Kaolinite synthesis at 25°C
Science
By: J.D. Hem and Carol J. Lind
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Abstract
The addition of quercetin, an organic flavone (C15H10O7), to aqueous solutions containing silica and aluminum and adjusted to final pH's from 6.5 to 8.5 produced a 1 : 1 alumninosilicate precipitate which, after 6 to 16 months of aging in solution at 25°C, contained as much as 5 percent well-formed kaolinite plates. Similar solutions containing no organic material produced relatively amorphous precipitates with the same composition and stability (standard free energy of formation = -897±1 kilocalories per mole) but with substantially smaller amounts of crystaline material even after 2 years of aging.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Kaolinite synthesis at 25°C |
| Series title | Science |
| DOI | 10.1126/science.184.4142.1171 |
| Volume | 184 |
| Issue | 4142 |
| Year Published | 1974 |
| Language | English |
| Publisher | AAAS |
| Description | 3 p. |
| First page | 1171 |
| Last page | 1173 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |