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EC number: 267-956-0
CAS number: 67953-76-8
Boiling point: HEDP salt melts above 450°C.
The requirement to conduct a
boiling point study for the substance is waived because the substance
has a melting temperature of >450°C. This statement is supported by a
recent, reliable DSC test which demonstrates that the parent HEDP acid
does not melt below 450°C. The DSC thermograms show evidence of loss of
water at about 100°C. Salts would also be expected to undergo thermal
loss of water as the parent acid. This conclusion is supported by
available data for HEDP-4Na which indicates that HEDP-4Na undergoes loss
of water from 103°C at 981 mBar. Similarly, in available secondary
sources, HEDP-xK has a reported initial boiling point of 100°C.
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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