DADNBU| melting point 70 °C |
boiling point 150 °C decomposes |
DADNBU | molecular mass 262.21 g/mol |
density ? g/mL |
| table key | sensitivity very high |
chemical formula (NO3)CH2CHN3CHN3CH2(NO3) |
explosive velocity ? m/s |
estimated cost $?.00/g |
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The name of this explosive is 2,3-diazido-1,4-dinitratobutane. All I know about this compound, other than how to synthesize it, is that it is very sensitive to friction and shock. It has been proposed as a military propellant.
| CHEMICALS | APPARATUS |
| acetic anhydride | Erlenmeyer flask |
| 2,3-diazido-1,4-butanediol | graduated cylinder |
| ethyl alcohol | dropper pipet |
| nitric acid | magnetic stirrer |
| thermometer |
Prepare a 1 to 1 molar solution of nitrating acid by slowly mixing 12.3 mL of acetic anhydride and 5.5 mL of 100% nitric acid in a small Erlenmeyer flask. Cool the solution to 0-5 °C in a salt-ice bath. Slowly add 2.58 g of 2,3-diazido-1,4-butanediol drop by drop with a pipet to the cool acid. Add the diol at such a rate that the reaction temperature stays between 5-15 °C. Stir the mixture during the addition and for 30 minutes afterwards with a magnetic stirrer or by swirling the flask. Several recrystallizations from ethyl alcohol give a fairly pure product with an approximate yield of 40%. You will need a graduated cylinder for measuring liquids and a thermometer to monitor the temperature.
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