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TM 31-210
Improvised Munitions Handbook


Section I

No. 20

PREPARATION OF LEAD PICRATE

Lead picrate is used as a primary explosive 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:
Litharge (lead monoxide)
Section I, No, 18 or plumbing supplies
Picric acid Section I, No. 21
Wood alcohol (methanol) Paint removers; some antifreezes
Wooden or plastic rod
Dish or saucer (china or glass)
Teaspoon
Improvised Scale Section VII, No. 8
Containers
Flat pan
Heat source (optional)
Water (optional)

 

PROCEDURE:
1. Weigh 2 grams each of picric acid and lead monoxide. Place each in a separate container.
2. Place 2 teaspoons (10 milliliters) of the alcohol in a dish. Add the picric acid to the alcohol and stir with the wooden or plastic rod.

3. Add the lead monoxide to the mixture while stirring.

 

CAUTION: At this point the solution is a primary explosive. Keep away from flame.

 

4. Continue stirring the mixture until the alcohol has evaporated. The mixture will suddenly thicken.
5. Stir mixture occasionally (to stop lumps from forming) until a powder is formed. A few lumps will remain.

 

CAUTION: Be very careful of dry material forming on the inside of the container.

 

6. Spread this powdered mixture, the lead picrate, in a flat pan to air dry.

NOTE: If possible, dry the mixture in a hot, not boiling, water bath for a period of 2 hours.

 


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