Search results
Results from the WOW.Com Content Network
Molecular formaldehyde. A colorless gas with a characteristic pungent, irritating odor. It is stable at about 150 °C, but it polymerizes when condensed to a liquid. 1,3,5-Trioxane, with the formula (CH 2 O) 3. It is a white solid that dissolves without degradation in organic solvents. It is a trimer of molecular formaldehyde.
1,3,5-Trioxane, sometimes also called trioxane or trioxin, is a chemical compound with molecular formula C 3 H 6 O 3. It is a white, highly water-soluble solid with a chloroform -like odor. It is a stable cyclic trimer of formaldehyde , and one of the three trioxane isomers; its molecular backbone consists of a six-membered ring with three ...
This heterocycle is the cyclic trimer of the otherwise unstable species thioformaldehyde. It consists of a six-membered ring with alternating methylene bridges and thioether groups. It is prepared by treatment of formaldehyde with hydrogen sulfide. [2] Trithiane is a building block molecule in organic synthesis, being a masked source of ...
Paraformaldehyde can be depolymerized to formaldehyde gas by dry heating [2] and to formaldehyde solution by water in the presence of a base, an acid or heat. The high purity formaldehyde solutions obtained in this way are used as a fixative for microscopy and histology. The resulting formaldehyde gas from dry heating paraformaldehyde is flammable.
Thioformaldehyde is the organosulfur compound with the formula CH 2 S. It is the simplest thioaldehyde.This compound is not observed in the condensed state (solid or liquid) because it oligomerizes to 1,3,5-trithiane, which is a stable colorless compound with the same empirical formula.
The three isomers are: 1,2,3-trioxane, a hypothetical compound that is the parent structure of the molozonides [1]; 1,2,4-trioxane, a hypothetical compound whose skeleton occurs as a structural component of some antimalarial agents (artemisinin and similar drugs) [2]
In chemistry, a trimer (/ ˈ t r aɪ m ər /; from Ancient Greek tri- 'three' and -mer 'parts') is a molecule or polyatomic anion formed by combination or association of three molecules or ions of the same substance. In technical jargon, a trimer is a kind of oligomer derived from three identical precursors often in competition with polymerization.
Paraldehyde is the cyclic trimer of acetaldehyde molecules. [2] Formally, it is a derivative of 1,3,5-trioxane, with a methyl group substituted for a hydrogen atom at each carbon. The corresponding tetramer is metaldehyde. A colourless liquid, it is sparingly soluble in water and highly soluble in ethanol.