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EC number: 203-529-7
CAS number: 107-88-0
Data on pKa derived according to approach 1 (see above - value
determined for 1,3-butanediol: 15.5 +/- 0.5) and approach 2 (see above -
value determined for 1,3-butanediol: 14.8 +/- 0.2) were used to derive a
so-called "best value" for acid ionisation constant pKa.
"Best value" for pKa derived for 1,3-butanediol:
pKa 15.1 (+/- 0.3)
The acid ionisation constant pKa was determined in a reliable
well-documented published study using potentiometric titration. Two
different approaches led to pKa values very close to each other.
Approach 1: pKa 15.5 +/- 0.5
Approach 2: pKa 14.8 +/- 0.2
These results were used to derive a so-called "best value" for acid
ionisation constant pKa.
"Best value" for pKa derived for 1,3-butanediol: pKa 15.1
Concluding, 1,3-butanediol is of very low acidity. The pKa value is in
the range of pure water. It must therefore be considered to be
non-dissociated under relevant environmental conditions.
Dissociation constant pKa (acidic; potentiometric method): 15.1
"Best value" for pKa derived for 1,3-butanediol: pKa 15.1 (+/- 0.3)
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