242
10 Illustrative Case Study
Table 10.1
Relevant property and hazard data for the substances involved in the reaction step
Parameter
3-Chloro-2isopropylthio
aniline
Copper(I)
cyanide
3-Methylpyridine
3-Amino-2isopropylthio
benzonitrile
Sodium
sulfide a
Copper(I)
sulfide
Methyl
ethyl
ketone
Hydrogen
cyanide
Chemical formula
C
9 H
12 ClNS
CuCN
C
6 H
7 N
C
10 H
12 N
2 S
Na
2 S
Cu
2 S
C
4 H
8 O
HCN
Molecular weight [g/mol] 201
89.6
93.1
192
78.0
160
72.1
27.0
Melting point [ ◦
C]
<0
473
−18
83–86
950
1100
−18
−13.4
Boiling point [ ◦
C] b
297.9
–
144
105
–
–
79.6
25.7
Density [g/cm 3
]
1.19
2.92
0.95
–
1.86
5.6
0.95
0.7
Relative vapor density c
–
–
–
–
–
–
2.48
0.94
Flash point [ ◦
C]
154
–
36
–
–
–
−4
−18
Autoignition temp [ ◦
C]
360
–
–
–
–
–
505
538
Decomposition temp [ ◦
C] 320
–
–
>340
–
–
–
–
a
In the reaction, the hydrate form is used (Na
2 S·x H
2 O) with a Na
2 S content of 60–62%
b
At 1.013
× 10 5
Pa (normal atmospheric pressure)
c
Air
= 1