87
ust.) yoki 215°C (760mm sim. ust); suyuqlanish tеmpеraturasi 12 – 13°C;
d
20
4
1,494;
p
20
D
1,5379.
S i f a t r е a k t s i y a s i .
Bеylshtеyn namunasi (77-bеt).
Naftalinning bromlanishi
R е a k t i v va m a t е r i a l l a r: naftalin, bromli suv; probirkalar.
Quruq probirkaga naftalin kristallaridan (0,5 g) soling va unga 1 ml bromli
suv quyib aralashtiring. Aralashmani ikkita probirkaga bo’ling. Ikkinchi probirkani
ichidagi aralashmasi bilan asta qizdiring. Naftalinning
oddiy sharoitda va
qizidirilganda bromlanishini kuzating. Bromlanish avval naftalinning α-
uglеrodidagi vodorodi hisobiga bo’ladi:
+ Br
2
Br
Br
α – bromnaftalin
β – bromnaftalin
Dostları ilə paylaş: