urbaf2

NITRO DERIVATIVES OF BENZENE 235

TABLB 33

SOLUBILITY OF DINITROBENZENES

Solvent

Temperature

°C

Methanol 20.2
Ethanol 20.5
Propanol 20.0
Carbon disulphide 17.6
Chloroform 17.6
Carbon tetrachloride 16.5
Benzene 18.2
Toluene 16.5
Ethyl acetate 18.2
Water 20.0
Water 100.0

TABLE 34

100 g of solvent dissolve

ortho

8

3.3

1.9

1.09

0.24

27.1

0.14

5.68

3.63

12.96

0.01

0.30

meta

g

6.75

3.5

2.4

1.35

32.4

1.18

39.45

30.66

36.27

0.02

0.32

Para

g

0.69

0.40

0.30

0.14

1.82

0.12

2.56

2.36

3.56

0.01

0.30

SOLUBILITY OF m- DINITROBENZENE (%) IN SULPHURIC ACID OF VARIOUS CONCENTRATIONS

Temperature

°C

0

10

25

40

50

60

70

80

90

100

• Concentration of sulphuric acid in % H 2 SO 4
  70 80 I 90

0.60

0.65

0.75

0.90

1.00

1.15

1.40

1.85

2.05

3.00

1.4 7.15

1.4 7.2

1.7 7.9

1.8 9.0

2.2 10.1

2.7 11.25

3.5 13.40

4.0 16.0

4.8 18.6

6.5 22.3

TABLE 35

EUTECTICS WITH m- DINITROBENZENE

The second component

Weight %

of m- DNB

m.p. ºC

Cyclonite

Nitroglycerine

Pentaerythritol tetranitrate
Picric acid
Tetryl
sym-Trinitrobenzene
Trinitro-m-cresol
α -Trinitrotoluene
Trinitro-m-xylene

92

17.1

17.5

47.5

66

54

53

44.8

45.5

82.2

85.5

5.0

5.0

65.5

63

65.5

61.9

54.4

51

76.4

Author

Urbanski and Rabek-Gawronska [4]

Kurita and Hagui [5]

Hackel [6]

Urbanski [7]

Kremann and Pogantsch [8]

Jefremov and Tikhomirova [9]

Hammick, Andrews and Hampson [10]

Jefremov [11]

Hrynakowski and Kapuscinski [12]

Jefremov and Tikhomirova [9]