
Caustic Soda NaOH 2190 1.37 3210
Soda Ash Na2CO3 2900 1.82 3210
Caustic Potash KOH 3070 1.92 4080