H o z ir g i v a q t d a b o g ' l a n g a n a z o t n i n g u m u m i y m i q d o r i d a t abiiy
m a n b a l a r d a n o l i n a y o t g a n b o g ‘l a n g a n a z o t b i r f o i z d a n k a m r o g ‘ini,
k o ‘m i r n i k o k s l a s h d a o l i n a y o t g a n i esa 4 % d a n k a m r o g ‘ini tashki l
etadi. Yoy usuli b o ‘yi cha e l e m e n t a r a z o t ni b o g ' I a s h o ‘zi ni n g s a m a r a -
sizligi t u f ay l i 1 9 3 2 - y i l d a yo q s a n o a t m i q y o s i d a n siqib c h i q a r i l g a n .
S i a n a m i d usuli b o ' y i c h a b o g ' l a n g a n a z o t i sh l ab c h i q a r i s h f a q at a y
r i m m a m l a k a t l a r d a g i n a s a q l a n i b q o l i n g a n , c h u n k i u k o r x o n a l a r
kalsiy s i a n a m i d i d a n b i r q a t o r b i r i k m a l a r ( ka ls iy si an id i C a ( C N ) 2,
n at r i y si an i d i N a C N , o z o d s i a n a m i d H 2C N 2, d i s i a n a m i d ( H 2C N 2) 2,
t i o m o c h e v i n a C S ( N H 2) 2 va b o s h q a l a r ) i shl ab c h i q a r i s h g a ixt isos-
l as hga n.
19 30 -y i l l a r da n b o s h l a b b o g ' l a n g a n a z o t n i ishl ab c h i q a r i s h n i n g
asosiy usuli b o ' l i b e l e m e n t a r va t o z a a z o t va v o d o r o d d a n a m m i a k n i
si ntez qilish 2. 6-j adval dan k o ' r i ni b turibdiki, b o g ' l a n g a n a z otni ishlab
c h i q a r i s h d a a m m i a k l i usul ul ushi hozirgi v a q t d a 9 7 % d a n a n c h a g i n a
o sh i b k e t g a n d i r . A y r i m m a m l a k a t l a r n i a m m i a k ishlab c h i q a r i sh d a g i
ulushl ar i 2 . 7 -j a d v a l d a k o' r sa til ga n.
2. 7-jadval
A M M I A K I S H L A B C H I Q A R I S H B O ‘Y I C H A
B U T U N D U N Y O U M U M I Y Q U W A T I D A A Y R I M
M A M L A K A T L A R U L U S H L A R I ,
%
Dostları ilə paylaş: