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University of Pittsburgh EH&S Guideline Number: 04-019 Safety Manual Subject: Effective Date: 10/11/2017 DISPOSAL OF EMPTY Page 1 of 4 Review Date: 09/23/2019 CHEMICAL CONTAINERS

DISPOSAL OF EMPTY CHEMICAL CONTAINERS

Chemical containers which are not completely empty and still contain residual amounts of chemicals could potentially be classified as hazardous waste. Therefore, special considerations must be taken when disposing of containers. The following guidelines have been developed to ensure that empty chemical containers are disposed of properly.

1. Chemical containers must be completely emptied prior to disposal. Be sure that there is no residual material in the container.

2. If the original product container is in good condition, consider reusing the container to collect waste chemicals. The waste chemicals should be compatible with the container and the original contents of the container.

3. Consider the type of chemical that was in the container. If the chemical is identified on the list of Acutely Hazardous Wastes (see attachment), the empty container should NOT be rinsed and MUST be disposed of through the Chemical Waste Program.

4. If the chemical is NOT on the attached list of Acutely Hazardous Wastes, the container should be triple- rinsed with or in some cases, a capable of removing the original chemical. If the rinsing solvent is hazardous (e.g. , methylene chloride), the rinsate must be collected and disposed through the Chemical Waste Program.

5. Once the interior of the container has been triple-rinsed, the container should be air-dried.

6. When the container (glass, metal or plastic) is dry, deface the original label with a permanent marker. Write “EMPTY” on the label. If the container is glass and the chemical is not on the Acutely Hazardous Waste list, it should be disposed of in a broken glass receptacle. Any empty, glass container or item does not need to be broken to be placed in a broken glass receptacle. If the empty container is metal or plastic and the chemical is not on the Acutely Hazardous Waste list, it should be disposed of in the regular trash.

7. If you are unable to remove any residual amount of chemical in the container, the container must be disposed of through the Chemical Waste Program.

Acutely Hazardous Wastes

The following chemicals are considered to be acutely hazardous wastes, and empty containers formerly containing these chemicals must be disposed of through the Chemical Waste Program.

• Acetaldehyde, chloro- • 1-Acetyl-2-thiourea • Aluminum phosphide • Acetamide, N- • Acrolein • 5-(Aminomethyl)-3- (aminothioxomethyl)- • isoxazolol • Acetamide, 2-fluoro- • Aldicarb sulfone • 4-Aminopyridine • Acetic , fluoro-, • • Ammonium picrate sodium • Allyl alcohol • Ammonium vanadate University of Pittsburgh EH&S Guideline Number: 04-019 Safety Manual Subject: Effective Date: 10/11/2017 DISPOSAL OF EMPTY Page 2 of 4 Review Date: 09/23/2019 CHEMICAL CONTAINERS

• Argentate(1-), bis(cyano- • , • O,O-Diethyl O-pyrazinyl C)-, potassium [(dibutylamino)- phosphorothioate • Arsenic acid thio]methyl-2,3- • Diisopropylfluorophospha • Arsenic oxide dihydro-2,2- te • Arsenic pentoxide dimethyl-7- • 1,4,5,8- • Arsenic trioxide benzofuranyl ester Dimethanonaphthalene,1, • Arsine, diethyl- • Carbamic acid, 2,3,4,10,10-hexa-chloro- • Arsonous dichloride, dimethyl-, 1- 1,4,4a,5,8,8a,-hexahydro phenyl- [(dimethyl- (1alpha,4alpha,4abeta,5a • Aziridine amino)carbonyl]-5- lpha,8alpha,8abeta)- • Aziridine, 2-methyl- methyl-1H-pyrazol- • 1,4,5,8- • Barium 3-yl ester Dimethanonaphthalene, • Benzenamine, 4-chloro- • Carbamic acid, 1,2,3,4,10,10-hexa- • Benzenamine, 4-nitro- dimethyl-, 3-methyl- chloro-1,4,4a,5,8,8a- • , (chloromethyl)- 1-(1-methylethyl)- hexahydro-, • 1,2-Benzenediol, 4-[1- 1H-pyrazol-5-yl (1alpha,4alpha,4abeta,5b hydroxy-2- ester eta,8beta,8abeta)- (methylamino)ethyl]- • Carbamic acid, • 2,7:3,6- • Benzeneethanamine, methyl-, 3- Dimethanonaphth[2,3- alpha,alpha-dimethyl- methylphenyl ester b]oxirene,3,4,5,6,9,9- • Benzenethiol • hexachloro- • 7-Benzofuranol, 2,3- • Carbon disulfide 1a,2,2a,3,6,6a,7,7a- dihydro-2,2-dimethyl-, • Carbonic dichloride octahydro-, methylcarbamate • Chloroacetaldehyde (1aalpha,2beta,2aalpha,3 • , 2-hydroxy-, • p-Chloroaniline beta,6beta,6aalpha,7beta compnd. with (3aS-cis)- • 1-(o- , 7aalpha)- 1,2,3,3a,8,8a-hexahydro- Chlorophenyl)thiour • 2,7:3,6-Dimethanonaphth 1,3a,8-trimethylpyrrolo ea [2,3-b]oxirene,3,4,5,6,9,9- [2,3-b]indo 1-5yl methyl • 3-Chloropropionitrile hexachloro- ester (1:1) • Copper cyanide 1a,2,2a,3,6,6a,7,7a- • 2H-1-Benzopyran-2-one, • M-Cumenyl octahydro 4-hydroxy-3-(3-oxo-1- methylcarbamate (1aalpha,2beta,2abeta,3a phenylbutyl)-, & , • (soluble lpha,6alpha,6abeta,7beta when present at cyanide salts), not ,7aalpha)-, & metabolites concentrations greater otherwise specified • than 0.3% • Cyanogen • alpha,alpha- • Benzyl chloride • Cyanogen chloride Dimethylphenethylamine • Beryllium • 2-Cyclohexyl-4,6- • • Bromoacetone dinitrophenol • 4,6-Dinitro-o-cresol, & • Brucine • Dichloromethyl ether salts • 2-Butanone, 3,3- • Dichlorophenylarsin • 2,4-Dinitrophenol dimethyl-1-(methylthio)-, e • Dinoseb O-[methylamino)carbonyl] • • Diphosphoramide, • Diethylarsine octamethyl- • Calcium cyanide • Diethyl-p-nitrophenyl • Diphosphoric acid, phosphate tetraethyl ester University of Pittsburgh EH&S Guideline Number: 04-019 Safety Manual Subject: Effective Date: 10/11/2017 DISPOSAL OF EMPTY Page 3 of 4 Review Date: 09/23/2019 CHEMICAL CONTAINERS

• • Manganese • Mexacarbate • Dithiobiuret dimethyldithiocarba • alpha-Naphthylthiourea • 1,3-Dithiolane-2- mate • Nickel carbonyl carboxaldehyde, 2, 4- • Mercury, (acetato- • Nickel cyanide dimethyl-O- O)phenyl- • , & salts [(methylamino)-carbonyl] • Mercury fulminate • Nitric oxide oxime • Methanamine, N- • p-Nitroaniline • methyl-N-nitroso- • Nitrogen dioxide • Endothall • Methane, • Nitrogen oxide • isocyanato- • Nitroglycerine (R) • Endrin, & metabolites • Methane, • N-Nitrosodimethylamine • Epinephrine oxybis[chloro- • N- • Ethanedinitrile • Methane, tetranitro- Nitrosomethylvinylamine • Ethanimidothioic,2- • Methanethiol, • Octamethylpyrophosphor (dimethylamino)-N- trichloro- amide [[(methylamino) • Methanimidamide, • Osmium oxide, (T-4)- carbonyl]oxy]-2-oxo, N,N-dimethyl-N-[-3- • Osmium tetroxide methyl ester [[(methylamino)- • 7- • Ethanimidothioic acid, N- carbonyl]oxy]phenyl] Oxabicyclo[2.2.1]heptane [[(methylamino)carbonyl] -, -2,3-dicarboxylic acid oxy]-, methyl ester monohydrochloride • • Ethyl cyanide • Methanimidamide, • • Ethyleneimine N,N-dimethyl-N’-2- • Phenol, 2-cyclohexyl-4,6- • Famphur methyl-4- dinitro- • Fluorine [[[(methylamino)- • Phenol, 4- • Fluoroacetamide carbonyl]oxy]phenyl] (dimethylamino)-3,5- • Fluoroacetic acid, sodium -, dimethyl- salt monohydrochloride methylcarbamate (ester) • Formentanate • 6,9-Methano-2,4,3- • Phenol, (3,5-dimethyl-4- hydrochloride benzodioxathiepin, (methylthio)-, • 6,7,8,9,10,10- methylcarbamate • Fulminic acid, hexachloro- • Phenol, 2,4-dinitro- mercury(2+) salt 1,5,5a,6,9,9a- • Phenol, 2-methyl-4,6- • hexahydro-, 3-oxide dinitro-, & salts • • 4,7-Methano-1H- • Phenol, 3-(1- • Hydrazinecarbothioamide indene, methylethyl)-, methyl • Hydrazine, methyl- 1,4,5,6,7,8,8- carbamate • Hydrocyanic acid heptachloro- • Phenol, 3-methyl-5-(1- • Hydrogen cyanide 3a,4,7,7atetrahydro- methylethyl)-methyl • Hydrogen phosphide • carbamate • Isodrin • • Phenol, 2-(1- • 3(2H)-Isoxazolone, 5- • Methyl hydrazine methylpropyl)-4,6-dinitro- (aminomethyl)- • • Phenol, 2,4,6-trinitro-, • Manganese, • 2-Methyllactonitrile ammonium salt bis(dimethylcarbamodithi • Methyl parathion • Phenylmercury acetate oato-S,S’)- • • Phenylthiourea University of Pittsburgh EH&S Guideline Number: 04-019 Safety Manual Subject: Effective Date: 10/11/2017 DISPOSAL OF EMPTY Page 4 of 4 Review Date: 09/23/2019 CHEMICAL CONTAINERS

• • Propanal, 2-methyl- • Tetraethyldithiopyrophos • Phosgene 2-(methylthio)-, O- phate • [(methylamino)carbo • Tetraethyl lead • Phosphoric acid, diethyl nyl]oxime • Tetraethyl 4-nitrophenyl ester • Propanenitrile • Tetranitromethane • Phosphorodithioic acid, • Propanenitrile, 3- • Tetraphosphoric acid, O,O-diethyl S-[2- chloro- hexaethyl ester (ethylthio)ethyl] ester • Propanenitrile, 2- • Thallic oxide • Phosphorodithioic acid, hydroxy-2-methyl- • Thallium oxide O,O-diethyl S- • 1,2,3-Propanetriol, • Thallium(I) selenite [(ethylthio)methyl] ester trinitrate • Thallium(I) sulfate • Phosphorodithioic acid, • 2-Propanone, 1- • Thiodiphosphoric acid, O,O-dimethyl S-[2- bromo- tetraethyl ester (methylamino) -2- • Propargyl alcohol • oxoethyl] ester • 2-Propenal • Thioimidodicarbonic • Phosphorofluoridic acid, • 2-Propen-1-ol diamide bis(1-methylethyl) ester • 1,2-Propylenimine • Thiophenol • Phosphorothioic acid, • 2-Propyn-1-ol • Thiosemicarbazide O,O-diethyl O-(4- • 4-Pyridinamine • Thiourea, (2- nitrophenyl) ester • Pyridine, 3-(1- chlorophenyl)- • Phosphorothioic acid, methyl-2- • Thiourea, 1-naphthalenyl- O,O-diethyl O-pyrazinyl pyrrolidinyl)-, (S)-, & • Thiourea, phenyl- ester salts • Tirpate • Phosphorothioic acid, O- • Pyrrolo[2,3-b]indol- • [4- 5-old,1,2,3a,8,8a- • Trichloromethanethiol [(dimethylamino)sulfonyl] hexahydro-1,3a,8- • Vanadic acid, ammonium phenyl] O,O-dimethyl trimethyl-, salt ester methylcarbamate • Vanadium oxide • Phosphorothioic acid, (ester), (3aS-cis)- • Vanadium pentoxide O,O,-dimethyl O-(4- • Selenious acid, • Vinylamine, N-methyl-N- nitrophenyl) ester dithallium(1+) salt nitroso- • • Selenourea • Warfarin, & salts, when • Physostigmine, salicylate • Silver cyanide present at concentrations • Plumbane, tetraethyl- • Sodium azide greater than 0.3% • Potassium cyanide • Sodium cyanide • Zinc • Potassium silver cyanide • Strychnidin-10-one, bis(dimethylcarbamodithi • & salts oato-S,S’) • Propanal, 2-methyl-w- • Strychnidin-10-one, • Zinc cyanide (methyl-sulfonyl)-O- 2,3-dimethoxy- • Zinc phosphide, when [(methylamino)carbonyl]o • Strychnine, & salts present at concentrations xime • Sulfuric acid, greater than 10% dithallium(1+) salt • Ziram