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OCR for page 49
Bureau of Mine s Report of Investigations Ref erence Line Number Number in Reference Material APPENDIX D DUSTS WITH CLOUD IGNITION TEMPERATURES LOWER THAN THEIR LAYER IGNITION TEMPERATURES - 6 8 8 8 8 8 4 4 4 4 4 4 4 4 4 4 5 5 5 55 5 5 5 5 5 5 5 5 55 5 s 7 7 7 7 7 3 3 3 Ignition Temperature, C Cloud 59 9 59 70 88 149 60 93 122 143 182 & 183 201 208 228 273 1 5 6 7 8 12 29 33 35 84 123 124 167 176 77 190 194 195 202 204 205 241 249 266 281 311 4 7 44 55 56 61 63 77 83 101 112 132 140 171 174 178 179 180 Layer Asphalt, blown petroleum resin Dextrin, USP Dete Agent Soap powder Anthracene and potassium perchlorate Aluminum Monochlorotrif luoroethylene polymer Styrene-hydrocarbon monomer copolymer Vinyl multipolymer containing monomeric hi ny lidene cyanide Urea-formaldehyde molding compound Phenol-formaldehyde derivative Gum, manila Sodium re sinate Styrene-maleic anhydride copolymer Para oxybenzaldehyde Aluminum, atomized Aluminum, atomized Aluminum, atomized Alumi num, atomi zed Alumi num, atomi zed Aluminum, atomized Aluminum, atomi zed Aluminum, atomized Aluminum, atomi zed Aluminum, f luid milled Iron, carbon reduced Iron, carbon reduced Ma nganese, e lectro lytic Silicon, milled Si licon Thorium Titanium Titanium Titanium Titanium, hy dride Titanium, hydride Aluminum-iron alloy Aluminum-magnesium alloy, milled Calcium silicide Ferrotitanium, low carbon Mangane se ore, su lf ide Aluminum ac etate Benzoic acid Steari c ac id Sulfur Sulfur Alkylarylsulfonate, sodium Amino ac ids 2-Amino-5-nit rothiazo le Duomycin fermentation re sidue Vitamin B2 powder Diazotized meta-nitro-para toluidine coupled with beta naphthol Benzethonium chloride Dichlorodiphenyltrichloroethane ( DDT ) Sodium 2, 4-dichlorophenoxyethy 1 sulfate 3, 4, 5, 6-Tetrahydro-3, 5-dimethyl-2H-1, 3, 5- thi adia zinc-2 -thione Sucrose, chemically pure Sugar, powdered Sugar, raw, light brown 510 410 540 430 530 550 600 460 500 490 460 360 380 470 380 650 550 700 640 640 790 830 700 700 550 450 450 450 780 850 270 330 470 380 440 480 870 430 690 370 330 560 560 420 210 190 540 670 400 550 500 380 380 650 580 310 420 370 350 550 440 570 600 700 660 720 470 510 530 480 390 480 490 430 760 840 740 770 750 860 900 830 900 630 500 530 470 950 900 280 510 480 660 500 540 900 480 800 400 350 640 680 440 260 220 570 700 410 600 510 410 410 700 600 330 470 400 460 49 1~ ~

OCR for page 49