--- a/src/MainWindow.cpp	Sun Jul 17 22:14:41 2022 +0200
+++ b/src/MainWindow.cpp	Sun Jul 17 22:16:20 2022 +0200
@@ -70,6 +70,9 @@
     maintDataBase();
     openWS(useDevelopOption);
 
+    /*
+     * AcidSG are the values at 100% strength.
+     */
     Acid a;
     a.name_en = "Lactic";
     a.name_nl = "Melkzuur";
@@ -95,7 +98,7 @@
     a.pK2 = 7.20;
     a.pK3 = 12.44;
     a.MolWt = 98.00;
-    a.AcidSG = 1982.0;
+    a.AcidSG = 1773.0;
     a.AcidPrc = 75.0;
     my_acids.append(a);
     a.name_en = "Sulfuric";