Acutely Toxic ‘P-listed’ Hazardous Chemical Waste Guidance

Boston University Environmental Health and Safety
Boston Medical Center

P-Listed Hazardous Wastes

The Environmental Protection Agency (EPA) has identified a number of chemicals on the EPA “P-list” that present an especially acute hazard when disposed of as hazardous waste. Because of their acute hazards, there are more stringent requirements when disposing of these wastes:

Container size: When collecting p-listed chemicals as waste, the volume of the hazardous waste container must not exceed one quart (approximately one liter).

Empty containers: Empty containers that held p-listed chemicals must also be disposed of as hazardous waste. They are not allowed to be washed or re-used.

Contaminated materials: Disposable materials that become contaminated with p-listed chemicals (e.g. gloves, weighing boats, etc.) must also be disposed of as hazardous waste. Non-disposable materials must be “triple-rinsed”, or rinsed three times to remove the contamination. This rinsate must be collected as hazardous waste. Materials contaminated with p-listed chemicals may not be washed or re-used until they have been triple-rinsed.

Remember:

• Label the waste as hazardous waste. Just like all other hazardous wastes, p-listed wastes must be labeled with the words “hazardous waste”, the complete chemical name, and the associated hazard characteristics (e.g., ignitable, corrosive, toxic, or reactive).
• Use disposable materials whenever possible. Triple-rising non-disposable material generates a lot of waste, which can be difficult to dispose of safely. Consider using disposable containers to prevent excess waste generation.
• Collect contaminated materials in a plastic bag. Gloves, weigh boats, paper towel, etc. that is contaminated with p-listed wastes can be collected in a closeable bag or other container labeled with an appropriate hazardous waste label. Be sure the volume of the container does not exceed one quart!

If you have questions concerning the use of p-listed chemicals at Boston University, contact your laboratory’s assigned Research Safety Specialist or Environmental Health & Safety.

Environmental Health & Safety
Charles River Campus: 353-4094
Medical Campus: 638-8830
Web: http://www.bu.edu/EHS

Complete list of “p-listed” chemicals

Also available on the web here.

• Acetaldehyde, chloro
• Acetamide, N-(aminothioxomethyl)-
• Acetamide, 2-fluoro
• Acetic acid, fluoro-, sodium salt
• 1-Acetyl-2-thiourea
• Acrolein
• Aldicarb
• Aldicarb sulfone.
• Aldrin
• Allyl alcohol
• Aluminum phosphide (R,T)
• 5-(Aminomethyl)-3-isoxazolol
• 4-Aminopyridine
• Ammonium picrate (R)
• Ammonium vanadate
• Argentate(1-), bis(cyano-C)-, potassium
• Arsenic acid H3AsO4
• Arsenic oxide As2O3
• Arsenic oxide As2O5
• Arsenic pentoxide
• Arsenic trioxide
• Arsine, diethyl-
• Arsonous dichloride, phenyl-
• Aziridine
• Aziridine, 2-methyl-
• Barium cyanide
• Benzenamine, 4-chloro-
• Benzenamine, 4-nitro-
• Benzene, (chloromethyl)-
• 1,2-Benzenediol, 4-[1-hydroxy-2- (methylamino)ethyl]-, (R)-
• Benzeneethanamine, alpha,alpha-dimethyl-
• Benzenethiol
• 7-Benzofuranol, 2,3-dihydro-2,2- dimethyl-, methylcarbamate.
• Benzoic acid, 2-hydroxy-, compd. with (3aS-cis)-1,2,3,3a,8,8a-hexahydro- 1,3a,8-trimethylpyrrolo[2,3-b]indol-5-yl methylcarbamate ester (1:1).
• 2H-1-Benzopyran-2-one, 4-hydroxy-3- (3-oxo-1-phenylbutyl)-, & salts, when present at concentrations greater than 0.3%
• Benzyl chloride
• Beryllium powder
• Bromoacetone
• Brucine
• 2-Butanone, 3,3-dimethyl-1- (methylthio)-,
• O-[(methylamino)carbonyl] oxime Calcium cyanide
• Calcium cyanide Ca(CN)2Carbamic acid, [(dibutylamino)- thio]methyl-, 2,3- dihydro-2,2-dimethyl- 7-benzofuranyl ester.
• Carbamic acid, dimethyl-, 1-[(dimethylamino)carbonyl]- 5-methyl-1H- pyrazol- 3-yl ester.
• Carbamic acid, dimethyl-, 3-methyl-1- (1-methylethyl)-1H- pyrazol-5-yl ester.
• Carbamic acid, methyl-, 3-methylphenyl ester.
• Carbofuran.
• Carbon disulfide
• Carbonic dichloride
• Carbosulfan.
• Chloroacetaldehyde
• p-Chloroaniline
• 1-(o-Chlorophenyl)thiourea
• 3-Chloropropionitrile
• Copper cyanide
• Copper cyanide Cu(CN)
• m-Cumenyl methylcarbamate.
• Cyanides (soluble cyanide salts), not otherwise specified
• Cyanogen
• Cyanogen chloride
• Cyanogen chloride (CN)Cl
• 2-Cyclohexyl-4,6-dinitrophenol
• Dichloromethyl ether
• Dichlorophenylarsine
• Dieldrin
• Diethylarsine
• Diethyl-p-nitrophenyl phosphate
• O,O-Diethyl O-pyrazinyl phosphorothioate
• Diisopropylfluorophosphate (DFP)
• 1,4,5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexa- chloro- 1,4,4a,5,8,8a,-hexahydro-, (1alpha,4alpha,4abeta,5alpha,8alpha,8 abeta)-
• 1,4,5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexa- chloro- 1,4,4a,5,8,8a-hexahydro-, (1alpha,4alpha,4abeta,5beta,8beta,8ab eta)-
• 2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-hexachloro- 1a,2,2a,3,6,6a,7,7a-octahydro-, (1aalpha,2beta,2aalpha,3beta,6beta,6a alpha,7beta, 7aalpha)-
• 2,7:3,6-Dimethanonaphth [2,3- b]oxirene, 3,4,5,6,9,9-hexachloro- 1a,2,2a,3,6,6a,7,7a-octahydro-, (1aalpha,2beta,2abeta,3alpha,6alpha,6 abeta,7beta, 7aalpha)-, & metabolites
• Dimethoate
• alpha,alpha-Dimethylphenethylamine
• Dimetilan.
• 4,6-Dinitro-o-cresol, & salts
• 2,4-Dinitrophenol
• Dinoseb
• Diphosphoramide, octamethyl-
• Diphosphoric acid, tetraethyl ester
• Disulfoton
• Dithiobiuret
• 1,3-Dithiolane-2-carboxaldehyde, 2,4- dimethyl-, O- [(methylamino)- carbonyl]oxime.
• Endosulfan
• Endothall
• Endrin
• Endrin, & metabolites
• Epinephrine
• Ethanedinitrile
• Ethanimidothioic acid, 2- (dimethylamino)-N-[[(methylamino) carbonyl]oxy]-2-oxo-, methyl ester.
• Ethanimidothioic acid, N-[[(methylamino)carbonyl]oxy]-, methyl ester
• Ethyl cyanide
• Ethyleneimine
• Famphur
• Fluorine
• Fluoroacetamide
• Fluoroacetic acid, sodium salt
• Formetanate hydrochloride.
• Formparanate.
• Fulminic acid, mercury(2+) salt (R,T)
• Heptachlor
• Hexaethyl tetraphosphate
• Hydrazinecarbothioamide
• Hydrazine, methyl-
• Hydrocyanic acid
• Hydrogen cyanide
• Hydrogen phosphide
• Isodrin
• Isolan.
• 3-Isopropylphenyl N-methylcarbamate.
• 3(2H)-Isoxazolone, 5-(aminomethyl)-
• Manganese, bis(dimethylcarbamodithioato-S,S′)-,
• Manganese dimethyldithiocarbamate.
• Mercury, (acetato-O)phenyl-
• Mercury fulminate (R,T)
• Methanamine, N-methyl-N-nitroso-
• Methane, isocyanato-
• Methane, oxybis[chloro-
• Methane, tetranitro- (R)
• Methanethiol, trichloro-
• Methanimidamide, N,N-dimethyl-N′-[3- [[(methylamino)-carbonyl]oxy]phenyl]-, monohydrochloride.
• Methanimidamide, N,N-dimethyl-N′-[2- methyl-4-[[(methylamino)carbonyl]oxy]phenyl]-
• 6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10- hexachloro-1,5,5a,6,9,9a-hexahydro-, 3-oxide
• 4,7-Methano-1H-indene, 1,4,5,6,7,8,8- heptachloro- 3a,4,7,7a-tetrahydro-
• Methiocarb.
• Methomyl
• Methyl hydrazine
• Methyl isocyanate
• 2-Methyllactonitrile
• Methyl parathion
• Metolcarb.
• Mexacarbate.
• alpha-Naphthylthiourea
• Nickel carbonyl
• Nickel carbonyl Ni(CO)₄, (T-4)-
• Nickel cyanide
• Nickel cyanide Ni(CN)₂
• Nicotine, & salts
• Nitric oxide
• p-Nitroaniline
• Nitrogen dioxide
• Nitrogen oxide NO
• Nitrogen oxide NO₂
• Nitroglycerine (R)
• N-Nitrosodimethylamine
• N-Nitrosomethylvinylamine
• Octamethylpyrophosphoramide
• Osmium oxide OsO4, (T-4)-
• Osmium tetroxide
• 7-Oxabicyclo[2.2.1]heptane-2,3- dicarboxylic acid
• Oxamyl.
• Parathion
• Phenol, 2-cyclohexyl-4,6-dinitro-
• Phenol, 2,4-dinitro-
• Phenol, 2-methyl-4,6-dinitro-, & salts
• Phenol, 2-(1-methylpropyl)-4,6-dinitro-
• Phenol, 2,4,6-trinitro-, ammonium salt (R)
• Phenol, 4-(dimethylamino)-3,5- dimethyl-, methylcarbamate (ester).
• Phenol, (3,5-dimethyl-4-(methylthio)-, methylcarbamate
• Phenol, 3-(1-methylethyl)-, methyl carbamate.
• Phenol, 3-methyl-5-(1-methylethyl)-, methyl carbamate.
• Phenylmercury acetate
• Phenylthiourea
• Phorate
• Phosgene
• Phosphine
• Phosphoric acid, diethyl 4-nitrophenyl ester
• Phosphorodithioic acid, O,O-diethyl S-[2-(ethylthio)ethyl] ester
• Phosphorodithioic acid, O,O-diethyl S-[(ethylthio)methyl] ester
• Phosphorodithioic acid, O,O-dimethyl S-[2-(methylamino)-2-oxoethyl] ester
• Phosphorofluoridic acid, bis(1- methylethyl) ester
• Phosphorothioic acid, O,O-diethyl O-(4- nitrophenyl) ester
• Phosphorothioic acid, O,O-diethyl O-pyrazinyl ester
• Phosphorothioic acid, O-[4-[(dimethylamino)sulfonyl]phenyl] O,O-dimethyl ester
• Phosphorothioic acid, O,O,-dimethyl O- (4-nitrophenyl) ester
• Physostigmine.
• Physostigmine salicylate.
• Plumbane, tetraethyl-
• Potassium cyanide
• Potassium cyanide K(CN)
• Potassium silver cyanide
• Promecarb
• Propanal, 2-methyl-2-(methylthio)-, O-[(methylamino)carbonyl]oxime
• Propanal, 2-methyl-2-(methyl-sulfonyl)-, O-[(methylamino)carbonyl] oxime.
• Propanenitrile
• Propanenitrile, 3-chloro-
• Propanenitrile, 2-hydroxy-2-methyl-
• 1,2,3-Propanetriol, trinitrate (R)
• 2-Propanone, 1-bromo-
• Propargyl alcohol
• 2-Propenal
• 2-Propen-1-ol
• 1,2-Propylenimine
• 2-Propyn-1-ol
• 4-Pyridinamine
• Pyridine, 3-(1-methyl-2-pyrrolidinyl)-, (S)-, & salts
• Pyrrolo[2,3-b]indol-5-ol, 1,2,3,3a,8,8ahexahydro-1,3a,8-trimethyl-, methylcarbamate (ester), (3aS-cis)-.
• Selenious acid, dithallium(1+) salt
• Selenourea
• Silver cyanide
• Silver cyanide Ag(CN)
• Sodium azide
• Sodium cyanide
• Sodium cyanide Na(CN)
• Strychnidin-10-one, & salts
• Strychnidin-10-one, 2,3-dimethoxy-
• Strychnine, & salts
• Sulfuric acid, dithallium(1+) salt
• Tetraethyldithiopyrophosphate
• Tetraethyl lead
• Tetraethyl pyrophosphate
• Tetranitromethane (R)
• Tetraphosphoric acid, hexaethyl ester
• Thallic oxide
• Thallium oxide Tl₂O₃
• Thallium(I) selenite
• Thallium(I) sulfate
• Thiodiphosphoric acid, tetraethyl ester
• Thiofanox
• Thioimidodicarbonic diamide [(H₂N)C(S)]₂NH
• Thiophenol
• Thiosemicarbazide
• Thiourea, (2-chlorophenyl)-
• Thiourea, 1-naphthalenyl-
• Thiourea, phenyl-
• Tirpate.
• Toxaphene
• Trichloromethanethiol
• Vanadic acid, ammonium salt
• Vanadium oxide V₂O₅
• Vanadium pentoxide
• Vinylamine, N-methyl-N-nitroso-
• Warfarin, & salts, when present at concentrations greater than 0.3%
• Zinc, bis(dimethylcarbamodithioatoS,S′)-,
• Zinc cyanide
• Zinc cyanide Zn(CN)₂
• Zinc phosphide Zn3P2, when present at concentrations greater than 10% (R,T)
• Ziram.