6

, . , . , , 58 - 60, g = 36,7 52, g = 112 - 42.[1]

NaOH . NaOH , ( 18%- NaOH). NaOH , NaOH, .

, , . . .

( S-) , .

(- ) . , , , . , . , ( ), .

: 2 3 4 5 6 7 8 9 10

() , . 1919 . 1990 150 . (1969). - .

" " , (1924-31) . " " " " - , , (. . , . . , . . , . . , . . , . . , . . ). , ; .

(1890-1962) , , (1952), (1958). " ", " ", "". , , . (1942).