Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 700-802-7 | CAS number: -
Additional physico-chemical information
Administrative data
Link to relevant study record(s)
Description of key information
As indicated before, the addition of acetate groups to the polyamines increase their water solubility. The polyamines when dissolved in water take up positive charged hydrogens to become cationic substances. As a consequence the water solution becomes alkaline. With the addition of acetic acid, the cationic substance is already present in the Polyamine acetates, linked to the negatively charged acetate ions. The polyamine acetate substance is therefore more easily soluble in water, which can only be explained from the dissociation of the acetate ions, as without that, uncharged molecules would not be easier soluble. Following the dissociation of the polyamine acetate salts, there is no principle difference after absorption of the polyamine structures following exposure as polyamines as such or as polyamine acetate.
Additional information
As indicated before, the addition of acetate groups to the polyamines increase their water solubility. The polyamines when dissolved in water take up positive charged hydrogens to become cationic substances. As a consequence the water solution becomes alkaline. With the addition of acetic acid, the cationic substance is already present in the Polyamine acetates, linked to the negatively charged acetate ions. The polyamine acetate substance is therefore more easily soluble in water, which can only be explained from the dissociation of the acetate ions, as without that, uncharged molecules would not be easier soluble. Following the dissociation of the polyamine acetate salts, there is no principle difference after absorption of the polyamine structures following exposure as polyamines as such or as polyamine acetate.
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