Acutely Hazardous Chemicals
Below is a list of High Hazard chemicals, "P" coded wastes, regulated by the Massachusetts Department of Environmental Protection (DEP). Last Amended Feb 27, 2004. Please take a moment to scan this list for any chemicals you typically use in the course of your research, or that may be sitting in your chemical inventories.
MBL investigators should use caution when ordering these substances, assuring that only amounts specifically required for experiments. Disposal costs for these chemicals may be extremely high and may be passed on to the end user. Further, MBL is permitted to have an extremely limited amount of these "P-coded" wastes in our Main Storage area. Before adding a new chemical to your labs inventory, please review this list and ensure that your new chemical is not listed.
Chemicals that ARE on this list should be ordered through the stockroom only, to ensure that campus-wide inventories of these products is kept to a minimum.
The table below is reproduced directly from Mass Hazardous Waste Regulations: 310CMR 30.0 which is available here.
Hazardous Waste No. |
Chemical Abstracts Numbers |
Substance |
P023 | 1074-20-0 | Acetaldehyde, chloro- |
P002 | 591-08-2 | Acetamide, N-(aminothioxomethyl)- |
P057 | 640- 19-7 | Acetamide, 2-fluoro- |
P058 | 62-74-8 | Acetic acid, fluoro-, sodium salt |
P002 | 591-08-2 | I-Acetyl-2-thiourea |
P003 | 107-02-8 | Acrolein |
P070 | 116-06-3 | Aldicarb |
P004 | 309-00-2 | Aldrin |
P005 | 107-18-6 | Allyl alcohol |
P006 | 20859-73-8 | Aluminum phosphide (R,T) |
P007 | 763-96-4 | 5-(An-dnomethyl)-3-isoxazolol |
P008 | 504-24-5 | 4-Aminopyridine |
P009 | 131-74-8 | Ammonium picrate (R) |
P119 | 7803-55-6 | Ammonium vanadate |
P099 | 506-61-6 | Argentate(I-), bis(cyano-C)-, potassium |
P010 | 7778-39-4 | Arsenic acid H3 AsO4 |
P012 | 1327-53-3 | Arsenic oxide As2 O3 |
P011 | 1303-28-2 | Arsenic oxide As2 O5 |
P011 | 1303-28-2 | Arsenic pentoxide |
P012 | 1327-53-3 | Arsenic trioxide |
P038 | 692-42-2 | Arsine, diethyl- |
P036 | 696-28-6 | Arsonous dichlotide, phenyl- |
P054 | 151-56-4 | Aziridine |
P067 | 75-55-8 | Aziridine, 2-methyl- |
P013 | 542-62-1 | Barium cyanide |
P024 | 106-47-8 | Benzenamine, 4-chloro- |
P077 | 100-01-6 | Benzenamine, 4-nitro- |
P028 | 100-44-7 | Benzene, (chloromethyl)- |
P042 | 51-43-4 | 1,2-Benzenediol, 4-[l-hydroxy-2-(methylamino)- ethyl]-, (R)- |
P046 | 122-09-8 | Benzeneethanamine, alpha,alpha-dimethyl- |
P014 | 108-98-5 | Benzenethiol |
P001 | 81-81-2* | 2H-1-Benzopyran-2-one, 4-hydroxy-3-(3-oxo-I-phenylbutyl)-, & salts, when present at concentrations greater than 0.3% |
P028 | 100-44-7 | Benzyl chloride |
P015 | 7440-41-7 | Beryllium |
P017 | 598-31-2 | Bromoacetone |
P018 | 357-57-3 | Brucine |
P045 | 2-Butanone, 3,3-dimethyl-l-(methylthio)-, O-[(methylamino)carbonyll oxime | |
P021 | 592-01-8 | Calcium cyanide |
P021 | 592-01-8 | Calcium cyanide Ca(CN)2 |
P022 | 75-15-0 | Carbon disulfide |
P095 | 75-44-5 | Carbonic dichloride |
P023 | 107-20-0 | Chloroacetaldehyde |
P024 | 106-47-8 | p-Chloroaniline, |
P026 | 5344-82-1 | 1-(o-Chlorophenyl)thiourea |
P027 | 542-76-7 | 3-Chloropropionitrile |
P029 | 544-92-3 | Copper cyanide |
P029 | 544-92-3 | Copper cyanide CUCN |
P030 | ------- | Cyanides (soluble cyanide salts), not otherwise specified |
P031 | 460-19-5 | Cyanogen |
P033 | 506-77-4 | Cyanogen chloride |
P033 | 506-77-4 | Cyanogen chloride CNCI |
P034 | 131-89-5 | 2-Cyclohexyl-4,6-dinitrophenol |
P016 | 542-88-1 | Dichloromethyl ether |
P036 | 696-28-6 | Dichlorophenylarsine |
P037 | 60-57-1 | Dieldrin |
P038 | 692-42-2 | Diethylarsine |
P041 | 311-45-5 | Diethyl-p-nitrophenyl phosphate |
P040 | 297-97-2 | O,O-Diethyl 0-pyrazinyl phosphorothioate |
P043 | 55-91-4 | Diisopropylfluorophosphate (DFP) |
P004 | 30900002 | 1,4,5,8-Dimethanonaphthalene, 1,2,3,4,10,10- hexachloro- 1,4,4a,5,8,8a hexahydro-, (1 alpha,4alpha,4abeta,5alpha,8alpha,8abeta)- |
P060 | 465-73-6 | 1,4,5,8-Dimethanonaphthalene, 1,2,3,4,10,10- hexachloro- 1,4,4a,5,8,8a-hexahydro-, (1alpha,4alpha,4abeta,5beta,8beta,8abeta)- |
P037 | 60-57-1 | 2,7:3,6-Dimethanonaphth[2,3-bloxirene, 3,4,5,6,9,9-hexachloro- 1a,2,2a,3,6,6a,7,7a-octahydro-, (laalpha,2beta,2aalpha,3beta, 6beta,6aalpha,7beta,7aalpha)- |
P051 | 72-20-8* | 2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-hexacMoro-la,2,2a,3,6,6a,7,7a-octahydro-, (I aalpha,2beta,2abeta,3alpha,6alpha, 6abeta,7beta,7aalpha)-, & metabolites |
P044 | 60-51-5 | Dimethoate |
P046 | 122-09-8 | alpha,alpha-Dimethylphenethylan-dne |
P047 | 534-52-1* | 4,6-Dinitro-o-cresol, & salts |
P048 | 51-28-5 | 2,4-Dinitrophenol |
P020 | 88-85-7 | Dinoseb |
P085 | 152-16-9 | Diphosphoramide, octamethyl- |
P111 | 107-49-3 | Diphosphoric acid, tetraethyl ester |
P039 | 298-04-4 | Disulfoton |
P049 | 541-53-7 | Dithiobiuret |
P050 | 115-29-7 | Endosulfan |
P088 | 145-73-3 | EndothaE |
P051 | 72-20-8 | Endrin |
P051 | 72-20-8 | Endrin, & metabolites |
P042 | 51-43-4 | Epinephrine |
P031 | 460-19-5 | Ethanedinitrfle |
P066 | 167-77-5 | Ethanin-iidothioic acid, N-[[(methylan-dno)- carbonyl]oxy]-, methyl ester |
P101 | 107-12-0 | Ethyl cyanide |
P054 | 151-56-4 | Ethyleneimine |
P097 | 52-85-7 | Famphur |
P056 | 7782-41-4 | Fluorine |
P057 | 640-19-7 | Fluoroacetamide |
P058 | 62-74-8 | Fluoroacetic acid, sodium salt |
P065 | 628-86-4 | Fulminic acid, mercury(2+) salt (R,T) |
P059 | 76-44-8 | Heptachlor |
P062 | 757-58-4 | Hexaethyl tetraphosphate |
P116 | 79-19-6 | Hydrazinecarbothioamide |
P068 | 60-34-4 | Hydrazine, methyl- |
P063 | 74-90-8 | Hydrocyanic acid |
P096 | 74-90-8 | Hydrogen cyanide |
P060 | 7803-51-2 | Hydrogen phosphide |
P007 | 465-73-6 | Isodrin |
P092 | 2763-96-4 | 3(2H)-Isoxazolone, 5-(aminomethyl)- |
P065 | 62-38-4 | Mercury, (acetato-O)phenyl- |
P082 | 628-86-4 | Mercury fulminate (R,T) |
P064 | 62-75-9 | Methanan-dne, N-methyl-N-nitroso- |
P016 | 624-83-9 | Methane, isocyanato- |
P112 | 542-88-1 | Methane, oxybis[chloro- |
P118 | 509-14-8 | Methane, tetranitro- (R) |
P050 | 75-70-7 | Methanethiol, trichloro- |
&NBSP | 115-29-7 | 6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-, 3-oxide |
P059 | 76-44-8 | 4,7-Methano-IH-indene, 1,4,5,6,7,8,8 -heptachlOTo- 3a,4,7,7a-tetrahydro- |
P066 | 16752-77-5 | Methomyl |
P068 | 60-34-4 | Methyl hydrazine |
P064 | 624-83-9 | Methyl isocyanate |
P069 | 75-86-5 | 2-Methyllactonitrile |
P071 | 298-00-0 | Methyl parathion |
P072 | 86-88-4 | alpha-Naphthylthiourea |
P073 | 13463-39-3 | Nickel carbonyl |
P073 | 13463-39-3 | Nickel carbonyl Ni)CO)4 (T-4)- |
P074 | 557-19-7 | Nickel cyanide |
P074 | 557-19-7 | Nickel cyanide Ni(CN)2 |
P075 | 54-11-5* | Nicotine, & salts |
P076 | 10102-43-9 | Nitric oxide |
P077 | 100-01-6 | p-Nitroaniline |
P078 | 10102-44-0 | Nitrogen dioxide |
P076 | 10102-43-9 | Nitrogen oxide NO |
P078 | 10102-44-0 | Nitrogen oxide NO2 |
P081 | 55-63-0 | Nitroglycerine (R) |
P082 | 62-75-9 | N-Nitrosodimethylamine |
P084 | 4549-40-0 | N-Nitrosomethylvinylamine |
P085 | 152-16-9 | Octamethylpyrophosphoramide |
P087 | 20816-12-0 | Osmium oxide Os O4 (T-4)- |
P087 | 20816-12-0 | Osmium tetroxide |
P088 | 145-73-3 | 7-Oxabicyclo[2.2. 1]heptane-2,3-dicarboxylic acid |
P089 | 56-38-2 | Parathion |
P034 | 131-89-5 | Phenol, 2-cyclohexyl-4,6-dinitro- |
P048 | 51-28-5 | Phenol, 2,4-dinitro- |
P047 | 534-52-1* | Phenol, 2-methyl-4,6-dinitro-, & salts |
P020 | 88-85-7 | Phenol, 2-(l-methylpropyl)-4,6-dinitro- |
P009 | 131-74-8 | Phenol, 2,4,6-trinitro-, ammonium salt (R) |
P092 | 62-38-4 | Phenylmercury acetate |
P093 | 103-85-5 | Phenylthiourea |
P094 | 298-02-2 | Phorate |
P095 | 75-44-5 | Phosgene |
P096 | 7803-51-2 | Phosphine |
P041 | 311-45-5 | Phosphoric acid, diethyl 4-nitrophenyl ester |
P039 | 298-04-4 | Phosphorodithioic acid, O,O-diethyl S-[2- (ethylthio)ethyl] ester |
P094 | 298-02-2 | Phosphorodithioic acid, O,O-diethyl S-[(ethyl- thio)methyl] ester |
P044 | 60-51-5 | Phosphorodithioic acid, O,O-dimethyl S-[2- (methylan-dno)-2-oxoethyl] ester |
P043 | 55-91-4 | Phosphorofluoridic acid, bis(l-methylethyl) ester |
P089 | 56-38-2 | Phosphorothioic acid,_O,Q-diethyl O-(4-nitro- phenyl) ester |
P040 | 297-97-2 | Phosphorothioic acid, O,O-diethyl 0-pyrazinyl ester |
P097 | 52-85-7 | Phosphorothioic acid, O-[4-[(dimethylamino)-sulfonyl]phenyl] O,O-dimethyl ester |
P071 | 298-00-0 | Phosphorothioic acid, O,O-dimethyl O-(4-rdtro- phenyl) ester |
P110 | 78-00-2 | Plumbane, tetraethyl- |
P098 | 151-50-8 | Potassium cyanide |
P098 | 151-50-8 | Potassium cyanide K(CN) |
P099 | 506-61-6 | Potassium silver cyanide |
P070 | 116-06-3 | Propanal, 2-methyl-2-(methylthio)-, O-[(methyl- amino)carbonyl]oxime |
P101 | 107-12-0 | Propanenitrile |
P027 | 542-76-7 | Propanenitriie, 3-chloro- |
P069 | 75-86-5 | Propanenitrile, 2-hydroxy-2-methyl- |
P081 | 55-63-0 | 1,2,3-Propanetriol, trinitrate (R) |
P017 | 598-31-2 | 2-Propanone, 1-bromo- |
P102 | 107-19-7 | Propargyl alcohol |
P003 | 107-02-8 | 2-Propenal |
P005 | 107-18-6 | 2-Propen-l-ol |
P067 | 75-55-8 | 1,2-Propylenimine |
P102 | 107-19-7 | 2-Propyn-l-ol |
P008 | 504-24-5 | 4-Pyridinamine |
P075 | 54-11-5* | Pyridine, 3-(I-methyl-2-pyrrolidinyl)-, (S)-, & salts |
P114 | 12039-52-0 | Selenious acid, dithallium(l+) salt |
P103 | 630-10-4 | Selenourea |
P104 | 506-64-9 | Silver cyanide |
P104 | 506-64-9 | Silver cyanide AG(CN) |
P105 | 26628-22-8 | Sodium azide |
P106 | 143-33-9 | Sodium cyanide |
P106 | 143-33-9 | Sodium cyanide NA(CN) |
P108 | 57-24-9* | Strychnidin-10-one, & salts |
P018 | 357-57-3 | Strychnidin-10-one, 2,3-dimethoxy- |
P108 | 57-24-9* | Strychnine, & salts |
P115 | 7446-18-6 | Sulfuric acid, dithallium(l+) salt |
P109 | 3689-24-5 | Tetraethyldithiopyrophosphate |
P110 | 78-00-2 | Tetraethyl lead |
P111 | 107-49-3 | Tetraethyl pyrophosphate |
P112 | 509-14-8 | Tetranitromethane (R) |
P062 | 757-58-4 | Tetraphosphoric acid, hexaethyl ester |
P113 | 1314-32-5 | Thallic oxide |
P113 | 1314-32-5 | T'hallium oxide Tl2 O3 |
P114 | 12039-52-0 | Thallium(I) selenite |
P115 | 7446-18-6 | T'hallium(l) sulfate |
P109 | 3689-24-5 | Thiodiphosphoric acid, tetraethyl ester |
P045 | 39196-18-4 | Thiofanox |
P049 | 541-53-7 | Thioimidodicarbonic diamide [(H2N)C(S)]2NH |
P014 | 108-98-5 | Thiophenol |
P116 | 79-19-6 | Thiosemicarbazide |
P026 | 5344-82-1 | Thiourea, (2-chlorophenyl)- |
P072 | 86-88-4 | Thiourea, 1-naphthalenyl- |
P093 | 103-85-5 | Thiourea, phenyl- |
P123 | 8001-35-2 | Toxaphene |
P118 | 75-70-7 | Trichloromethanethiol |
P119 | 7803-55-6 | Vanadic acid, ammonium salt |
P120 | 1314-62-1 | Vanadium oxide VO, |
P120 | 1314-62-1 | Vanadium pentoxide |
P084 | 4549-40-0 | Vinylan-Line, N-methyl-N-nitroso- |
001 | 81-81-2* | Warfarin, & salts, when present at concentrations greater than 0.3% |
P121 | 557-21-1 | Zinc cyanide |
P121 | 557-21-1 | Zinc cyanide Zn(CN), |
P122 | 1314-84-7 | Zinc phosphideZn3 P2 (R,T) when present at concentrations greater than 10% |