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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Physical & Chemical properties

Dissociation constant

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
dissociation constant
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
2002
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6
Guideline:
other: Estimation Program "ACD/pKa DB" (Advanced Chemistry Development Inc., Toronto, Canada)'
Deviations:
no
GLP compliance:
no
Dissociating properties:
yes
No.:
#1
pKa:
13.7
Remarks on result:
other: aliphatic hydroxyl group

Except for the aliphatic OH-group, the substance does not contain any functional group which can be protonated or deprotonated significantly in aqueous solution. For the aliphatic hydroxyl group a pKa value of 13.7 was calculated with the computer program ACD/pKa DB.

Therefore the substance is to be considered a neutral molecule in the pH range 2 -10, which is of relevance for aqueous biological systems.

Conclusions:
Except for the aliphatic OH-group, the substance does not contain any functional group which can be protonated or deprotonated significantly in aqueous solution.
For the aliphatic hydroxyl group a pKa value of 13.7 was calculated with the computer program ACD/pKa DB.
Therefore the substance is to be considered a neutral molecule in the pH range 2-10, which is of relevance for aqueous biological systems.
Executive summary:

Except for the aliphatic OH-group, the substance does not contain any functional group which can be protonated or deprotonated significantly in aqueous solution. For the aliphatic hydroxyl group a pKa value of 13.7 was calculated with the computer program ACD/pKa DB. Therefore the substance is to be considered a neutral molecule in the pH range 2 -10, which is of relevance for aqueous biological systems.

Description of key information

Except for the aliphatic OH-group, the substance does not contain any functional group which can be protonated or deprotonated significantly in aqueous solution.
For the aliphatic hydroxyl group a pKa value of 13.7 was calculated with the computer program ACD/pKa DB. Therefore the substance is to be considered a neutral molecule in the pH range 2-10, which is of relevance for aqueous biological systems.

Key value for chemical safety assessment

pKa at 20°C:
13.7

Additional information