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.
CAS 9001-98-3 · GB MCL 647-009-00-1 · EC 232-645-0
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum,) solvent-refined; Baseoil — unspecified; [A complex combination by hydrocarbons obtained as the solvent insoluble fraction from solvent refining of a residuum using a polar organic solvent such as phenol or furfural. It consists of hydrocarbons having carbon numbers predominantly higher than C25 and boiling above approximately 400 oC (752 oF).]
CAS 64742-01-4 · GB MCL 649-459-00-4 · EC 265-101-6
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum), carbon-treated solvent-dewaxed; Baseoil — unspecified; [A complex combination of hydrocarbons obtained by the treatment of solventdewaxed petroleum residual oils with activated charcoal for the removal of trace polar constituents and impurities.]
CAS 100684-37-5 · GB MCL 649-525-00-2 · EC 309-710-8
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
CAS 91770-57-9 · GB MCL 649-492-00-4 · EC 294-843-3
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum), clay-treated solvent- dewaxed; Baseoil — unspecified; [A complex combination of hydrocarbons obtained by treatment of solvent-dewaxed petroleum residual oils with bleaching earth for the removal of trace polar constituents and impurities.]
CAS 100684-38-6 · GB MCL 649-526-00-8 · EC 309-711-3
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum), clay-treated; Baseoil — unspecified; [A complex combination of hydrocarbons obtained by treatment of a residual oil with a natural or modified clay in either a contacting or percolation process to remove the trace amounts of polar compounds and impurities present. It consists of hydrocarbons having carbon numbers predominantly higher than C25 and boiling above approximately 400 oC (752 oF).]
CAS 64742-41-2 · GB MCL 649-462-00-0 · EC 265-143-5
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum), deisobutanizer tower; Low boiling point naphtha — unspecified; [A complex residuum from the atmospheric distillation of the butane-butylene stream. It consists of aliphatic hydrocarbons having carbon numbers predominantly in the range of C4 through C6.]
CAS 68478-16-0 · GB MCL 649-365-00-3 · EC 270-795-9
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum), hydrocracked acid-treated solvent-dewaxed; Baseoil — unspecified; [A complex combination of hydrocarbons produced by solvent removal of paraffins from the residue of the distillation of acidtreated, hydrocracked heavy paraffins and boiling approximately above 380 oC (716 oF).]
CAS 92061-86-4 · GB MCL 649-499-00-2 · EC 295-499-7
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
CAS 90669-74-2 · GB MCL 649-491-00-9 · EC 292-656-1
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum), hydrotreated; Baseoil — unspecified; [A complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst. It consists of hydrocarbons having carbon numbers predominantly greater than C25 and boiling above approximately 400 oC (752 oF).]
CAS 64742-57-0 · GB MCL 649-470-00-4 · EC 265-160-8
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum), solvent deasphalted; Baseoil — unspecified; [A complex combination of hydrocarbons obtained as the solvent soluble fraction from C3-C4 solvent deasphalting of a residuum. It consists of hydrocarbons having carbon numbers predominantly higher than C25 and boiling above approximately 400 oC (752 oF).]
CAS 64741-95-3 · GB MCL 649-456-00-8 · EC 265-096-0
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum), solvent-dewaxed; Baseoil — unspecified; [A complex combination of hydrocarbons obtained by removal of long, branched chain hydrocarbons from a residual oil by solvent crystallization. It consists of hydrocarbons having carbon numbers predominantly greater than C25 and boiling above approximately 400 oC (752 oF).]
CAS 64742-62-7 · GB MCL 649-471-00-X · EC 265-166-0
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residual oils (petroleum); Heavy Fuel oil; [A complex combination of hydrocarbons, sulfur compounds and metal-containing organic compounds obtained as the residue from refinery fractionation cracking processes. It produces a finished oil with a viscosity above 2cSt. at 100 oC.]
CAS 93821-66-0 · GB MCL 649-045-00-3 · EC 298-754-0
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (coal tar), anthracene oil distn.; Anthracene Oil Fraction; [The residue from the fraction distillation of crude anthracene boiling in the approximate range of 340 °C to 400 °C (644 °F to 752 °F). It consists predominantly of tri- and polynuclear aromatic and heterocyclic hydrocarbons.]
CAS 92061-92-2 · GB MCL 648-105-00-6 · EC 295-505-8
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (coal tar), creosote oil distn.; Wash Oil Redistillate; [The residue from the fractional distillation of wash oil boiling in the approximate range of 270 °C to 330 °C (518 °F to 626 °F). It consists predominantly of dinuclear aromatic and heterocyclic hydrocarbons.]
CAS 92061-93-3 · GB MCL 648-080-00-1 · EC 295-506-3
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (coal tar), pitch distn.; Pitch Redistillate; [Residue from the fractional distillation of pitch distillate boiling in the range of approximately 400 oC to 470 oC (752 oF to 846 oF). Composed primarily of polynuclear aromatic hydrocarbons, and heterocyclic compounds.]
CAS 92061-94-4 · GB MCL 648-058-00-1 · EC 295-507-9
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (coal), liq. solvent extn.; [A cohesive powder composed of coal mineral matter and undissolved coal remaining after extraction of coal by a liquid solvent.]
CAS 94114-46-2 · GB MCL 648-142-00-8 · EC 302-681-2
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (petroleum), alkylation splitter, C4-rich; Petroleum gas; [A complex residuum from the distillation of streams various refinery operations. It consists of hydrocarbons having carbon numbers in the range of C4 through C5, predominantly butane and boiling in the range of approximately – 11.7 °C to 27.8 °C (11 °F to 82 °F).]
CAS 68513-66-6 · GB MCL 649-087-00-2 · EC 271-010-2
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (petroleum), atm. tower; Heavy Fuel oil; [A complex residuum from the atmospheric distillation of crude oil. It consists of hydrocarbons having carbon numbers predominantly greater than C20 and boiling above approximately 350 oC (662 oF). This stream is likely to contain 5 wt. % or more of 4- to 6-membered condensed ring aromatic hydrocarbons.]
CAS 64741-45-3 · GB MCL 649-008-00-1 · EC 265-045-2
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (petroleum), atmospheric; Heavy Fuel oil; [A complex residuum from atmospheric distillation of crude oil. It consists of hydrocarbons having carbon numbers predominantly greater than C11 and boiling above approximately 200 oC (392 oF). This stream is likely to contain 5 wt. % or more of 4-to 6-membered condensed ring aromatic hydrocarbons.]
CAS 68333-22-2 · GB MCL 649-019-00-1 · EC 269-777-3
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (petroleum), butane splitter bottoms; Low boiling point naphtha — unspecified; [A complex residuum from the distillation of butane stream. It consists of aliphatic hydrocarbons having carbon numbers predominantly in the range of C4 through C6.]
CAS 68478-12-6 · GB MCL 649-364-00-8 · EC 270-791-7
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (petroleum), C6-8 catalytic reformer; Low boiling point cat-reformed naphtha; [A complex residuum from the catalytic reforming of C6-8 feed. It consists of hydrocarbons having carbon numbers predominantly in the range of C2 through C6.]
CAS 68478-15-9 · GB MCL 649-303-00-5 · EC 270-794-3
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (petroleum), catalytic cracking; Heavy Fuel oil; [A complex combination of hydrocarbons produced as the residual fraction from the distillation of the products from a catalytic cracking process. It consists predominantly of hydrocarbons having carbon numbers predominantly greater than C11 and boiling above approximately 200 oC (392 oF).]
CAS 92061-97-7 · GB MCL 649-043-00-2 · EC 295-511-0
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
Residues (petroleum), catalytic reformer fractionator residue distn.; Heavy Fuel oil; [A complex residuum from the distillation of catalytic reformer fractionator residue. It boils approximately above 399 oC (750 oF).]
CAS 68478-13-7 · GB MCL 649-025-00-4 · EC 270-792-2
Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.
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.
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.
