Chime 3D Needed
C4H8N8O8

Percent Composition by Number:
Carbon: 14.3%
Hydrogen: 28.6%
Nitrogen: 28.6%
Oxygen: 28.6%

Percent Composition by Mass:
Carbon: 16.2%
Hydrogen: 2.70%
Nitrogen: 37.8%
Oxygen: 43.2%

Type of Bonding:
HMX is held together by covalent bonds. Several small molecules are bonded to the corners of a hexagonal shaped center.

Production:
HMX does not occur in nature and must be made in a very expensive and difficult process. The process is outlined in the US Army's Military Explosives manual as such: "To manufacture HMX, a solution of 785 parts glacial acetic acid, 13 parts acetic anhydride, and 17 parts paraformaldehyde is maintained at a temperature of 44oC ± 1oC. All part measurements in this discussion are by weight. The solution is held at that temperature throughout the subsequent steps of the process. Two more solutions are prepared. One consists of 101 parts hexamine and 165 parts acetic acid. The other is prepared by dissolving 840 parts ammonium nitrate in 900 parts of 99 percent or stronger nitric acid. Over a 15 minute period with constant stirring, the hexamine-acetic acid solution, 180 parts of the nitric acid-ammonium nitrate solution, and 320 parts acetic anhydride are added simultaneously, continuously, and equivalently. The mixture is aged for 15 minutes. In the second stage of the reaction, 320 parts of acetic anhydride and 271 parts of the nitric acid-ammonium nitrate solution are added proportionately, then 160 parts of acetic anhydride are added in bulk. The mixture is allowed to age for 60 minutes. Then 350 parts hot water are added and the solution is refluxed for 30 minutes. After cooling to 20oC by adding ice, the water insoluble precipitate is collected and washed with three portions of cold water. The yield of 200 parts HMX is 95 percent of the theoretical and the purity is higher than 90 percent."

Chime 3D Needed
C4H8N8O8

Percent Composition by Number:
Carbon: 14.3%
Hydrogen: 28.6%
Nitrogen: 28.6%
Oxygen: 28.6%

Percent Composition by Mass:
Carbon: 16.2%
Hydrogen: 2.70%
Nitrogen: 37.8%
Oxygen: 43.2%

Type of Bonding:
HMX is held together by covalent bonds. Several small molecules are bonded to the corners of a hexagonal shaped center.

Production:
HMX does not occur in nature and must be made in a very expensive and difficult process. The process is outlined in the US Army's Military Explosives manual as such: "To manufacture HMX, a solution of 785 parts glacial acetic acid, 13 parts acetic anhydride, and 17 parts paraformaldehyde is maintained at a temperature of 44oC ± 1oC. All part measurements in this discussion are by weight. The solution is held at that temperature throughout the subsequent steps of the process. Two more solutions are prepared. One consists of 101 parts hexamine and 165 parts acetic acid. The other is prepared by dissolving 840 parts ammonium nitrate in 900 parts of 99 percent or stronger nitric acid. Over a 15 minute period with constant stirring, the hexamine-acetic acid solution, 180 parts of the nitric acid-ammonium nitrate solution, and 320 parts acetic anhydride are added simultaneously, continuously, and equivalently. The mixture is aged for 15 minutes. In the second stage of the reaction, 320 parts of acetic anhydride and 271 parts of the nitric acid-ammonium nitrate solution are added proportionately, then 160 parts of acetic anhydride are added in bulk. The mixture is allowed to age for 60 minutes. Then 350 parts hot water are added and the solution is refluxed for 30 minutes. After cooling to 20oC by adding ice, the water insoluble precipitate is collected and washed with three portions of cold water. The yield of 200 parts HMX is 95 percent of the theoretical and the purity is higher than 90 percent."