File:CaPhytatePreparation2.JPG
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Preparation of calcium phytate for washing iron gall ink manuscripts, following the instructions on the Iron Gall Ink Website (May 2007): https://irongallink.org/images/file/pdf%209_preparation%20of%20calcium%20phytate_ok.pdf. Calcium carbonate powder has been added to phytic acid solution and mixed with cold deionized water. The pH is being gradually increased by adding 3% ammonium hydroxide. In this image, the pH reads as 5.72, and the solution is becoming cloudy. Image taken April 2024 by Jennifer Evers.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:27, 22 April 2024 | | 3,024 × 4,032 (633 KB) | Kkelly (talk | contribs) | Preparation of calcium phytate for washing iron gall ink manuscripts, following the instructions on the Iron Gall Ink Website (May 2007): https://irongallink.org/images/file/pdf%209_preparation%20of%20calcium%20phytate_ok.pdf. Calcium carbonate powder has been added to phytic acid solution and mixed with cold deionized water. The pH is being gradually increased adding 3% ammonium hydroxide. In this image the pH reads as 5.72, and the solution is becoming cloudy. Image taken April 2024 by Jenn... |
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