-------------------------------------- Solid phase. | Area of existence. -------------------------------------- Ice | ABDC KCl | CDEMKLNO Carnallite | EFGHJKM MgCl_{2},12H_{2}O | BF_{1}G_{1}GFED MgCl_{2},8H_{2}O | G_{1}H_{1}HG MgCl_{2},6H_{2}O | H_{1}I_{1}IH MgCl_{2},4H_{2}O | I_{1}L_{1}LKI MgCl_{2},2H_{2}O | L_{1}N_{1}NL -------------------------------------- II. _Univariant Systems._--The different univariant systems have already been described. The course of the curves will be sufficiently indicated if the temperature and composition of the solutions for the different invariant systems are given. {288} III.--_Invariant Systems--Binary and Ternary._ ------------------------------------------------------------------------- | | | Composition of solution. Point. | Solid Phases. | Temper- | Gram-molecules of salt | | ature. | per 1000 gram-mol. water. ------------------------------------------------------------------------- A | Ice | 0° | -- | | | B | Ice; MgCl_{2},12H_{2}O | -33.6° | 49.2 MgCl_{2} | | | C | Ice; KCl | -11.1° | 59.4 KCl | | | D |{ Ice; MgCl_{2},12H_{2}O; }| -34.3° | 43 MgCl_{2}; 3 KCl |{ KCl }| | | | | E |{ MgCl_{2},12H_{2}O; KCl; }| -21° | 66.1 MgCl_{2}; 4.9 KCl |{ carnallite }| | | | | F_{1} | MgCl_{2},12H_{2}O | -16.4° | 83.33 MgCl_{2} | | | F |{ MgCl_{2},12H_{2}O; }| -16.6° |{ Almost same as F_{1}; |{ carnallite }| |{ contains small amount | | |{ of KCl | | | G_{1} |{ MgCl_{2},12H_{2}O; }| -16.8° | 87.5 MgCl_{2} |{ MgCl_{2},8H_{2}O }| | | | | G |{ MgCl_{2},12H_{2}O; }| -16.9° |{ Almost same as G_{1}, |{ MgCl_{2},8H_{2}O; }| |{ but contains small |{ carnallite }| |{ quantity of KCl | | | H_{1} |{ MgCl_{2},8H_{2}O; }| -3.4° | 99 MgCl_{2} |{ MgCl_{2},6H_{2}O }| | | | | H |{ MgCl_{2},8H_{2}O; }|ca. -3.4° |{ Almost same as H_{1}, |{ MgCl_{2},6H_{2}O; }| |{ but contains small |{ carnallite }| |{ amount of KCl | | |