Thiourea nitrate

Thiourea nitrate was prepared by Palamo Coll [62a] by the action of dilute nitric acid (d = 1.33) on thiourea at 5-10°C. The same author prepared nitrothiourea by the action of thiourea nitrate with acetic anhydride (Vol. III). 

Its decomposition temperature on a hot copper plate (induction period r = ca. 0.5 sec) is 410°C, as determined by T. Urbanski and Kurcewicz [62b]. 

The same authors found that thiourea nitrate is a weak explosive giving a lead block expansion of 150 cm3. 

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NH2)2CS HNO3 (c). Matignon1 measured the heat of solution of thiourea nitrate. ... 

Hydrazine nitrace Fluoiine nitrate Mcthylamine nitrate Tetramethylammonium nitrate Guanidine nitrate Properties Manufacture Urea nitrate Thiourea nitrate Ethylene diamine dinitritc Hexamethylenetetramine diniirate Nitrates of ethanolamine nitric esters Ethanolamine nitric ester nitrate (ethanolamine dinitrate) Diethanolamine dinitric ester nitrate (diethanolamine trinitrate) Trictham amine trimtnc ester nitrate (triethanolamine tetranitrate) Oxontum nitrate Literature... 

In comparing the thiourea-nitrate inclusion compounds with the thiourea-bicarbonate inclusion compounds, it is noted that the oxygen atoms of the NOJ ion, unlike the HCOJ ion, can only form acceptor hydrogen bonds with other potential donors. Therefore, the construction of a two- or three-dimensional host framework requires a higher thiourea/nitrate molar ratio, with or without cocrystallized water molecules, as is the case in complexes 2.5 and 2.6. In the 1 1 complexes 2.7,2.8, and 2.9 only a parallel arrangement of separate ribbons can be constructed from the thiourea and nitrate building blocks. 

Alkylphenols, ammonia, asbestos, chlorinated paraffins, 4-chloroaniline, cyanide, detergents, di- -butyl phthalate, polyaromatic hydrocarbons (PAHs e.g. anthracene, benzopyrene, methylcholanthrene, /i-naphthoflavone), nitrate, nitrite, petroleum oil, phenol, pentachlorophenol, 4-nitrophenol, dinitro-o-cresol, polychlorinated biphenyls (PCBs especially coplanar), polychlorinated dioxins, polybrominated naphthalenes, /i-sitosterol, sulfide, thiourea, urea, acid water, coal dust... 

Chlorophenyl isothiocyanate has also been prepared by treating an alcoholic solution of sym-di-/)-chlorophenyl thiourea with iodine/ from ammonium -chloroplienyldithiocarbamate and lead nitrate/ (p. 72), and from the action of thiophosgene with /)-chloroaniline. ... 

Phenyl-ethyl isothiocyanate. CgHj,(C.2H4)N C S, has been found in the oils of reseda root, nasturtium, and some varieties of Brassica. It is an oil of powerful odour, yielding a thiourea, melting at 137°. The latter body, when treated with silver nitrate and baryta water, yields phenyl-ethyl-urea, melting at 111° to 112°. 

Besides Fe-, other reducing agents that may be used in conjunction with H2O2 are aliphatic amines, Na2S203 thiourea, ascorbic acid, glyoxal, sulfuric acid, NaHSOs, sodium nitrite, ferric nitrate, peroxidase, AgNOs, tartaric acid, hydroxylamine, ethylene sulfate, sodium phosphite, formic acid, ferrous ammonium sulphate, acetic acid, ferrous sulphate, and HNO2, etc,... 

Remove unreacted N-acetyl homocysteine thiolactone and reaction by-products by gel filtration or dialysis against lOmM sodium phosphate, 0.15M NaCl, lOmM EDTA, pH 7.2. Other buffers suitable for individual protein stability may be used as desired. For the silver nitrate-containing reaction, removal of the silver-thiourea complex may be done by adsorption onto Dowex 50, and the protein subsequently eluted from the resin by 1M thiourea. Removal of the thiourea then may be done by gel filtration or dialysis. 

One of the earliest diazo components of this type to be introduced was 2-amino-5-nitrothiazole (4.81), prepared by condensation of thiourea with chloroacetaldehyde and nitration of the resultant 2-aminothiazole (Scheme 4.32). This component yields bright dischargeable blues, such as Cl Disperse Blue 82 (4.82), which have outstanding build-up, very high extinction coefficients and good fastness to burnt gas fumes. Use of diazo component 4.81 with coupling component 4.83 yields a greenish blue dye. 

Tetrakis(thiourea)manganese(II) perchlorate, 1785 Triamminenitratoplatinum(II) nitrate, 4582 Triamminetrinitrocobalt(III), 4204... 

A change in ionic adsorption in the presence of organic molecules was also observed by Parsons and Zobel. They found that in the presence of acetanilide in the inner layer, the surface concentration of specifically adsorbed phosphate ions decreases. In another work it was suggested that specific adsorption of nitrate ions is markedly reduced in the presence of thiourea in the solution. Thiourea alters the properties of the mercury electrode, affecting even the adsorption of iodides. ... 

The procedure given here is essentially that described previously by the submitters. -Chlorophenyl isothiocyanate has been prepared from sym-di-p-chloiophenyl thiourea with iodine in alcoholic solution, from ammonium p-chlorophenyldithio-carbamate and lead nitrate [cf. also Org. Syntheses, Coll. Vol. 1 447 (1932)], by the action of thiophosgene on />-chloroaniline and from -chloroaniline with thiocarbonyl tetrachloride in the presence of stannous chloride. ... 

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