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.
Gas oils (petroleum), hydrodesulfurized heavy vacuum; Heavy Fuel oil; [A complex combination of hydrocarbons obtained from a catalytic hydrodesulfurization process. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and boiling in the range of approximately 350 oC to 600 oC (662 oF to 1112 oC). This stream is likely to contain 5 wt. % or more of 4- to 6- membered condensed ring aromatic hydrocarbons.]
CAS 64742-86-5 · GB MCL 649-017-00-0 · EC 265-189-6
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.
Gas oils (petroleum), hydrodesulfurized; Gasoil — unspecified; [A complex combination of hydrocarbons obtained from a petroleum stock by treating with hydrogen to convert organic sulfur to hydrogen sulfide which is removed. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C13 through C25 and boiling in the range of approximately 230 oC to 400 oC (446 oF to 752 oF).]
CAS 64742-79-6 · GB MCL 649-222-00-5 · EC 265-182-8
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.
Gas oils (petroleum), hydrotreated vacuum; Heavy Fuel oil; [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 in the range of C13 through C50 and boiling in the range of approximately 230 oC to 600 oC (446 oF to 1112 oF). This stream is likely to contain 5 wt.% or more of 4- to 6-membered condensed ring aromatic hydrocarbons.]
CAS 64742-59-2 · GB MCL 649-015-00-X · EC 265-162-9
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.
Gas oils (petroleum), light vacuum, thermal-cracked hydrodesulfurized; Cracked gasoil; [A complex combination of hydrocarbons obtained by catalytic dehydrosulfurization of thermal-cracked light vacuum petroleum. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C14 through C20 and boiling in the range of approximately 270 oC to 370 oC (518 oF to 698 oF).]
CAS 97926-59-5 · GB MCL 649-450-00-5 · EC 308-278-8
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.
Gas oils (petroleum), solvent-refined; Gasoil — unspecified; [A complex combination of hydrocarbons obtained as the raffinate from a solvent extraction process. It consists predominantly of aliphatic hydrocarbons having carbon numbers predominantly in the range of C11 through C25 and boiling in the range of approximately 205 oC to 400 oC (401 oF to 752 oF).]
CAS 64741-90-8 · GB MCL 649-213-00-6 · EC 265-092-9
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.
Gas oils (petroleum), steam-cracked; Cracked gasoil; [A complex combination of hydrocarbons produced by distillation of the products from a steam cracking process. It consists of hydrocarbons having carbon numbers predominantly greater than C9 and boiling in the range of from approximately 205 oC to 400 oC (400 oF to 752 oF).]
CAS 68527-18-4 · GB MCL 649-442-00-1 · EC 271-260-2
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.
Gas oils (petroleum), thermal-cracked, hydrodesulfurized; Cracked gasoil
CAS 92045-29-9 · GB MCL 649-444-00-2 · EC 295-411-7
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.
Gas oils, hydrotreated; Gasoil — unspecified; [A complex combination of hydrocarbons obtained from the redistillation of the effluents from the treatment of paraffins with hydrogen in the presence of a catalyst. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C17 through C27 and boiling in the range of approximately 330 oC to 340 oC (626 oF to 644 oF).]
CAS 97862-78-7 · GB MCL 649-238-00-2 · EC 308-128-1
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.
Gas oils, paraffinic; Gasoil — unspecified; [A distillate obtained from the redistillation of a complex combination of hydrocarbons obtained by the distillation of the effluents from a severe catalytic hydrotreatment of paraffins. It boils in the range of approximately 190 oC to 330 oC (374 oF to 594 oF).]
CAS 93924-33-5 · GB MCL 649-233-00-5 · EC 300-227-8
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.
Gases (petroleum, light steam-cracked, butadiene conc.; Petroleum gas; [A complex combination of hydrocarbons produced by the distillation of products from a thermal cracking process, It consists of hydrocarbons having a carbon number predominantly of C4.]
CAS 68955-28-2 · GB MCL 649-111-00-1 · EC 273-265-5
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.
Gases (petroleum), alkylation feed; Petroleum gas; [A complex combination of hydrocarbons produced by the catalytic cracking of gas oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C3 through C4.]
CAS 68606-27-9 · GB MCL 649-095-00-6 · EC 271-737-5
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.
Gases (petroleum), amine system feed; Refinery gas; [The feed gas to the amine system for removal of hydrogen sulfide. It consists of hydrogen. Carbon monoxide, carbon dioxide, hydrogen sulfide and aliphatic hydrocarbons having carbon numbers predominantly in the range of C1 through C5 may also be present.]
CAS 68477-65-6 · GB MCL 649-120-00-0 · EC 270-746-1
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.
Gases (petroleum), benzene unit hydrodesulfurizer off; Refinery gas; [Off gases produced by the benzene unit. It consists primarily of hydrogen. Carbon monoxide and hydrocarbons having carbon numbers predominantly in the range of C1 through C6, including benzene, may also be present.]
CAS 68477-66-7 · GB MCL 649-121-00-6 · EC 270-747-7
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.
Gases (petroleum), benzene unit hydrotreater depentanizer overheads; Refinery gas; [A complex combination produced by treating the feed from the benzene unit with hydrogen in the presence of a catalyst followed by depentanizing. It consists primarily of hydrogen, ethane and propane with various small amounts of nitrogen, carbon monoxide, carbon dioxide and hydrocarbons having carbon numbers predominantly in the range of C1 through C6. It may contain trace amounts of benzene.]
CAS 68602-82-4 · GB MCL 649-149-00-9 · EC 271-623-5
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.
Gases (petroleum), benzene unit recycle, hydrogen-rich; Refinery gas; [A complex combination of hydrocarbons obtained by recycling the gases of the benzene unit. It consists primarily of hydrogen with various small amounts of carbon monoxide and hydrocarbons having carbon numbers in the range of C1 through C6.]
CAS 68477-67-8 · GB MCL 649-122-00-1 · EC 270-748-2
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.
Gases (petroleum), blend oil, hydrogen nitrogen- rich; Refinery gas; [A complex combination of hydrocarbons obtained by distillation of a blend oil. It consists primarily of hydrogen and nitrogen with various small amounts of carbon monoxide, carbon dioxide, and aliphatic hydrocarbons having carbon numbers predominantly in the range of C1 through C5.]
CAS 68477-68-9 · GB MCL 649-123-00-7 · EC 270-749-8
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.
Gases (petroleum), butane splitter overheads; Petroleum gas; [A complex combination of hydrocarbons obtained from the distillation of the butane stream. It consists of aliphatic hydrocarbons having carbon numbers predominantly in the range of C3 through C4.]
CAS 68477-69-0 · GB MCL 649-206-00-8 · EC 270-750-3
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.
Gases (petroleum), C1-5, wet; Petroleum gas; [A complex combination of hydrocarbons produced by the distillation of crude oil and/ or the cracking of tower gas oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C1 through C5.]
CAS 68602-83-5 · GB MCL 649-092-00-X · EC 271-624-0
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.
Gases (petroleum), C2-3-; Petroleum gas; [A complex combination of hydrocarbons produced by the distillation of products from a catalytic fractionation process. It contains predominantly ethane, ethylene, propane, and propylene.]
CAS 68477-70-3 · GB MCL 649-207-00-3 · EC 270-751-9
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.
Gases (petroleum), C2-4, sweetened; Petroleum gas; [A complex combination of hydrocarbons obtained by subjecting a petroleum distillate to a sweetening process to convert mercaptans or to remove acidic impurities. It consists predominantly of saturated and unsaturated hydrocarbons having carbon numbers predominantly in the range of C2 through C4 and boiling in the range of approximately – 51 °C to – 34 °C (– 60 °F to – 30 °F).]
CAS 68783-65-3 · GB MCL 649-099-00-8 · EC 272-205-5
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.
Gases (petroleum), C2-return stream; Refinery gas; [A complex combination of hydrocarbons obtained by the extraction of hydrogen from a gas stream which consists primarily of hydrogen with small amounts of nitrogen, carbon monoxide, methane, ethane, and ethylene. It contains predominantly hydrocarbons such as methane, ethane, and ethylene with small amounts of hydrogen, nitrogen and carbon monoxide.]
CAS 68477-84-9 · GB MCL 649-128-00-4 · EC 270-766-0
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.
gases (petroleum), C3-4, isobutane-rich; Petroleum gas; [A complex combination of hydrocarbons from the distillation of saturated and unsaturated hydrocarbons usually ranging in carbon numbers from C3 through C6, predominantly butane and isobutane. It consists of saturated and unsaturated hydrocarbons having carbon numbers in the range of C3 through C4, predominantly isobutane.]
CAS 68477-33-8 · GB MCL 649-204-00-7 · EC 270-724-1
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.
Gases (petroleum), C3-4; Petroleum gas; [A complex combination of hydrocarbons produced by distillation of products from the cracking of crude oil. It consists of hydrocarbons having carbon numbers in the range of C3 through C4, predominantly of propane and propylene, and boiling in the range of approximately – 51 °C to – 1 °C (– 60 °F to 30 °F.)]
CAS 68131-75-9 · GB MCL 649-177-00-1 · EC 268-629-5
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.
Gases (petroleum), C3-5 olefinic-paraffinic alkylation feed; Petroleum gas; [A complex combination of olefinic and paraffinic hydrocarbons having carbon numbers in the range of C3 through C5 which are used as alkylation feed. Ambient temperatures normally exceed the critical temperature of these combinations.]
CAS 68477-83-8 · GB MCL 649-067-00-3 · EC 270-765-5
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.
If you spot an error in this library, please contact us so we can check the entry against its source.
Contact us
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.
