TM 31-210
Improvised Munitions Handbook
| Section I |
No. 19 |
|
DDNP |
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| DDNP is a primary explosive used in the fabrication of detonators (Section VI, No. 13). It is to be used with a booster explosive such as picric acid (Section I, No. 21) or RDX (Section I, No. 15). | |
| MATERIALS REQUIRED: | SOURCES: |
| Picric acid | Section I, No. 21 |
| Flowers of sulfur | |
| Lye (sodium hydroxide) | |
| Sulfuric acid, diluted | Motor vehicle batteries |
| Potassium or sodium nitrate | Section I, No. 15 |
| Water | |
| 2 glass cups, heat resistant, (Pyrex) | |
| Stirring rod (glass or wood) | |
| Improvised scale | Section VII, No. 8 |
| Paper towels | |
| Teaspoon | |
| Tablespoon | |
| Eyedropper | |
| Heat source | |
| Containers | |
| Tape |
| PROCEDURE: | |
| 1. In one of the glass cups, mix 1/2 gram of lye with 2 tablespoons (30 milliliters) of warm water. |
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| 2. Dissolve 1 teaspoon (3 grams) of picric acid in the water-lye solution. Store until ready for step 5. |
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| 3. Place 1/4 teaspoon (1 milliliter) of water
in the other glass cup. Add 1/2 teaspoon (2-1/2 grams) of sulfur and 1/3
teaspoon (2-1/2 grams) of lye to the water.
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| 4. Boil solution over heat source until color turns dark
red. Remove and allow solution to cool. |
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| 5. In three portions, add this sulfur-lye solution to the
picric acid-lye solution (Step 2); stir while pouring. Allow mixture to
cool. |
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| 6. Filter the mixture through paper towel into a container. Small red particles will collect the paper. Discard the liquid in the container. |
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| 7. Dissolve the red particles in 1/4 cup (60 milliliters) of boiling water. |
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| 8. Remove and filter the mixture through a paper towel as in step 6. Discard the particles left on the paper. | |
| 9. Using an eyedropper, slowly add the sulfuric acid to the filtered solution until it turns orange-brown. |
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| 10. Add 1/2 teaspoon (2-1/2 grams) more of sulfuric acid to the solution. Allow the solution to cool to room temperature. | |
| 11. In a separate container, dissolve 1/4 teaspoon (1,8 grams) of potassium or sodium nitrate in 1/3 cup (80 milliliters) of water. | |
| 12. Add this solution in one portion, while stirring, to the orange-brown solution. Allow the mixture to stand for 10 minutes. The mixture will turn light brown. | |
| CAUTION: At this point the mixture is a primary explosive. Keep away from flame. |
| 13. Filter the mixture through a paper towel. Wash the particles left on the paper with 4 teaspoons (20 milliliters) of water. |
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| 14. Allow the particles to dry (approx. 16 hours). | |
| CAUTION: Explosive is shock and flame sensitive. Store explosive in a capped container. |
| NOTE: The drying time can be reduced to 2 hours if a hot (not boiling) water bath is used. See Section I, No. 16. |
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