Gasmess-Systeme GmbH
Hildebrandstraße 5
44319 Dortmund / Germany

Phone +49 231 589 409-0
Fax      +49 231 589 409-10

Home
News
Products
Support
Impressum
Jobs
Login

Deutsch

Overview (PDF)

Short view (PDF)

how to find us

e-mail

Substance

Explosion Prevention

Designation

Chemical
Formula

L.E.L. /
Vol.-%

U.E.L. /
Vol.-%

Flash
Point / °C

Ignition
Temperature / °C

Temperature
Class

Group

Relative Density
air = 1

Acetic acid

CH3COOH

4.0

17.0

40

464

T1

IIA

---

Acetone

CH3COCH3

2.5

13.0

-38

535

T1

IIA

2.00

Acetonitrile

CH3CH

3.0

16.0

2

523

T1

IIA

1.42

Ammonia

NH3

15.0

33.6

-

630

T1

IIA

0.59

Argon

Ar

-

-

-

-

-

-

1.38

Arsin

AsH3

3.9

77.8

-

285

-

-

2.69

Benzene

C6H6

1.2

8.6

-11

560

T1

IIA

2.70

Boron trichloride

BCl3

-

-

-

-

-

-

4.05

Boron trifluoride

BF3

-

-

-

-

-

-

2.37

Bromo

Br2

-

-

-

-

-

-

5.52

Bromomethane (R40)

CH3Br

6.7

11.3

<-20

511

T1

IIA

3.76

Butane, n- (Isobutane)

C4H10

1.4

9.3

-80

372

T2

IIA

2.05

Butane-1-ol

C4H9OH

1.7

12.0

29

359

T2

IIA

2.56

Butane-2-ol

C4H9OH

1.7

9.8

24

405

T2

IIA

2.56

Butanone (MEK)

CH3COC2H5

1.8

10.0

-9

404

T2

IIB

2.49

Butyl acetate, n-

CH3COOC4H9

1.3

7.5

22

370

T2

IIA

4.01

Carbon Dioxide

CO2

-

-

-

-

-

-

1.53

Carbon Monoxide

CO

10.9

74.0

-

805

T1

IIB

0.97

Carbonyl chloride

COCL2

-

-

-

-

-

-

3.50

Chlorine

Cl2

-

-

-

-

-

-

2.45

Chlorine dioxide

ClO2

-

-

-

-

-

-

2.33

Cyclohexane

C6H12

1.2

8.3

18

259

T3

IIA

2.90

Cyclopentane

C5H10

1.4

8.0

-37

320

T2

IIA

2.42

Diborane

B2H6

-

-

-

-

-

-

0.96

Dichloromethane

CH2Cl2

13.0

22.0

-

556

T1

IIA

2.93

Dichlorotrifluoroethane (R123)

C2HCl2F3

-

-

-

-

-

IIA

5.28

Diethyl ether

C2H5OC2H5

1.7

36.0

-45

160

T4

IIB

1.63

Difluorothane, 1,1-(R152a)

C2H4F2

-

-

-

-

-

-

2.33

Dimethyl ether

CH2OCH4

2.7

32.0

-42

240

T3

IIB

1.63

Ethane

C2H6

2.5

15.5

-

515

T1

IIA

1.04

Ethanethiol

C2H6S

2.8

18.0

<-20

295

T3

IIB

2.15

Ethanol

C2H5OH

3.1

19.0

12

363

T2

IIA

1.59

Ethene (Ethylene)

C2H4

2.3

36.0

-

425

T2

IIB

0.97

Ethine (Acetylene)

C2H2

2.3

100.0

-

305

T2

IIC

0.91

Ethyl acetate

CH3COOC2H5

2.2

11.0

-4

460

T1

IIA

3.04

Ethylene oxide (ETO)

C2H4O

2.6

100.0

<-18

435

T2

IIB

1.52

Fluorine

F2

-

-

-

-

-

-

1.31

German

GeH4

-

-

-

-

-

-

---

Heptane, n-

C7H16

1.1

6.7

-4

215

T3

IIA

3.46

Hexane, n-

C6H14

1.0

8.4

-21

233

T3

IIA

2.79

Hydrogen

H2

4.0

77.0

-

560

T1

IIC

0.07

Hydrogen chloride

HCl

-

-

-

-

-

-

0.93

Hydrogen cyanide

HCN

5.4

46.0

< -20

538

T1

IIB

0.95

Hydrogen fluoride

HF

-

-

-

-

-

-

0.69

Hydrogen sulphide

H2S

4.0

5.5

-

270

T3

IIB

1.19

Isopropyl acetate

CH3COOC3H7

1.8

8.1

4

467

T1

IIA

3.53

Kerosene

 

0.7

5.0

38

210

T3

IIA

---

Methane

CH4

4.4

17.0

-

537

T1

IIA

0.55

Methanol

CH3OH

5.5

38.0

11

386

T2

IIA

1.11

Methyl acetate

CH3COOCH3

3.2

16.0

-10

502

T1

IIA

2.56

Monochlorinedifluoromethan e (R22)

CHClF2

-

-

-

-

-

-

2.99

Nitrogen

N2

-

-

-

-

-

-

1.00

Nitrogen dioxide

NO2

-

-

-

-

-

-

1.59

Nitrogen monoxide

NO

-

-

-

-

-

-

1.04

Nonane, n-

C9H20

0.7

5.6

30

205

T3

IIB

5.71

Octane

C8H18

0.8

6.5

13

206

T3

IIA

3.94

Oxygen

O2

-

-

-

-

-

-

1.00

Ozone

O3

-

-

-

-

-

-

1.66

Pentane

C5H12

1.4

7.8

-40

258

T3

IIA

2.49

Phosphorus hydrogen (Phosphine)

PH3

1.0

-

-

100

-

-

1.18

Phosphorus trichloride

PCL3

-

-

-

-

-

-

4.74

Propane

C3H8

1.7

10.9

-104

470

T1

IIA

1.55

Propanol, 1-

C3H7OH

2.2

17.5

22

405

T2

IIB

2.08

Propanol, 2-

C3H7OH

2.0

12.7

12

425

T2

IIA

2.08

Propene (Propylene)

C3H6

2.0

11.0

-

455

T1

IIA

1.48

Propylene oxide

C3H6O

1.9

24.0

-37

420

T2

IIB

2.01

Stibine

SbH3

-

-

-

-

-

-

4.31

Styrene

C8H8

1.1

8.0

30

490

T1

IIA

3.59

Sulphur dioxide

SO2

-

-

-

-

-

-

2.21

Sulphur hexafluoride

SF6

-

-

-

-

-

-

5.04

Tetrafluoroethane (R143a)

C2H2F4

-

-

-

-

-

-

3.45

Tetrahydrofuran (THF)

C4H8O

1.5

12.4

-20

224

T3

IIB

3.53

Toluene

C7H8

1.1

7.6

4

535

T1

IIA

3.18

Xylenes

C8H10

1.0

7.6

30

464

T1

IIA

3.67