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

IMIDACLOPRID

ICSC 1501 · CAS 138261-41-3

Formula: C9H10ClN5O2

1-(6-Chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine; 1-((6-Chloro-3-pyridinyl)methyl)-N-nitro-2-imidazolidinimine; 1-(6-Chloro-3-pyridinylmethyl)-N-nitroimidazolidin-2-ylideneamine; 1H-Imidazol-2-amine, 1-((6-chloro-3-pyridinyl)methyl)-4,5-dihydro-N-nitro

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

IMIDAZOLE

ICSC 1721 · CAS 288-32-4

Formula: C3H4N2

1,3-Diaza-2,4-cyclopentadiene; Glyoxaline; 1,3-Diazole; Miazole

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

INDENO(1,2,3-cd)PYRENE

ICSC 0730 · CAS 193-39-5

Formula: C22H12

o-Phenylenepyrene; 2,3-Phenylenepyrene

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

INDIUM

ICSC 1293 · CAS 7440-74-6

Formula: InAtomicmass:114.82

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

INDIUM TRICHLORIDE

ICSC 1377 · CAS 10025-82-8

Formula: InCl3

Indium chloride

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

IODINE

ICSC 0167 · CAS 7553-56-2

Formula: I2

Jod; Iode; Iodio; Yodo

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

IODINE CYANIDE

ICSC 0662 · CAS 506-78-5

Formula: CNI

Cyanogen iodide

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

IOXYNIL

ICSC 0900 · CAS 1689-83-4

Formula: C7H3I2NO

3,5-Diiodo-4-hydroxybenzonitrile; 4-Hydroxy-3,5-diiodobenzonitrile; 4-Cyano-2,6-diiodophenol

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

IRON (III)-o-ARSENITE, PENTAHYDRATE

ICSC 1241 · CAS 63989-69-5

Formula: As2Fe2O6.Fe2O3.5H2O

Ferric arsenite

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

IRON DICHLORIDE

ICSC 1715 · CAS 7758-94-3

Formula: FeCl2

Iron(II) chloride; Ferrous chloride

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

IRON PENTACARBONYL

ICSC 0168 · CAS 13463-40-6

Formula: C5FeO5/Fe(CO)5

Iron carbonyl

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

iso-PHTHALONITRILE

ICSC 1583 · CAS 626-17-5

Formula: C8H4N2

1,3-Benzenedicarbonitrile; Isophthalodinitrile; m-Dicyanobenzene

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

ISOAMYL ACETATE

ICSC 0356 · CAS 123-92-2

Formula: C7H14O2/CH3COO(CH2)2CH(CH3)2

Isopentyl acetate; 3-Methylbutyl acetate

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

ISOAMYL ALCOHOL

ICSC 0798 · CAS 123-51-3

Formula: C5H12O/(CH3)2CHCH2CH2OH

3-Methyl-1-butanol; Isopentyl alcohol; Isobutylcarbinol

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

ISOAMYL NITRITE

ICSC 1012 · CAS 110-46-3

Formula: C5H11N02

Amyl nitrite; Nitrous acid, 3-methyl butyl ester; 3-Methylbutanol nitrite; Isopentyl alcohol nitrite

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

ISOBUTANE

ICSC 0901 · CAS 75-28-5

Formula: C4H10/(CH3)2CHCH3

2-Methylpropane; 1,1-Dimethylethane; Trimethylmethane

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

ISOBUTANOL

ICSC 0113 · CAS 78-83-1

Formula: C4H10O/(CH3)2CHCH2OH

2-Methyl-1-propanol; Isopropyl carbinol; Isobutyl alcohol

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

ISOBUTANOLAMINE

ICSC 0285 · CAS 124-68-5

Formula: C4H11NO/(CH3)2C(NH2)CH2OH

2-Amino-2-methyl-1-propanol; 2-Amino-2-methylpropanol; 2-Aminoisobutanol; 2-Aminodimethylethanol

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

ISOBUTENE

ICSC 1027 · CAS 115-11-7

Formula: C4H8/CH2=C(CH3)2

Isobutylene; 2-Methylpropene; 1,1-Dimethylethylene

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

ISOBUTYL ACETATE

ICSC 0494 · CAS 110-19-0

Formula: C6H12O2/CH3COOCH2CH(CH3)2

2-Methylpropyl acetate; 2-Methyl-1-propyl acetate; Acetic acid, 2-methylpropyl ester; beta-Methylpropyl ethanoate

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

ISOBUTYL CHLORIDE

ICSC 0286 · CAS 513-36-0

Formula: C4H9Cl/(CH3)2CHCH2Cl

1-Chloro-2-methylpropane

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

ISOBUTYL CHLOROFORMATE

ICSC 1594 · CAS 543-27-1

Formula: C5H9ClO2/(CH3)2CHCH2OCOCl

Isobutyl chlorocarbonate; 2-Methylpropyl chloroformate; Formic acid, chloro-, isobutyl ester; Carbonochloridic acid, 2-methylpropyl 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

ISOBUTYL NITRITE

ICSC 1651 · CAS 542-56-3

Formula: C4H9NO2/(CH3)2CHCH2NO2

Nitrous acid, 2-methylpropyl ester; Nitrous acid, isobutyl 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

ISOBUTYLAMINE

ICSC 1253 · CAS 78-81-9

Formula: C4H11N/(CH3)2CHCH2NH2

2-Methylpropylamine; 2-Methyl-1-propanamine; 1-Amino-2-methylpropane

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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