Registration Dossier
Registration Dossier
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EC number: 267-956-0 | CAS number: 67953-76-8
Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water
- the study does not need to be conducted because the substance is known to be soluble in water to form a stable mixture
- Endpoint:
- pyrophoric liquids
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied
Referenceopen allclose all
Description of key information
Flammability [HEDP-xK]: non-flammable
Key value for chemical safety assessment
- Flammability:
- not classified
Additional information
Salts of HEDP are involatile and are demonstrated to have high melting temperature of >450°C. The requirement to test the substance for pyrophoricity and flammability in contact with water was waived in accordance with Section 1 of REACH Annex IX, because there is no indication on the basis of structure and experience in use and handling that the substance is pyrophoric (flammable in contact with air) or flammable in contact with water.
Preliminary screening studies were performed with HEDP acid and HEDP-4Na according to test method A.10 flammability of solids. In both cases the test material failed to ignite and no further testing was performed. These results are read-across to potassium salts of HEDP as the salts are not expected to exhibit higher flammable properties than their corresponding acids.
Justification for classification or non-classification
Potassium salts of HEDP are not classified for flammability based on read-across from HEDP-acid and HEDP-4Na. Both substances failed to ignite in preliminary screening studies performed in accordance with EU test method A.10.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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