Chemical identity and waste assessment

Chemical waste disposal library

A source-linked index of chemical identities, with guidance on the information needed to classify and route chemical waste.

Technical informationSources and further reading

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4,476 reference records · 8 detailed guides

This index brings together chemical identities from the ILO / WHO International Chemical Safety Cards and the HSE GB mandatory classification and labelling list. Use the names, identifiers and available formulae to compare a product label, safety data sheet or waste inventory with the source record. Separate source entries may describe different forms or concentrations of the same substance. A match confirms only the source identity; it does not establish the composition of the waste, collection availability or a suitable treatment route. HSE identity information contains Crown copyright material reproduced under the Open Government Licence v3.0.

The detailed guides explain properties and waste-assessment points for particular chemicals. A chemical name or CAS number does not, on its own, establish a List of Waste code, packaging requirement, transport classification or receiving-facility acceptance.

Using chemical identity in a waste assessment

Identity is one part of the waste description. Concentration, process history, contamination and container condition can change the assessment even when the original product is known.

  • Identity: product name, CAS or EC number and the supplier safety data sheet.
  • Waste status: unused stock, spent process material, mixture or contaminated packaging.
  • Quantity and condition: amount, concentration, container sizes and container condition.
  • Process history: how the waste arose, including known additions, contaminants or any available analysis.
Source references and waste guidance

These sources cover chemical identity, safety data sheets and waste classification. Each has its own scope; none of them confirms that a particular waste load will be accepted by a receiving facility.

Chemical waste guides

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1,699 matching records · Clear search

Chemical reference

CAPTAN

ICSC 0120 · CAS 133-06-2

Formula: C9H8Cl3NO2S

1,2,3,6-Tetrahydro-N-(trichloromethylthio)phthalimide; 3a,4,7,7a-Tetrahydro-2-((trichloromethyl)thio)-1H-isoindole-1,3(2H)-dione

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBADOX

ICSC 1510 · CAS 6804-07-5

Formula: C11H10N4O4

2-Formylquinoxaline-1,4-dioxide carbomethoxyhydrazone; 2-(Methoxycarbonylhydrazonomethyl)quinoxaline 1,4-dioxide; Methyl 3-(quinoxalin-2-ylmethylene)carbazate 1,4-dioxide

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBARYL

ICSC 0121 · CAS 63-25-2

Formula: C12H11NO2

1-Naphthalenol methylcarbamate; 1-Naphthyl methylcarbamate; Methyl carbamic acid 1-naphthyl ester; 1-Naphthalenyl methylcarbamate

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBENDAZIM

ICSC 1277 · CAS 10605-21-7

Formula: C9H9N3O2

Methyl benzimidazole-2-ylcarbamate; Methyl (1H-benzimidazol-2-yl)carbamate; Carbendazol; 1H-Benzimidazol-2-ylcarbamic acid methyl ester

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBOFURAN

ICSC 0122 · CAS 1563-66-2

Formula: C12H15NO3

2,3-Dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate; 2,2-Dimethyl-2,3-dihydro-7-benzofuranyl-N-methylcarbamate; 2,3-Dihydro-2,2-dimethylbenzofuran-7-yl methylcarbamate

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBON

ICSC 0702 · CAS 7440-44-0

Formula: CAtomicmass:12

Reference entry from an ILO / WHO International Chemical Safety Card. The card defines the chemical identity and the scope of its safety information. Check the supplier safety data sheet for the actual product or formulation.

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBON BLACK

ICSC 0471 · CAS 1333-86-4

Formula: CAtomicmass:12

Furnace black; Acetylene black; Carbon soot

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBON DIOXIDE

ICSC 0021 · CAS 124-38-9

Formula: CO2

Carbonic acid gas; Carbonic anhydride

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBON DISULFIDE

ICSC 0022 · CAS 75-15-0

Formula: CS2

Carbon bisulfide; Carbon sulfide; Carbon disulphide

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBON MONOXIDE

ICSC 0023 · CAS 630-08-0

Formula: CO

Carbonic oxide; Carbon oxide

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBON TETRABROMIDE

ICSC 0474 · CAS 558-13-4

Formula: CBr4

Tetrabromomethane

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBON TETRACHLORIDE

ICSC 0024 · CAS 56-23-5

Formula: CCl4

Carbon chloride; Tetra; Tetrachloromethane; Tetrachlorocarbon

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBONYL FLUORIDE

ICSC 0633 · CAS 353-50-4

Formula: COF2

Carbon oxyfluoride; Carbon difluoride oxide; Difluoroformaldehyde; Fluorophosgene

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CARBOPHENOTHION

ICSC 0410 · CAS 786-19-6

Formula: C11H16ClO2PS3/(CH3CH2)2P(S)SCH2SC6H4Cl

S-4-Chlorophenylthiomethyl O,O-diethyl phosphorodithioate; Phosphorodithioic acid, S-(((4-chlorophenyl)thio)methyl) O,O-diethyl ester

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CASTOR OIL

ICSC 1452 · CAS 8001-79-4

Ricinus oil

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CATECHOL

ICSC 0411 · CAS 120-80-9

Formula: C6H6O2

Pyrocatechol; 1,2-Benzenediol; 1,2-Dihydroxybenzene

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CERAMIC FIBRES (ALUMINOSILICATE)

ICSC 0123 · CAS 142844-00-6

Refractory ceramic fibres; RCF; Ceramic fibers; Refractory ceramic fibers

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CHLORAL HYDRATE

ICSC 0234 · CAS 302-17-0

Formula: C2H3Cl3O2/Cl3CCH(OH)2

Trichloroacetaldehyde monohydrate; 2,2,2-Trichloro-1,1-ethanediol

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CHLORAMINE-T

ICSC 0413 · CAS 127-65-1

Formula: C7H7ClNNaO2S

Sodium N-chloro-p-toluenesulfonamide; Sodium N-chloro-4-toluenesulfonamide; Sodium N-chloro 4-methylbenzenesulfonamide; Tosyl chloramide sodium

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CHLORANIL

ICSC 0780 · CAS 118-75-2

Formula: C6Cl4O2

2,3,5,6-Tetrachloro-p-benzoquinone; 2,3,5,6-Tetrachloro-2,5-cyclohexadiene-1,4-dione; Tetrachloro-p-benzoquinone; Tetrachloro-p-quinone

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CHLORDANE (TECHNICAL PRODUCT)

ICSC 0740 · CAS 57-74-9

Formula: C10H6Cl8

1,2,4,5,6,7,8,8-Octachloro-2,3,3a,4,7,7a-hexahydro-4,7-methanoindene; 1,2,4,5,6,7,8,8-Octachloro-2,3,3a,4,7,7a-hexahydro-4,7-methano-1H-indene

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CHLORDECONE

ICSC 1432 · CAS 143-50-0

Formula: C10Cl10O

1,1a,3,3a,4,5,5,5a,5b,6-Decachloro-octahydro-1,3,4-metheno-2H-cyclobuta(cd)pentalen-2-one; Kepone; Decachloroketone

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CHLORDIMEFORM

ICSC 0124 · CAS 6164-98-3

Formula: C10H13ClN2

Chlorphenamidine; N'-(4-Chloro-o-tolyl)-N,N-dimethylformamidine; N'-(4-Chloro-2-methylphenyl)-N,N-dimethylmethanimidamide

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Chemical reference

CHLORDIMEFORM HYDROCHLORIDE

ICSC 0125 · CAS 19750-95-9

Formula: C10H13ClN2:HCl

N'-(4-Chloro-o-tolyl)-N,N-dimethylformamidine hydrochloride; N'-(4-Chloro-2-methylphenyl)-N,N-dimethylmethanimidamide hydrochloride

ILO / WHO chemical safety card

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts
  • Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
  • Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

ILO / WHO chemical safety card

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Published by Chemical Waste Disposal. Sources checked 12 September 2026. Editorial policy.

If you spot an error in this library, please contact us so we can check the entry against its source.

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The appropriate route for chemical waste depends on the material, concentration, condition, quantity and any contamination. The reference information in this library helps with identification, but it does not confirm that a particular waste will be accepted.

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