Explosive complexes
View Patent ↗Lead-free primary explosives of the formula [M II (A) R (B X ) S ](C Y ) T , where A is 1,5-diaminotetrazole, and syntheses thereof are described. Substantially stoichiometric equivalents of the reactants lead to high yields of pure compositions thereby avoiding dangerous purification steps.
1. A process for preparing a compound according to the reaction
[M II (H 2 O) 6 ]D 2 +R(A)→[M II (A) R (H 2 O) 6-R (D) X ](D) 2-X
M is selected from the group consisting of
(1) cobalt,
(2) copper,
(3) iron,
(4) manganese,
(5) nickel, and
(6) zinc;
A is DAT;
D is selected from the group consisting of
(1) ClO 4 − ,
(2) NO 3 − , and
(3) Cl − ;
R is 5 or 6; and
X is 0 or 1; and
R+X=6
as follows:
(1) mixing a chosen quantity of a metal salt [M II (H 2 O) 6 ]D 2 and R molar equivalents of A in a suitable solvent, thereby forming a solution;
(2) heating said solution at a time and temperature suitable for the color of said solution to change;
(3) cooling said solution to room temperature to form a precipitate of the compound; and
(4) filtering the precipitate of the compound.
2. The process of claim 1 wherein R is 6.
3. The process of claim 1 wherein M is iron.
4. The process of claim 1 wherein R is 5.
5. The process of claim 1 wherein said suitable solvent is an ethanolic solvent.
6. The process of claim 1 wherein said solution is heated in stop step 2 to reflux for between 2 to 3 hours or until clear and colorless.
7. The process of claim 1 wherein said solution is cooled in step 2 to around 40° C. with gentle stirring and then cooled to room temperature undisturbed.