Dissociation Constants of Silicic Acid and Reaction of Silicate Ion upon Metallic Ions
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چکیده
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15 صفحه اولThe dissociation constants of tetrahydrofolic acid.
Six dissociable groups exist in tetrahydrofolic acid in the range Ho -3.0 to pH 14. The assignments in tetrahydrofolic acid by titrimetric and spectrophotometric comparisons with model compounds, +uninobenzoylglutamic acid and 2-amino-6,7-dimethyl-5,6,7,8-tetrahydro-4-pteridinone, are as follows: acidic ionization of amide, pK’ 10.5; Ns, pK’ 4.82; y-carboxyl, pK’ 4.8; cr-carboxyl, pK’ 3.5; N1, ...
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ژورنال
عنوان ژورنال: NIPPON KAGAKU KAISHI
سال: 1943
ISSN: 0369-4208,2185-0909
DOI: 10.1246/nikkashi1921.64.718