Copper Picramate

Copper Azidodithiocarbonate A636-R Copper Nitroaminoguanidine A212-R Copper Picramate A242-L Corallin. See Aurine A508-R Critical Mass. See under Atomic Energy A501-L... 

Copper Picramate, Cu(C4H,N,0, ), yel grn amor ppt insol in w ale and sol in acids and NH, detonated mildly on heating. It was prepd Girard by treating an aq soln of Amm picramate with a soln of a Cu salt... 

Copper Picramates See Vol 1, p A242-L under Amino-phenols and Derivatives... 

The compound can be prepared from 2,4,6-trinitrophenol (picric acid [88-89-1]) by reduction with sodium hydrosulfide (163), with ammonia —hydrogen sulfide followed by acetic acid neutralization of the ammonium salt (164), with ethanolic hydrazine and copper (165), or electrolyticaHy with vanadium sulfate in alcoholic sulfuric acid (159). Heating 4,6-dinitro-2-benzamidophenol in concentrated HQ. at 140°C also yields picramic acid (166). 

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. 

Cobalt(II) picramate, 3460 Copper(I) chloroacetylide, 1354 Diacetatotetraaquocobalt, 1780 Dicopper(I) ketenide, 0621... 

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... 

Cobalt(II) picramate, 3460 Copper(II) 3,5-dinitroanthranilate, 3627 Copper(II) picrate, 3432... 

Bis[l,5-bis(4-methylphenyl)-l,3-pentaazadienato-N3,N5]-(T-4) cobalt, 3862 Cadmium propionate, 2412 Cobalt(II) picramate, 3454 Copper(I) chloroacetylide, 1350 Diacetatotetraaquocobalt, 1774 Dicopper(I) ketenide, 0618... 

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... 

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