Lead Picramate

Diazotization of picramic acid yields -> Diazodinitrophenol (DDNP). Lead picramate and DDNP are -> Initiating Explosives. 

C6H2(N02)30H (NH SaQs C02+HN03+HCN When mildly reduced, for example with Na sulfide or hydrosulfite or with ferrous sulfate, PA is converted into picramic acid, a very useful intermediate in the dyestuffs industry and a starting material for the preparation of Diazo-dinitrophenol, a primary expl (see Vol 2, B59-L). Stronger reduction may lead to the formation of triamino phenol... 

Cl Sulphur Black 1, which is produced from the relatively simple intermediate 2,4-dinitrophenol and aqueous sodium polysulphide. A similar product (Cl Sulphur Black 2) is obtained from a mixture of 2,4-dinitrophenol and either picric acid (6.148 X = N02) or picramic acid (6.148 X = NH2). A black dye possessing superior fastness to chlorine when on the fibre (Cl Sulphur Black 11) can be made from the naphthalene intermediate 6.149 by heating it in a solution of sodium polysulphide in butanol. An equivalent reaction using the carbazole intermediate 6.150 gives rise to the reddish blue Cl Vat Blue 43 (Hydron blue). This important compound, which also possesses superior fastness properties, is classified as a sulphurised vat dye because it is normally applied from an alkaline sodium dithionite bath. Interestingly, inclusion of copper(II) sulphate in the sulphurisation of intermediate 6.150 leads to the formation of the bluish black Cl Sulphur Black 4. 

Trimethyldecahydroquinolinium picrate, 3765 Ammonium picrate, 2322 Calcium picrate, 3430 Cobalt(II) picramate, 3460 Copper(II) picrate, 3432 Lanthanum picrate, 3741 Lead(II) picrate, 3436 Manganese picrate hydroxide, 3742 Mercury(II) picrate, 3433 S-7-Methylnonylthiouronium picrate, 3737 Nickel picrate, 3435 Potassium picrate, 2085 Sodium picrate, 2086 Zinc picrate, 3437... 

A plot of logio Ed against 1/1) is almost rectilinear. Therefore, Ea may be determined by equating (EJ4.57) with the slope of the straight line. Equation 3.3 holds good for a number of explosives such as lead azide, cuprous azide, mercury fulminate, lead styphnate, barium styphnate and metal picrates and metal picramates etc. [25-30]. Thus, it appears that the determination of Ea gives a more complete picture concerning the heat sensitivity of explosives than ED or ET. 

Ammonium picrate, 2315 Calcium picrate, 3424 Cobalt(II) picramate, 3454 Copper(II) picrate, 3426 Lanthanum picrate, 3735 Lead(II) picrate, 3430 Manganese picrate hydroxide, 3736 Mercury(II) picrate, 3427 5-7-Methylnonylthiouronium picrate, 3731 Nickel picrate, 3429... 

LEAD-TNP, BARIUM STYPHANTE, LEAD STYPHNATE, AMMONIUM PICRAMATE, AMMONIUM PICRATE, LEAD PICRATE, SODIUM PICRAMATE... 

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