 | Henry Draper - 1868 - 534 Seiten
...solution until it ceases to have an alkaline reaction. On cooling to zero, the xanthate of potassa crystallizes ; it is to be dried in vacuo. It is soluble...litmus paper. At 75° it is decomposed into alcohol and bisulphide of carbon. It is also decomposed by the action of the air. KAKODYLE (CtIf6As=Jfd) is a compound... | |
 | Victor von Richter - 1885 - 782 Seiten
...172, 74.). It is synthetically prepared by the action of POC13 upon a mixture of urea and oxalic acid. It is soluble in water and alcohol, but not in ether, and crystallizes in needles or prisms. Under peculiar conditions it crystallizes with one molecule of water,... | |
 | John Humphrey - 1905 - 520 Seiten
...Convallamarin is amorphous and occurs as a white powder, which tastes bitter at first but afterwards sweetish ; it is soluble in water and alcohol, but not in ether, and is converted on hydrolysis into convallamaretin and sugar. Convallarin is crystalline, has an acrid... | |
 | Henry Corbin Fuller - 1920 - 1100 Seiten
...is not present in the root. It forms fine, hygroscopic needles which are bitter and cause sneezing. It is soluble in water and alcohol, but not in ether, and hence can be easily separated from helleborin. With concentrated sulphuric acid a golden-yellow to... | |
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It is soluble in water and alcohol, but not in ether; and from it xanthic acid may be procured by the action of dilute hydrochloric acid. 