SUBSTANCE IDENTIFICATION PROFILE (SIP)

Transcription

1 Version v.2 20/07/2016 Reference Company Mixed Oxides and Zirconia Oxides Consortium (MOZO) Lead registrant: Solvay SI Parameter SUBSTANCE IDENTIFICATION PROFILE (SIP) Value / Not necessary / Not for SIP Remark / Justification 2.1.A a b a b c Name or other Identifiers of the substance IUPAC Name Other International chemical name Chemical Name Abbreviation Other names nitric acid; oxozirconium not relevant zirconium dinitrate oxide ZON zirconium, bis(nitrato-ĸo) oxozirconium, bis(nitrato-o) oxozirconium, dinitratooxozirconyl nitrate bis(nitrato) oxozirconium bis(nitrato-ĸo) oxozirconium dinitratooxozirconium NSC zirconium nitrate oxide zirconium oxide dinitrate zirconium oxide nitrate zirconium oxynitrate zirconyl dinitrate Zircosol ZN a EC Number b EC Name zirconium dinitrate oxide c EC Description not available a CAS Number b CAS Name zirconium, bis(nitrato-ĸo) oxo c CAS Description not available a IUBMB Number b INCI Number c Other Catalogue identifiers 2.1.B Substances (with core identifiers) also falling under this substance (with justification) NMR and SAXS studies have concluded that solutions of zirconium nitrates are complex polymeric species with free and bonded nitrate. The key difference between ZON (zirconium oxynitrate) and ZHN (zirconium hydroxynitrate) is the level of nitrate present; the work reported in the literature shows that for both ZHN and ZON, there is a polymeric hydroxylated Zr species with some nitrate bonded to it; the difference between ZHN and ZON lies in the levels of free nitrate in solution. Based on these analyses (which will be included in the REACH dossier), we can conclude that ZHN and ZON are the same for REACH registration. purposes. An overview of the ZHN compounds covered by the REACH dossier for ZON is given below. The Zr:nitrate ratio of all compounds covered by the dossier varies between 1:2.1 and 1:0.1. Note that all experiments of which the results are included in the dossier have been performed with ZON, therefore representing the lower limit of the Zr:nitrate range (i.e., the highest nitrate content). The only adverse effects observed in the experiments (e.g., acute oral toxicity, skin and eye corrosion/irritation) were local adverse effects (not systemic) and have been ascribed to the nitrate in the test item, not to the zirconium. Therefore, the information and conclusions in the dossier represent a worst case assessment for the compounds with a higher Zr:nitrate ratio (i.e., lower nitrate content) a Chemical Name zirconium hydroxide nitrate HO.NO3.Zr b EC Number Zr:NO3 ratio not specified in CAS registry c CAS Number a Chemical Name zirconium dinitrate oxide hydrate H2O.xN2O7.Zr b EC Number Zr:NO3 ratio 1: c CAS Number a Chemical Name zirconium hydroxide nitrate (Zr(OH)3.9(NO3)0.1) HO.NO3.Zr b EC Number Zr:NO3 ratio 1: c CAS Number a Chemical Name zirconium hydroxide nitrate (Zr(OH)3(NO3)), (T-4)- H3NO6Zr Zr:NO3 ratio 1: b EC Number c CAS Number a Chemical Name hydroxy(nitrato-o)oxozirconium HNO5Zr b EC Number Zr:NO3 ratio 1: c CAS Number a Chemical Name zirconium hydroxide nitrate (Zr(OH)2(NO3)2), (T- 4)- H2N2O8Zr Zr:NO3 ratio 1: b EC Number c CAS Number Information related to molecular and structural formula of the substance a Molecular Formula N2O7Zr Molecular formula for the reference substance b Structural Formula Structural formula for the reference substance c Smiles notation [Zr]=O.O[N+](=O)[O-].O[N+](=O)[O-] Smiles notation for the reference substance a Optical activity none b Typical ratio of (stereo) isomers a Molecular Weight g/mol b Molecular Weight range g/mol a Chemical Composition of the substance Main Constituent Name -Main Constituent zirconium dinitrate oxide b CAS Number -Main Constituent c EC Number -Main Constituent Molecular weight for the reference substance. Range for all covered substances. 20/07/2016 Page 1

2 Version Company Mixed Oxides and Zirconia Oxides v.2 Consortium (MOZO) 20/07/2016 Lead registrant: Solvay Reference SI Parameter SUBSTANCE IDENTIFICATION PROFILE (SIP) Value / Not necessary / Not for SIP Remark / Justification d Concentration range -Main Constituent 80% - Lower value e Concentration range -Main Constituent 100% - Upper value f Typical concentration -Main Constituent (= 97% Degree of purity) a a Impurity / Impurities (above 1% or lower if contributing to the hazard or PTB profile) Agreed strategy for Impurity profile on SIP The impurity profile is not relevant for the SIP. It can however be relevant for Classification and Labelling. Additive(s) (above 1% or lower if contributing to the hazard) Agreed strategy for Additives profile on SIP none Substance sameness checking procedure Agreed Spectral data to be used Agreed Analytical Methods to be used XRF; CHN analysis (combustion followed by GC) Expressed as % dry weight, excluding water. Expressed as % dry weight, excluding water. The registration dossier will address the pure substance/aqueous solutions of pure substance. All registrants will need to specify the impurities present in the company-specific (confidential) part of their registration dossier (section 1-3). If hazardous impurities are present in a registrant's substance, then the registrant will have to justify that the differences do not modify the conclusions in IUCLID (and the CSR, if relevant) and do not require a different C&L or - if relevant - different exposure scenarios. This information will be reported in the company specific (confidential) part of the registration dossier. IR data will only show the nitrate groups and not the interaction of the zirconium to nitrate bond. There is no practical spectral technique that will show the nature of the material. The key aspect of characterising this material is the molar ratio of the Zr to NO3 groups. In order to analysis this it is necessary to obtain the concentration of Zr (e.g., using XRF) and the concentration of the nitrate (CHN analysis, assuming all N to be present as nitrate). 20/07/2016 Page 2

3 Version Company Mixed Oxides and Zirconia Oxides v.2 Consortium (MOZO) 20/07/2016 Lead registrant: Solvay Reference SI Parameter SUBSTANCE IDENTIFICATION PROFILE (SIP) Value / Not necessary / Not for SIP Remark / Justification Approval of the SIP Agreed approval method for the sameness checking procedure using this SIP (Consortium) Individual discussions with Consortium members result in a generic SIP. This generic SIP, after approval by the involved Consortium members, is sent to the entire SIEF for approval Agreed approval method for the sameness checking procedure using this SIP (SIEF) A generic SIP is sent to the entire SIEF. SIEF members that do not agree with the draft generic SIP must notify ARCADIS before the deadline, including any relevant information. SIEF members that agree with the draft generic SIP do not need to notify ARCADIS. By signing or otherwise approving this Substance Information Profile (SIP), the Company declares that he agrees with the content and purpose of this Substance Identification Profile. He agrees that his substance does to the best of his knowledge completely fall under the substance identity being represented by the SIP sections 2.1 up to 2.3 sufficient for the purpose of meeting the SIEF requirements and opting for the joint submission Registration dossier to be created by the lead registrant in line with the REACH requirements. He agrees to fulfil the requirements of the Verification Method described and agreed in the SIP Section 2.4 and takes the appropriate follow-up actions if the substance appears not to fall under the SIP agreed. He agrees that the final result of the Agreed Verification Method for sameness checking procedure is binding. He agrees that he will inform the Consortium via the Secretariat or the SIEF via the Lead registrant if he has (new) information that might change the content of this SIP or if his Substance is changed in such a way that it might or does no longer fall under the SIP or might potentially have an impact on the content of the Registration dossier He understands and agrees to be fully responsible for the proper linkage of the substance to the REACH Registration dossier and informing of his supply chain on the safe use of his substance and fulfilling his REACH requirements accordingly. 20/07/2016 Page 3

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