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Committee for Risk Assessment RAC Annex 1 Background Document To Committee for Risk Assessment RAC Annex 1 Background document to the Opinion proposing harmonised classification and labelling at EU level of barium diboron tetraoxide EC Number: 237-222-4 CAS Number: 13701-59-2 CLH-O-0000006847-60-01/F The background document is a compilation of information considered relevant by the dossier submitter or by RAC for the proposed classification. It includes the proposal of the dossier submitter and the conclusion of RAC. It is based on the official CLH report submitted to public consultation. RAC has not changed the text of this CLH report but inserted text which is specifically marked as ‘RAC evaluation’. Only the RAC text reflects the view of RAC. Adopted 17 September 2020 P.O. Box 400, FI-00121 Helsinki, Finland | Tel. +358 9 686180 | Fax +358 9 68618210 | echa.europa.eu [04.01-ML-009.02] ANNEX 1 - BACKGROUND DOCUMENT TO RAC OPINION ON BARIUM DIBORON TETRAOXIDE CLH report Proposal for Harmonised Classification and Labelling Based on Regulation (EC) No 1272/2008 (CLP Regulation), Annex VI, Part 2 International Chemical Identification: Barium diboron tetraoxide EC Number: 237-222-4 CAS Number: 13701-59-2 Index Number: Not assigned Contact details for dossier submitter: Swedish Chemicals Agency Esplanaden 3a, P.O Box 2 SE-172 13 Sundbyberg, Sweden [email protected] +46 8 519 41 100 Version number: 2 Date: 2019-08-09 ANNEX 1 - BACKGROUND DOCUMENT TO RAC OPINION ON BARIUM DIBORON TETRAOXIDE CONTENTS 1 IDENTITY OF THE SUBSTANCE ...................................................................................................................... 6 1.1 NAME AND OTHER IDENTIFIERS OF THE SUBSTANCE .............................................................................................. 6 1.2 COMPOSITION OF THE SUBSTANCE ........................................................................................................................ 7 2 PROPOSED HARMONISED CLASSIFICATION AND LABELLING ........................................................... 8 2.1 PROPOSED HARMONISED CLASSIFICATION AND LABELLING ACCORDING TO THE CLP CRITERIA ........................... 8 3 HISTORY OF THE PREVIOUS CLASSIFICATION AND LABELLING ................................................... 10 4 JUSTIFICATION THAT ACTION IS NEEDED AT COMMUNITY LEVEL .............................................. 13 5 IDENTIFIED USES .............................................................................................................................................. 13 6 DATA SOURCES.................................................................................................................................................. 13 7 PHYSICOCHEMICAL PROPERTIES .............................................................................................................. 13 8 EVALUATION OF PHYSICAL HAZARDS ..................................................................................................... 14 9 TOXICOKINETICS (ABSORPTION, METABOLISM, DISTRIBUTION AND ELIMINATION) ........... 15 9.1 SHORT SUMMARY AND OVERALL RELEVANCE OF THE PROVIDED TOXICOKINETIC INFORMATION ON THE PROPOSED CLASSIFICATION(S) ...................................................................................................................................... 24 9.1.1 Justification for read-across from boric acid and borate salts ................................................................. 24 9.1.1.1 Consideration of barium as the counter ion ............................................................................................................ 25 9.1.2 Toxicokinetic data on boric acid and borate salts .................................................................................... 25 9.1.3 Toxicokinetic data on barium salts ........................................................................................................... 26 10 EVALUATION OF HEALTH HAZARDS ......................................................................................................... 27 10.1 ACUTE TOXICITY - ORAL ROUTE ..................................................................................................................... 27 10.1.1 Short summary and overall relevance of the provided information on acute oral toxicity .................. 28 10.1.2 Comparison with the CLP criteria ....................................................................................................... 29 10.1.3 Conclusion on classification and labelling for acute oral toxicity ....................................................... 29 10.2 ACUTE TOXICITY - DERMAL ROUTE ................................................................................................................ 30 10.2.1 Short summary and overall relevance of the provided information on acute dermal toxicity.............. 31 10.2.2 Comparison with the CLP criteria ....................................................................................................... 31 10.2.3 Conclusion on classification and labelling for acute dermal toxicity .................................................. 32 10.3 ACUTE TOXICITY - INHALATION ROUTE .......................................................................................................... 32 10.3.1 Short summary and overall relevance of the provided information on acute inhalation toxicity ........ 33 10.3.2 Comparison with the CLP criteria ....................................................................................................... 34 10.3.3 Conclusion on classification and labelling for acute inhalation toxicity ............................................. 34 10.4 SKIN CORROSION/IRRITATION ......................................................................................................................... 40 10.5 SERIOUS EYE DAMAGE/EYE IRRITATION ......................................................................................................... 40 10.6 RESPIRATORY SENSITISATION......................................................................................................................... 40 10.7 SKIN SENSITISATION ....................................................................................................................................... 40 10.8 GERM CELL MUTAGENICITY ........................................................................................................................... 40 10.9 CARCINOGENICITY ......................................................................................................................................... 40 10.10 REPRODUCTIVE TOXICITY............................................................................................................................... 40 10.10.1 Adverse effects on sexual function and fertility .................................................................................... 40 10.10.2 Short summary and overall relevance of the provided information on adverse effects on sexual function and fertility ................................................................................................................................................ 66 10.10.2.1 Animal studies .................................................................................................................................................. 66 10.10.2.2 Human data ....................................................................................................................................................... 72 10.10.3 Comparison with the CLP criteria ....................................................................................................... 75 10.10.4 Adverse effects on development ............................................................................................................ 76 10.10.5 Short summary and overall relevance of the provided information on adverse effects on development 95 10.10.5.1 Animal studies .................................................................................................................................................. 95 10.10.5.2 Human data ..................................................................................................................................................... 100 ANNEX 1 - BACKGROUND DOCUMENT TO RAC OPINION ON BARIUM DIBORON TETRAOXIDE 10.10.6 Comparison with the CLP criteria ..................................................................................................... 102 10.10.7 Adverse effects on or via lactation ..................................................................................................... 103 10.10.8 Short summary and overall relevance of the provided information on effects on or via lactation .... 107 10.10.8.1 Animal studies ................................................................................................................................................ 107 10.10.8.2 Human data ..................................................................................................................................................... 107 10.10.9 Comparison with the CLP criteria ..................................................................................................... 107 10.10.10 Conclusion on classification and labelling for reproductive toxicity ................................................. 108 10.11 SPECIFIC TARGET ORGAN TOXICITY-SINGLE EXPOSURE ................................................................................ 119 10.12 SPECIFIC TARGET ORGAN TOXICITY-REPEATED EXPOSURE ..........................................................................
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