Citric acid digested at a temperature below 40° C. with concentrated sulphuric acid gives off carbon monoxide and forms acetone dicarboxylic acid.
This knowledge, joined to what he had gathered by historical reading of equally unusual extent, he carefully digested and gave to the world in his Biographisch-literarisches Handworterbuch zur Geschichte der exacten Wissenschaften, containing notices of the lives and labours of mathematicians, astronomers, physicists, and chemists, of all peoples and all ages.
The food must be digested, absorbed and excreted with great rapidity.
- Diagram conveying the digested food-products all over of the circulatory the body, and the excretory products to the apparatus in the annephridia, and doubtless it serves at times to tenor body-region of assist in the extension and retraction of parts a Metanemertine.
This substance is transformed into hexachlor-R-pentene oxycarboxylic acid (3) when digested with water; and chromic acid oxidizes this substance to hexachlor-R-pentene (4).