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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Reference
Endpoint:
dissociation constant
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18.05.2012-07.06.2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Qualifier:
according to guideline
Guideline:
other: as mention below
Principles of method if other than guideline:
Measurement of capacity of a compound to dissociate into respective ions.
GLP compliance:
no
Specific details on test material used for the study:
- Name of test material : Ethyltriphenylfosfonium bromide
- Molecular formula : C20H20P.Br
- Molecular weight : 371.256 g/mol
- Smiles notation : [P+](c1ccccc1)(c1ccccc1)(c1ccccc1)CC.[BrH-]
- InChl : 1S/C20H20P.BrH/c1-2-21(18-12-6-3-7-13-18,19-14-8-4-9-15-19)20-16-10-5-11-17-20;/h3-17H,2H2,1H3;1H/q+1;/p-1
- Substance type: Organic
- Physical state: Solid
- Physical Appearance: white powder
- Purity: 98.6%
- Storage Conditions: 1. Ambient Temp (23 to 27 °C) √ (Store in a cool place. Keep containers tightly closed in a dry and well ventilated place)
Dissociating properties:
yes
No.:
#1
pKa:
0
Temp.:
30 °C
Remarks on result:
other: No other detail available
Conclusions:
The experimental pKa value for ethyltriphenylfosfonium bromide was determine to be 0.000000002 at 30 deg C indicating that it has dissociation properties.
Executive summary:

The experimental pKa value for ethyltriphenylfosfonium bromide was determine to be 0.000000002 at 30 deg C indicating that it has dissociation properties.

Description of key information

The experimental pKa value for ethyltriphenylfosfonium bromide was determine to be 0.000000002 at 30 deg C indicating that it has dissociation properties.

Key value for chemical safety assessment

Additional information

The experimental pKa value for ethyltriphenylfosfonium bromide was determine to be 0.000000002 at 30 deg C indicating that it has dissociation properties.