Physical Hazards
| Substance Name | CAS # | Pyrophoric | Water Reactive | Explosive |
| Acetyl bromide | 110-22-5 | X | ||
| Acetyl chloride | 75-36-5 | X | ||
| Acetyl peroxide | 110-22-5 | X | ||
| Aluminum alkyl halides | -- | X | X | |
| Aluminum alkyl hydrides | -- | X | X | |
| Aluminum alkyls | -- | X | ||
| Aluminum aminoborohydride | -- | X | ||
| Aluminum borohydride | 16962-07-5 | X | X | |
| Aluminum carbide | 1299-86-1 | X | ||
| Aluminum ferrosilcon powder | 12003-41-7 | X | ||
| Aluminum hydride | 7784-21-6 | X | X | |
| Aluminum phosphide | 20859-73-8 | X | ||
| Aluminum powder | 7429-90-5 | X | X | |
| Aluminum silicon powder | -- | X | X | |
| Ammonium perchlorate | 7790-98-9 | X | ||
| Ammonium picrate | 131-74-8 | X | ||
| Amyl trichlorosilane | 107-72-2 | X | ||
| Antimony pentachloride | 7647-18-9 | X | ||
| Antimony, triethyl | 617-85-6 | X | ||
| Antimony, trimethyl | 594-10-5 | X | ||
| Arsenic trichloride | 7784-34-1 | X | ||
| Arsenic, triethyl | 617-75-4 | X | ||
| Arsenic, trimethyl | 593-88-4 | X |
| Barium azide | 18810-58-7 | X | ||
| Barium carbide | 12070-27-8 | X | ||
| Barium hydride | 13477-09-3 | X | ||
| Barium sulfide | 21109-95-5 | X | ||
| Benzene, 1,2-epoxyethyl | 96-09-3 | X | ||
| Benzoyl chloride | 98-88-4 | X | ||
| Benzoyl peroxide | 94-36-0 | X | ||
| Benzyl sodium | 1121-53-5 | X | ||
| Beryllium | 7440-41-7 | X | ||
| Beryllium borohydride | 30374-53-9 | X | ||
| Beryllium hydride | 7787-52-2 | X | ||
| Bis(ethylamino) siloxenebis-cyclopentadienyl manganese | -- | X | ||
| Bis-dimethylstibine oxide | -- | X | ||
| Bismuth | 7440-69-9 | X | ||
| Boron | 7440-42-8 | X | ||
| Boron arsenotribromideboron chloride tetramer | -- | X | ||
| Boron triazide | -- | X | ||
| Boron tribromide | 10294-33-4 | X | ||
| Boron trifluoride dimethyl etherate | 353-42-4 | X | ||
| Boron, triethyl | 97-94-9 | X | ||
| Boron, trimethyl | 593-90-8 | X | ||
| Bromine pentafluoride | 7789-30-2 | X | ||
| Bromoacetylene | 593-61-3 | X | ||
| Bromoethyne | 593-61-3 | X | ||
| Bromopropyne | 106-96-7 | X | ||
| Bromosilane | 13465-73-1 | X | ||
| Butadiene | 106-99-0 | X | ||
| Butanone peroxide | 1338-23-4 | X | ||
| Butyl lithium | 109-72-8 | X | ||
| Cacodyl | 471-35-2 | X | ||
| Cacodyl arsine | -- | X | ||
| Cacodyl chloride | 557-89-1 | X | ||
| Cacodyl sulfide | 591-10-6 | X | ||
| Cadmium | 7440-43-9 | X | ||
| Cadmium amide | 22750-53-4 | X | ||
| Cadmium nitride | 12380-95-9 | X | ||
| Calcium | 7440-70-2 | X | X | |
| Calcium carbide | 75-20-7 | X | X | |
| Calcium cyanamide | 156-62-7 | X | ||
| Calcium hydride | 7789-78-8 | X | X | |
| Calcium hypochlorite | 7778-54-3 | X | ||
| Calcium magnesium silicon | -- | X | ||
| Calcium nitride | 12013-82-0 | X | ||
| Calcium phosphide | 1305-99-3 | X | ||
| Calcium silicide | 12737-18-7 | X | ||
| Calcium sulfide | 20548-54-3 | X | ||
| Carbon disulfide | 75-15-0 | X | ||
| Carbon hexachloride | 98299-61-7 | X | ||
| Carbon trichloride | -- | X | ||
| Cerium (powder or turnings) | 7440-45-1 | X | X | |
| Cerium hydride | 13864-02-3 | X | ||
| Cerium nitride | 25764-08-3 | X | ||
| Cesium | 7440-46-2 | X | X | |
| Cesium amide | 22205-57-8 | X | ||
| Cesium hydride | 13772-47-9 | X | ||
| Cesium oxide | 20281-00-9 | X | ||
| Cesium phosphide | 113737-02-3 | X | ||
| Cesium silicide | 39293-43-1 | X | ||
| Charcoal | 16291-96-6 | X | ||
| Chlorine trifluoride | 7790-91-2 | X | ||
| Chloroacetylene | 593-63-5 | X | ||
| Chlorodimethyl arsine | 557-89-1 | X | ||
| Chloroethyne | 593-63-5 | X | ||
| Chlorosulfonic acid | 7790-94-5 | X | ||
| Chromium | 7440-47-3 | X | ||
| Chromium oxide | 12018-00-7 | X | ||
| Chromium-cobalt alloy | 11114-92-4 | X | ||
| Chromyl chloride | 14977-61-8 | X | ||
| Cobalt (powder) | 7440-48-4 | X | ||
| Cobalt abietate | 26998-20-9 | X | ||
| Cobalt nitride | 10141-05-6 | X | ||
| Cobaltous resinate | 68956-82-1 | X | ||
| Copper (dust) | 7440-50-8 | X | ||
| Copper hydride | 13517-00-5 | X | ||
| Cumene peroxide | 80-15-9 | X | ||
| Cupric phosphide | 12019-57-7 | X | ||
| Decaborane | 17702-41-9 | X | ||
| Diacetylene | 460-12-8 | X | ||
| Diamidophosphorous acid | 10043-91-1 | X | ||
| Diazirine | 157-22-2 | X | ||
| Diazodinitrophenol | 4682-03-5 | X | ||
| Diborane | 19287-45-7 | X | ||
| Dibutyl boron chloride | 1730-69-4 | X | ||
| Dibutyl chloroborane | -- | X | ||
| Dibutyl magnesium | 1191-47-5 | X | ||
| Di-chloroacetylene | 7572-29-4 | X | ||
| Diethyl arsine | 692-42-2 | X | ||
| Diethyl beryllium | 542-63-2 | X | ||
| Diethyl cadmium | 592-02-9 | X | ||
| Diethyl dichlorosilane | -- | X | ||
| Diethyl phosphine | 627-49-6 | X | ||
| Diethyl zinc | 557-20-0 | X | X | |
| Diethylaluminum bromide | 760-19-0 | X | ||
| Diethylaluminum chloride | 96-10-6 | X | ||
| Diethylaluminum hydride | 871-27-2 | X | ||
| Difluorourea | 1510-31-2 | X | ||
| Digermane | 13818-89-8 | X | ||
| Diisobutyl aluminum chloride | 1779-25-5 | X | ||
| Diisobutyl aluminum hydride | 1191-15-7 | X | ||
| Diisopropylberyllium | 15721-33-2 | X | ||
| Dimethyl allyl arsine | -- | X | ||
| Dimethyl arsine | 593-57-7 | X | ||
| Dimethyl beryllium | 506-63-8 | X | ||
| Dimethyl cadmium | 506-82-1 | X | ||
| Dimethyl dichlorosilane | 1066-35-9 | X | ||
| Dimethyl magnesium | 2999-74-8 | X | ||
| Dimethyl manganese | 33212-68-9 | X | ||
| Dimethyl phosphine | 676-59-5 | X | ||
| Dimethyl phosphoramidate | 597-07-9 | X | ||
| Dimethylchloroarsine | 557-89-1 | X | ||
| Dimethylzinc | 544-97-8 | X | ||
| Dinitrophenol | 51-28-5 | X | ||
| Dinitrophenylhydrazine | 119-26-6 | X | ||
| Dinitroresorcinol | 616-74-0 | X | ||
| Diphosphine | 13445-50-6 | X | ||
| Dipicryl amine | 131-73-7 | X | ||
| Dipicryl sulfide | 28930-30-5 | X | ||
| Dipropyl aluminum hydride | -- | X | ||
| Dipropyl chloroborane | 22086-53-9 | X | ||
| Dipropyl zinc | 628-91-1 | X | ||
| Disilane | 1590-87-0 | X | ||
| Disilylamino diborane | -- | X | ||
| Disilylamino dichloroborane | -- | X | ||
| Disulfur dinitride | 25474-92-4 | X | ||
| Divanadium dodecacarbonyl | -- | X | ||
| Divinyl zinc | 1119-22-8 | X | ||
| Dodecanoyl peroxide | 105-74-8 | X | ||
| Ethanoyl bromide | 506-96-7 | X | ||
| Ethanoyl chloride | 75-36-5 | X | ||
| Ethyl aluminum sesquichloride | 12075-68-2 | X | ||
| Ethyl lithium | 811-49-4 | X | ||
| Ethyl nitrite | 109-95-5 | X | ||
| Ethyl pentaborane | 28853-06-7 | X | ||
| Ethyl trichlorosilane | 115-21-9 | X | ||
| Ethylaluminum dichloride | 563-43-9 | X | ||
| Ethyldichlorosilane | 1789-58-8 | X | ||
| Ethylene oxide | 75-21-8 | X | ||
| Europium (powder) | 7440-53-1 | X | ||
| Ferrosilicon | 8049-17-0 | X | ||
| Gallium hydride | 13572-93-5 | X | ||
| Germanium hydride | 7782-65-2 | X | ||
| Germanium tetrahydride | 7782-65-2 | X | ||
| Hafnium (powder) | 7440-58-6 | X | ||
| Hafnium borohydride | -- | X | ||
| Hexaborane | 2377-80-2 | X | ||
| Hexachlorodisilane | 13465-77-5 | X | ||
| Hydrogen phosphide | 10028-24-7 | X | ||
| Iron pentacarbonyl | 13463-40-6 | X | ||
| Iron powder | 7439-89-6 | X | ||
| Lauric peroxide | 105-74-8 | X | ||
| Lead azide | 13424-46-9 | X | ||
| Lead imide | -- | X | ||
| Lithium | 7439-93-2 | X | X | |
| Lithium alkyls | -- | X | ||
| Lithium aluminum hydride | 16853-85-3 | X | X | |
| Lithium aluminum tri- tert -butoxyhydride | 17476-04-9 | X | ||
| Lithium amide | 7782-89-0 | X | ||
| Lithium azide | 19597-69-4 | X | ||
| Lithium borohydride | 16949-15-8 | X | X | |
| Lithium dimethylamide | 3585-33-9 | X | ||
| Lithium ferrosilicon | 70399-13-2 | X | ||
| Lithium hydride | 7580-67-8 | X | X | |
| Lithium nitride | 26134-62-3 | X | ||
| Lithium phosphide | 12057-29-3 | X | ||
| Lithium silicide | 68848-64-6 | X | X | |
| Lithium tetramethyl borate | 2169-38-2 | X | ||
| Magnesium (powder, beads or turnings) | 7439-95-4 | X | X | |
| Magnesium alkyls | -- | X | ||
| Magnesium aluminum phosphide | -- | X | ||
| Magnesium diamide | 7803-54-5 | X | ||
| Magnesium hydride | 7693-27-8 | X | X | |
| Magnesium phosphide | 12057-74-8 | X | X | |
| Magnesium silicide | 22831-39-6 | X | ||
| Magnesium, diethyl | 557-18-6 | X | ||
| Magnesium, diphenyl | 555-54-4 | X | ||
| Maneb | 12427-38-2 | X | ||
| Manganese | 7439-96-5 | X | X | |
| Manganese heptoxide | 12057-92-0 | X | ||
| Mercury azide | 38232-63-2 | X | ||
| Mercury fulminate | 628-86-4 | X | ||
| Methyl aluminum sesquibromide | 12263-85-3 | X | ||
| Methyl aluminum sesquichloride | 12542-85-7 | X | ||
| Methyl copper | -- | X | ||
| Methyl ethyl ketone peroxide | 1338-23-4 | X | ||
| Methyl lithium | 917-54-4 | X | ||
| Methyl magnesium bromide | -- | X | ||
| Methyl phosphine | 593-54-4 | X | ||
| Methyl trichlorosilane | 75-79-6 | X | ||
| Methyldichlorosilane | 75-54-7 | X | ||
| Methylene dilithium | -- | X | ||
| Methylethyliodoarsine | 65313-31-7 | X | ||
| Methylhydrazine | 60-34-4 | X | ||
| Monochlorodiborane | -- | X | ||
| n -propyl lithium | 2417-93-8 | X | ||
| Nickel carbonyl | 13463-39-3 | X | ||
| Nickel lanthanum alloy | -- | X | ||
| Nitrocellulose | 9004-70-0 | X | ||
| Nitrogen trifluoride | 7783-54-2 | X | ||
| Nitrogen triiodide | 13444-85-4 | X | ||
| Nitroglycerine | 55-63-0 | X | ||
| Nitroguanidine | 556-88-7 | X | ||
| Nitromethane | 75-52-5 | X | ||
| Nitrosilane | -- | X | ||
| Nitrourea | 556-89-8 | X | ||
| Oxodisilane | 22755-00-6 | X | ||
| Pentaborane | 19624-22-7 | X | ||
| Pentamethyl aluminum hydride | -- | X | ||
| Phenyl cyclotetramethylene borine | -- | X | ||
| Phenyl lithium | 591-51-5 | X | ||
| Phenylsilver | 5274-48-6 | X | ||
| Phosphine | 7803-51-2 | X | ||
| Phosphorus | 7723-14-0 | X | ||
| Phosphorus oxychloride | 10025-87-3 | X | ||
| Phosphorus pentachloride | 10026-13-8 | X | X | |
| Phosphorus pentasulfide | 7723-14-0 | X | X | |
| Phosphorus sesquisulfide | 1314-85-8 | X | X | |
| Phosphorus trichloride | 7719-12-2 | X | ||
| Phosphorus trioxide | 1314-24-5 | X | ||
| Picramide | 489-98-5 | X | ||
| Picric acid | 88-89-1 | X | ||
| Picryl chloride | 88-88-0 | X | ||
| Picryl sulfonic acid | 2508-19-2 | X | ||
| Potassium | 7440-09-7 | X | X | |
| Potassium arsenic alloy | -- | X | ||
| Potassium borohydride | 13762-51-1 | X | ||
| Potassium carbide | 22754-96-7 | X | ||
| Potassium carbonyl | 12397-35-2 | X | ||
| Potassium graphite | 12081-88-8 | X | ||
| Potassium hydride | 7693-26-7 | X | ||
| Potassium nitride | 29285-24-3 | X | ||
| Potassium nitromethane | -- | |||
| Potassium peroxide | 17014-71-0 | X | ||
| Potassium phosphide | 20770-41-6 | X | X | |
| Potassium sodium alloys | 11135-81-2 | X | ||
| Potassium-antimony alloy | -- | X | ||
| Propargyl bromide | 106-96-7 | X | ||
| Prosiloxane | -- | X | ||
| Pyridinium perchlorate | 15598-34-2 | X | ||
| Rubidium | 7440-17-7 | X | X | |
| Rubidium hydride | 13446-75-8 | X | ||
| Silane | 7803-62-5 | X | ||
| Silyl phosphine | X | |||
| Sodium | 7440-23-5 | X | X | |
| Sodium aluminum hydride | 13770-96-2 | X | X | |
| Sodium amalgam | -- | X | ||
| Sodium amide | 7782-92-5 | X | ||
| Sodium borohydride | 16940-66-2 | X | ||
| Sodium carbide | 2881-62-1 | X | ||
| Sodium hydrazide | 13598-47-5 | X | ||
| Sodium hydride | 7646-69-7 | X | X | |
| Sodium hydrosulfite | 7775-14-6 | X | ||
| Sodium lead alloy | 12740-44-2 | X | ||
| Sodium methylate | 124-41-4 | X | ||
| Sodium nitromethane | -- | X | ||
| Sodium phosphamide | -- | X | ||
| Sodium phosphide | 24167-76-8 | X | X | |
| Sodium silicide | 152379-81-2 | X | ||
| Sodium sulfide | 1313-82-2 | X | ||
| Sodium-potassium alloy | 11135-81-2 | X | ||
| Stannic phosphide | 25324-56-5 | X | X | |
| Strontium | 7440-24-6 | X | X | |
| Strontium azide | 19465-89-5 | X | ||
| Strontium hydride | 13598-33-9 | X | ||
| Strontium phosphide | 12504-13-1 | X | ||
| Succinic peroxide | 12-23-9 | X | ||
| Sulfur (powder) | 7704-34-9 | X | ||
| Sulfur trioxide | 7446-11-9 | X | ||
| Sulfuryl chloride | 7791-25-5 | X | ||
| Tetraborane | 18283-93-7 | X | ||
| Tetrachlorodiborane | 13701-67-2 | X | ||
| Tetramethyl diborane | 21482-59-7 | X | ||
| Tetramethyl digalline | -- | X | ||
| Tetramethyl silane | 75-76-3 | X | ||
| Tetranitroaniline | 3698-54-2 | X | ||
| Tetraphenyl diarsine | -- | X | ||
| Thiophosphoryl fluoride | 2404-52-4 | X | ||
| Thorium | 7440-29-1 | X | ||
| Thorium hydride | 140004-84-0 | X | ||
| Thorium oxysulfide | -- | X | ||
| Titanium dibromide | 13783-04-5 | X | ||
| Titanium dichloride | 10049-06-6 | X | ||
| Titanium diiodide | 13783-07-8 | X | ||
| Titanium monoxide | 12137-20-1 | X | ||
| Titanium trichloride | 7705-07-9 | X | ||
| Tri- n -butylaluminum | 1116-70-7 | X | ||
| Triazido borine | -- | X | ||
| Tribromoborane | 1024-33-4 | X | ||
| Tribromosilane | 7789-57-3 | X | ||
| Tributyl phosphine | 213-651-2 | X | ||
| Tributylborane | 122-56-5 | X | ||
| Trichlorosilane | 10025-78-2 | X | X | |
| Triethyl aluminum | 97-93-8 | X | ||
| Triethyl aluminum etherate | -- | X | ||
| Triethyl bismuth | 617-77-6 | X | ||
| Triethyl diborane | 62133-36-2 | X | ||
| Triethyl indium | 923-34-2 | X | ||
| Triethyl tellurium | -- | X | ||
| Triethylantimony | 617-85-6 | X | ||
| Triethylborane | 97-94-9 | X | ||
| Triethylstibine | 617-85-6 | X | ||
| Trigermane | 14691-44-2 | X | ||
| Triisobutylaluminum | 100-99-2 | X | ||
| Trimethyl antimony | 594-10-5 | X | X | |
| Trimethyl arsine | 593-88-4 | X | X | |
| Trimethyl bismuth | 593-91-9 | X | ||
| Trimethyl gallium | 1445-79-0 | X | X | |
| Trimethyl indium | 3385-78-2 | X | ||
| Trimethyl phosphine | 594-09-2 | X | ||
| Trimethyl thallium | 3003-15-4 | X | ||
| Trimethylaluminum | 75-24-1 | X | ||
| Trimethylaluminum etherate | -- | |||
| Trimethylchlorosilane | 75-77-4 | X | ||
| Trinitroaniline | 489-98-5 | X | ||
| Trinitroanisole | 606-35-9 | X | ||
| Trinitrobenzene | 99-35-4 | X | ||
| Trinitrobenzenesulfonic acid | 2508-19-2 | X | ||
| Trinitrobenzoic acid | 129-66-8 | X | ||
| Trinitrocresol | 602-99-3 | X | ||
| Trinitronaphthalene | 55810-17-8 | X | ||
| Trinitrophenol | 88-89-1 | X | ||
| Trinitroresorcinol | 82-71-3 | X | ||
| Trinitrotoluene | 118-96-7 | X | ||
| Triphenyl aluminum | 841-76-9 | X | ||
| Triphenyl tungsten | -- | |||
| Tripropyl antimony | 5613-69-4 | X | ||
| Tripropyl boron | 1116-61-6 | X | ||
| Tripropyl indium | 3015-98-3 | X | ||
| Tripropylaluminum | -- | X | ||
| Tris(trifluoromethyl) phosphine | 432-04-2 | X | ||
| Tris(trimethyl silyl) phosphine | 15573-38-3 | X | ||
| Trisilane | 7783-26-8 | X | ||
| Trisilyl arsine | 15100-34-6 | X | ||
| Trisilyl phosphine | 15110-33-5 | X | ||
| Trisilylamine | 13862-16-3 | X | X | |
| Trisilylamine | 13862-16-3 | X | ||
| Trisulfur dinitrogen dioxide | -- | X | ||
| Trivinyl bismuth | -- | X | ||
| Trivinyl stibine | -- | X | ||
| Urea nitrate | 124-47-0 | X | ||
| Zinc (powder or dust) | 7440-66-6 | X | X | |
| Zinc dimethyl | 544-97-8 | X | ||
| Zinc isoamyl | 21261-07-4 | X | ||
| Zinc isobutyl | 126409-67-6 | X | ||
| Zinc phosphide | 1314-84-7 | X | ||
| Zirconium | 7440-67-7 | X | ||
| Zirconium borohydride | 12370-59-1 | X | ||
| Zirconium carbonitride | -- | X | ||
| Zirconium dibromide | -- | X |