Minimum Ignition Data by Product

Definition: the minimum energy that can ignite a mixture of a specified flammable Material with air or oxygen, measured by a standard procedure.

Depending on the specific application, there are several standard procedures for determining MIE of dust clouds, solvent vapours and gases. The common element in all procedures is that the energy is generated by an electrostatic spark discharge released from a capacitive electrical circuit. The exact circuit components and the arrangement of electrodes between which sparks are generated are the principle differences between the methods. In the following table MIE is quoted for flammable substances mixed with air. A reference is provided to indicate the source of the data. MIE values are provided for guidance only. Please check references for specific measurement conditions. Texene LLC makes no claims for the accuracy of the data and accepts no liability for any use of the data.

Substance MIE(mJ) Ref. Substance MIE(mJ) Ref. Substance MIE(mJ) Ref.
ABS 30 3 dinitrobenzamide 45 3 phenol formaldehyde 10-6000 3
Acetaldehyde 0.37 1 dinitrobenzoic acid 45 3 phosphorus (red) 0.2 1
Acetaldehyde 0.36 3 dinitro-sym-diphenylurea 60 3 phthalic anhydride 15 1
Acetone 1.15 1 dinitrotoluamide 15 3 PMMA 15-20 3
acetyl cellulose 15 1 dioxane 0.3 2 polyacrylonitrile 20 3
Acetylene 0.017 1 di-(tert)-butylperoxide 0.5 2 polycarbonate 25 1
Acrolein 0.13 1 di-(tert)-butylperoxide 0.41 3 polyethylene 10 1
Acrylonitrile 0.16 1 epoxy resin 15 1 polyethylene 70 3
adipic acid 60 1 ethane 0.24 1 polyethylene teraphthalate 35 3
alfalfa meal 320-5100 3 ethane 0.26 3 polypropylene 25-400 3
allyl chloride 0.78 3 ethene 0.07 2 polystyrene 40-120 3
Aluminium 50 1 ether 0.19 2 polyvinyl acetate 160 3
aluminium stearate 15 1 ethyl acetate 1.42 1 polyvinyl acetate alcohol 120 3
Ammonia 680 2 ethyl amine 2.4 1 polyvinyl butyral 10 3
Antimony 1920 3 ethyl cellulose 10 1 potato starch 20 1
Aspirin 25-30 3 ethyl chloride <0.3 2 potato starch 25 3
Aziridine 0.48 2 ethylene 0.07 3 propane 0.25 1
Benzene 0.20 1 ethylene oxide 0.06 1 propane 0.26 3
Benzene 0.22 3 ethylene oxide 0.065 2 propene 0.28 2
bisphenol-A 1.8 4 ethylene oxide 0.062 3 propionaldehyde 0.4 2
black powder 320 3 flour, cake 25-80 3 propylchloride 1.08 1
Boron 60 3 furan 0.22 1 propylene 0.28 1
1,3-butadiene 0.13 1 gasoline 0.8 3 propylene oxide 0.13 1
Butane 0.25 1 grain dust 30 3 propylene oxide 0.14 3
Butane 0.26 3 grass seed 60-260 3 pyrethrum 80 3
n-butyl chloride 0.33 3 hemp 30 1 rayon 240 3
Cadmium 4000 3 heptane 0.24 1 rice 40 1
carbon monoxide <0.3 2 hexamethylenetetramine 10 1 rice 40-120 3
carbon disulphide 0.009 1 hexane 0.24 1 rubber (hard) 30 1
carbon disulphide 0.015 3 hexane 0.29 3 SAN 30 3
Casein 60 1 hydrogen 0.011 1 shellac 10 1
Cellulose 35 1 hydrogen 0.017 3 silicon 100 3
cellulose acetate 20-50 3 hydrogen sulphide 0.068 1 soap 60 1
Charcoal 20 3 hydrogen sulphide 0.077 3 soap 60-120 3
Chromium 140 3 isooctane 1.35 1 soy flour 100-460 3
Cinnamon 30 1 isopentane 0.21 1 sugar 30 1
Coal 40 1 isopentane 0.25 3 sulphur 15 1
coal, pittsburg 250 3 isopropyl alcohol 0.65 1 tantalum 120 3
Cocoa 100 1 isopropyl amine 2.0 1 tetrafluoroethylene 3.5 3
Cocoa 100-180 3 isopropyl chloride 1.55 1 tetrahydrofuran 0.54 1
Coffee 160 3 isopropyl chloride 1.08 3 tetrahydropyran 0.22 1
Copal 30 1 isopropyl ether 1.14 2 thiophene 0.39 1
cork powder                      45 1 isopropyl mercaptan 0.53 1 thorium 5 1
cork powder 35-100 3 lignin 20 1 tin 80 3
corn meal 40 1 lycopodium 50 3 titanium 40 1
corn flour 20 1 magnesium 80 1 titanium 25 3
corn starch 30-60 3 magnesium 40 3 TNT 75 3
cotton (filler) 25 1 manganese 305 3 toluene 0.24 3
cotton linters 1920 3 melamine formaldehyde 50-320 3 trichloroethylene 295 3
cyclohexane 0.22 1 methane 0.28 1 triethyl amine 0.75 1
cyclopentane 0.54 1 methane 0.3 3 triethyl amine 1.15 3
cyclopentane 0.24 3 methanol 0.14 1 2,2,3-trimethyl butane 1.0 1
1,3-cyclopentadiene 0.67 1 methyl acetylene 0.11 1 uranium 45 1
cyclopropane 0.17 1 methyl acetylene 0.115 3 urea formaldehyde 80-1280 3
cyclopropane 0.18 3 methylal 0.5 2 vanadium 60 3
dextrine 40 1 methyl cyclohexane 0.27 1 vinyl acetate 0.7 1
dichlorosilane 0.015 3 methylene chloride 10000 1 vinyl acetylene 0.082 1
diethyl ether 0.19 1 methyl ethyl ketone 0.53 1 vinyl chloride <0.3 2
diethyl ether 0.2 3 methylformate 0.5 2 wheat flour 50 1
2,3-dihydopyran 0.36 1 methylmethacrylate 15 1 wheat starch 20 1
diisobutylene 0.96 1 nitrostarch 40 3 wheat starch 25-60 3
diisopropyl ether 1.14 1 nylon 20 1 wood bark 40-60 3
dimethoxymethane 0.42 3 nylon 20-30 3 wood (filler) 20 1
dimethyl amine <0.3 2 paper dust 20-60 3 wood flour 30-40 3
2,2-dimethyl butane 0.25 1 paraformaldehyde 20 1 m-, o- & p-xylene 0.2 3
dimethyl ether 0.29 1 pentaerythritol 10 1 yeast 50 3
2,2-dimethyl propane 1.57 1 pentane 0.22 1 zinc 960 3
dimethyl sulphide 0.5 2 2-pentene 0.18 1 zirconium 5 1
dimethyl sulphide 0.48 3 petroleum ether (benzine) 0.25 3 zirconium 15 3

References

1. Haase, H. (1977) Electrostatic Hazards, Their Evaluation and Control, Verlag, Chemie, Weinheim.

2. Berufsgenossenschaften, Richtlinien Statische Elektrizität, ZH1/200 (1980), Bonn. Buschman, C.H. (1962) De Veiligheid 38: 20-28.

3. Babrauskak, V. (2003) Ignition Handbook, Fire Science Publishers, Issaquah, WA.

4. Bisphenol-A: A Safety & Handling Guide, Publication Number AE-154, Bisphenol-A Global Industry Group.

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