Tubes Handbook 18th Edition (EN) - May 2018

CAS – Number
Chemical Formula
Molecular Weight [Kg/Kmol]
AGW-Value ppm = [mL/m 3 ]
[mg/m 3 ]
Peak Limit
[ppm]
TLV-Value
TWA ppm = [mL/m 3 ]
[mg/m 3 ]
STEL ppm = [mL/m 3 ]
[mg/m 3 ]
WEL-Value
TWA ppm = [mL/m 3 ]
[mg/m 3 ]
STEL ppm = [mL/m 3 ]
[mg/m 3 ]
Conversion Factors
1 ppm = 1 mL/m 3 = [mg/m 3 ]
[1 mg/m 3 ] = ppm = mL/m 3
Vapor Pressure at 20°C [h Pa]
Relative Vapor Density
Melting Point
[°C]
Boiling Point
[°C]
UN – Number
Group & Hazard Class
Ignition Temperature [°C]
Lower Ignition Limit [Vol%]
Upper Ignition Limit [Vol%]
Odor threshold (approx.) ppm
Methyl isobutyl ketone
[108-10-1]
(H 3 C) 2 C 2 H 3 -CO-CH 3
100.16
20
83
40 (15 min)
50
205
75 (15 min)
300 (15 min)
50
208
100
416
4.16
0.24
18.8
3.46
-80.3
115.9
1245
A I
475
1.2
8
0.5
Methylisothiocyanate
(MITC)
[556-61-6]
H 3 C-N=C=S
73.11
–
–
–
–
–
–
–
–
–
–
–
3.04
0.33
26
2.53
35
119
2477
–
–
–
–
–
Methyl mercaptan
[74-93-1]
H 3 CSH
48.1
0.5
1
1 (15 min)
–
–
0.5 (15 min)
1 (15 min)
0.5
1
–
–
2.0
0.5
1700
1.7
-123
6
1064
–
360
4.1
21
0.002
Methyl methacrylate
[80-62-6]
H 2 C=C(CH 3 )COOCH 3
100.12
50
210
100 (15 min)
100
410
–
–
50
208
100
416
4.16
0.24
39.6
3.46
-48.2
101
1247
A I
430
1.7
12.5
20
428| Table of Physical. Chemical and Toxicological Data for selected Substances