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Home > The Substance Groupings Initiative > Profile for the Cobalt-Containing Substance Grouping

Profile for the Cobalt-Containing Substance Grouping

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This document describes the considerations for development of a grouping of substances for assessment under the Canadian Environmental Protection Act, 1999 (CEPA 1999), and the rationale for considering them to be a priority. The composition of the grouping may change with additional information-gathering. More information on categorization results for these substances is available.

Grouping Description:

  • This grouping is based on a common moiety of ecological concern (cobalt).
  • Fifty substances are being considered for inclusion in this grouping and are identified in the list of Substances being considered for inclusion to the Cobalt-Containing Substance Grouping.
  • Among the proposed grouping members are substances which may release other moieties of potential concern (including Cd, Cr, Hg, and Pb). These substances may be addressed through other approaches for these moieties.
  • This grouping includes organometallic substances, which may require sub-grouping and/or individual consideration. As well, this grouping contains a number of organic-metal salts, for which the organic component may require consideration.

Selection Considerations:

  • Potential ecological effects of concern. Potential ecological effects of concern have been identified for this grouping during previous assessment activities for cobalt, cobalt chloride and sulphuric acid, cobalt salt (see substances in Batch 10 of the Challenge).
  • Potential environmental exposures of concern. Some of these substances can be released to the environment from various industrial sectors.
  • Potential exposure of consumers and children. A survey conducted for phase 1 of the Domestic Substances List (DSL) Inventory Update identified that cobalt-containing substances may have a range of consumer applications including: paints and coatings, plastic and rubber materials, food packaging, ink toners and colourants that could result in exposure to humans, including children. Note that the list of potential uses or sectors involved may not be comprehensive if not all substances included in the grouping were included in the Phase 1 of the DSL Inventory Update survey. The use and/or sectors listed may not apply to all substances included in the grouping.
    • A subset of these substances are used in high volumes in Canada and members of this group also appear on both Organisation for Economic Co-operation and DevelopmentFootnote a and United States Environmental Protection Agency Next link will take you to another Web site High Production Volume lists.
  • Potential to leverage/align with international activity.
    • Cobalt-containing substances have been identified both domestically and internationally to be a priority for further assessment. This provides opportunities for efficiencies and collaboration.
    • Several agencies have published relevant risk assessments.
    • Cobalt chloride has been designated as a candidate Substance of Very High Concern in the European UnionFootnote b, and four additional cobalt compounds have been proposed for the Next link will take you to another Web site Candidate List of Substances of Very High Concern for authorization, 2010.
  • Potential risk assessment and risk management efficiencies.
    • To efficiently assess and effectively manage exposure and risk, all sources of the moiety need to be considered. Cobalt, cobalt chloride and sulphuric acid, cobalt salt were previously assessed under the Challenge phase of the Chemicals Management Plan (CMP) (see substances in Batch 10 of the Challenge) and were found not to meet any of the criteria under section 64 of CEPA 1999.

Potential Sectoral Involvement Identified through Phase 1 of the DSL Inventory Update:

Note that the list of potential uses or sectors involved may not be comprehensive if not all substances included in the grouping were included in Phase 1 of the DSL Inventory Update survey. The use and/or sectors listed may not apply to all substances included in the grouping.

  • Smelting and refining (non-ferrous)
  • Automotive manufacturing
  • Paints and coatings, printing ink manufacturers
  • Chemical manufacturing (all other basic, other miscellaneous chemicals) and distributors
  • Power generators
  • Plastics and rubber manufacturers
  • Agricultural Feed Wholesaler-Distributors
  • Petroleum Refineries
  • Petrochemical Manufacturing
Substances being considered for inclusion in the Cobalt-Containing Substance Grouping
CAS RN Substance Name Substance Category

Table 1 footnotes

Table 1 footnote 1

These substances were previously addressed in the Draft Screening Assessment of Substances of Low Concern Using the Rapid Screening Approach.

Return to table 1 footnote 1 referrer

Table 1 footnote 2

These substances were previously addressed in Batch 10 of the Challenge under the first phase of the Chemicals Management Plan.

Return to table 1 footnote 2 referrer
71-48-7 Acetic acid, cobalt(2+) salt Organic-metal salt
136-52-7 Hexanoic acid, 2-ethyl-, cobalt(2+) salt Organic-metal salt
513-79-1 Carbonic acid, cobalt(2+) salt (1:1) Inorganics
1307-86-4 Cobalt hydroxide (Co(OH)3) Inorganics
1307-96-6 Cobalt oxide (CoO) Inorganics
1317-42-6 Cobalt sulfide (CoS) Inorganics
1560-69-6 Propanoic acid, cobalt(2+) salt Organic-metal salt
6700-85-2 Octanoic acid, cobalt salt Organic-metal salt
7542-09-8 Carbonic acid, cobalt salt Inorganics
8011-87-8 C.I. Pigment Green 19 UVCBs-inorganic
10141-05-6 Nitric acid, cobalt(2+) salt Inorganics
10210-68-1 Cobalt, di-µ-carbonylhexacarbonyldi-, (Co-Co) Organometallics
12602-23-2 Cobalt, bis[carbonato(2-)]hexahydroxypenta- Inorganics
13455-25-9 Chromic acid (H2CrO4), cobalt(2+) salt (1:1) Inorganics
13455-36-2 Phosphoric acid, cobalt(2+) salt (2:3) Inorganics
13586-82-8 Hexanoic acid, 2-ethyl-, cobalt salt Organic-metal salt
13586-84-0 Octadecanoic acid, cobalt salt Organic-metal salt
13782-01-9 Cobaltate(3-), hexakis(nitrito-N)-, tripotassium, (OC-6-11)- Inorganics
21041-93-0 Cobalt hydroxide (Co(OH)2) Inorganics
27253-31-2 Neodecanoic acid, cobalt salt Organic-metal salt
27685-51-4 Cobaltate(2-), tetrakis(thiocyanato-N)-, mercury(2+) (1:1), (T-4)- Organic-metal salt
61789-51-3 Naphthenic acids, cobalt salts UVCBs-organic-metal salts
65997-18-4 Frits, chemicals UVCBs-inorganic
67711-89-1 Calcines, copper roasting UVCBs-inorganic
68186-89-0 C.I. Pigment Black 25 UVCBs-inorganic
68187-11-1 C.I. Pigment Blue 36 UVCBs-inorganic
68457-13-6 Cobalt, borate neodecanoate complexes UVCBs-organic-metal salts
68608-93-5 C.I. Pigment Violet 48 UVCBs-inorganic
68610-13-9 C.I. Pigment Violet 47 UVCBs-inorganic
68988-10-3 Zirconium, dipropylene glycol iso-Bu alc. neodecanoate propionate cobalt complexes UVCBs-organometallic
69012-71-1 Leach residues, zinc ore-calcine, cobalt repulp UVCBs-inorganic
69012-72-2 Leach residues, zinc ore-calcine, zinc cobalt UVCBs-inorganic
91053-46-2 Leach residues, zinc ore-calcine, cadmium-copper ppt. UVCBs-inorganic
94246-88-5 Cobalt, (2-ethylhexanoato-O)(isooctanoato-O)- Organic-metal salt
121053-28-9 Electrolytes, cobalt-manufg. UVCBs-inorganic
121053-29-0 Slimes and Sludges, cobalt refining UVCBs-inorganic
121053-30-3 Slimes and Sludges, cobalt electrolytic UVCBs-inorganic
124222-14-6 Flue dust, cobalt-refining UVCBs-inorganic
124222-15-7 Residues, cobalt-refining UVCBs-inorganic
124222-18-0 Residues, precious metal-refining UVCBs-inorganic
129618-35-5 Electrolytes, copper-manufg. UVCBs-inorganic
129618-36-6 Solutions, copper hydrometallurgical UVCBs-inorganic
129618-39-9 Solutions, cobalt hydrometallurgical UVCBs-inorganic
10534-89-1Table 1 footnote 1 Cobalt(3+), hexaammine-, trichloride, (OC-6-11)- Inorganics
38582-17-1Table 1 footnote 1 Cyclohexanebutanoic acid, cobalt(2+) salt Organic-metal salt
72869-37-5Table 1 footnote 1 Zinc sulfide (ZnS), cobalt and copper-doped UVCBs-inorganic
7440-48-4Table 1 footnote 2 Cobalt Inorganics
7646-79-9Table 1 footnote 2 Cobalt chloride (CoCl2) Inorganics
10124-43-3Table 1 footnote 2 Sulfuric acid, cobalt(2+) salt (1:1) Inorganics
10393-49-4Table 1 footnote 2 Inorganics

Footnotes

Footnote 1

Organisation for Economic Co-operation and Development. 2007. The 2007 OECD List of High Production Volume Chemicals. Series on Testing and Assessment Number 112.

Return to footnote a referrer

Footnote 2

European Chemicals Agency. 2010. Next link will take you to another Web site Annex XIV recommendations.

Return to footnote b referrer

Date Modified: 2012-07-10

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