Iron nitrate, acidity

While concentrated nitric acid passivates steel, the phenomenon is too unreliable to permit cast irons to be used with confidence, even for strong nitric acids. The evidence available in relation to mixed nitrating acids. 

Nitration of 9-methylpyrido[2,3-(t][l,5]benzoxazepin-5(6//)-one with nitronium tetrafluoro-borate gives exclusively the 7-nitro derivative 3, which is reduced to the amine 4 with iron/acetic acid.41... 

Major constituents (greater than 5 mg/L) Minor constituents (O.Ol-lO.Omg/L) Selected trace constituents (less than 0.1 mg/L) Bicarbonate, calcium, carbonic acid, chloride, magnesium, silicon, sodium, sulfate Boron, carbonate, fluoride, iron, nitrate, potassium, strontium Aluminum, arsenic, barium, bromide, cadmium, chromium, cobalt, copper, gold, iodide, lead, Uthium, manganese, molybdenum, nickel, phosphate, radium, selenium, silver, tin, titanium, uranium, vanadium, zinc, zirconium... 

Ferric Nitrate (Iron Nitrate), Fe(N0s)3.9H30 mw 404.02, It viol monocl delq crysts, mp 47°, dec at 100° v sol in w ale. Can be prepd by the action of coned nitric acid on scrap iron or on iron oxide, followed by crystn. It is a strong oxidizing agent and is considered to be dangerous as a fire hazard. Used in analytical chemistry... 

Plant for mononitration consists of two cast iron pre-nitrators, each having a capacity of 0.5 m3 and a main cast iron nitrator of 15 m3 capacity. Toluene and acid are run into the pre-nitrators, a toluene to acid ratio of 1 2.5 being maintained. The mixture is transferred to the main nitrator through an overflow in the quantity necessary to fill the nitrator (10-12 m3). A temperature of 34-40°C is maintained in both nitrators by means of a cooling coil. 

The acid liquid DNT is metered and fed into a cast iron nitrator of 12 m3 capacity by means of compressed air. Then acid T3 of the composition ... 

The phenoldisulphonic acid thus prepared is then nitrated in conventional iron nitrators with a jacket and a stirrer. 1000-2000 kg of sulphophenol may be nitrated at a time. From 100 parts of phenol 205 parts of picric acid can be obtained. 

The efficiency and selectivity of a supported metal catalyst is closely related to the dispersion and particle size of the metal component and to the nature of the interaction between the metal and the support. For a particular metal, catalytic activity may be varied by changing the metal dispersion and the support thus, the method of synthesis and any pre-treatment of the catalyst is important in the overall process of catalyst evaluation. Supported metal catalysts have traditionally been prepared by impregnation techniques that involve treatment of a support with an aqueous solution of a metal salt followed by calcination (4). In the Fe/ZSM-5 system, the decomposition of the iron nitrate during calcination produces a-Fe2(>3 of relatively large crystallite size (>100 X). This study was initiated in an attempt to produce highly-dispersed, thermally stable supported metal catalysts that are effective for synthesis gas conversion. The carbonyl Fe3(CO) was used as the source of iron the supports used were the acidic zeolites ZSM-5 and mordenite and the non-acidic, larger pore zeolite, 13X. 

SYNS FERRIC NITRATE (DOT) IRON NITRATE IRON (III) NITRATE,. ANHYDROUS IRON TRINITRATE NITRIC ACID, IRON(3+) SALT... 

IRON NITRATE IRON TRINTTR-tTE NITRIC ACID, IRON(3+) SALT... 

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