Iron chloride (6-water)

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Iron chloride 6-water

Synonyms: Iron trichloride, iron chloride, iron chloride, iron III chloride hexahydrate, iron chloride hexahydrate, Iron III chloride 6-water (Iron chloride, iron trichloride) FeCl3·6H20 — soft crystalline mass or pieces of yellow-brown color.

Ferric chloride — medium salt of trivalent iron and hydrochloric acid. This is chemical raw materials is a soft crystalline mass of rusty-brownish black color. Boiling temperature is 319°C, melting point was 309°C. Ferric chloride is formed by heating iron with chlorine. It to also as a byproduct in the production of titanium chloride TiCl4 and aluminum chloride AlCl3. Another method of obtaining ferric chloride – hot chlorination or oxidation of FeCl2 solution with subsequent evaporation of the solution FeCl3.

The scope of application of ferric chloride is quite broad. It is used as a coagulant for water purification, as catalyst in organic synthesis, as a mordant in the dyeing process, fabrics, as well as for the preparation of iron pigments and other iron salts. Another solution ferric chloride used for etching printed circuit boards.

Wide enough distribution of ferric chloride was obtained as a coagulant in the process treatment of industrial and municipal wastewater. Compared to other coagulants, particularly aluminium sulphate, this chemical product has an important advantage – chloride of iron endowed with high deposition rate a variety of impurities. As a result of the hydrolysis of ferric chloride forms a slightly soluble iron hydroxide. In the process of its formation are captured various organic and inorganic impurities, forming a loose flakes, which are easily removed from the treated effluent. Such flakes, a density of 1001-1100 g/l and with a size of 0,5–3,0 mm have a rather large surface with excellent sorption activity. In the process of education in the structure includes suspended matter (large microorganisms, cells plankton, silt, plant remains), colloidal particles, and also of the ion contaminants associated on the surface of these particles. With this product process of sludge settling occurs much faster and deeper. Another the advantage of ferric chloride is its positive influence on biochemical the decomposition of the sludge. For the quality of wastewater treatment per cubic meter requires 30 g of ferric chloride. Water purification ferric chloride reduces the content of soluble impurities up to 25 per cent, and insoluble to 95 percent. In the process of the purification of industrial and municipal waters toxic compounds and microorganisms get destroyed with sodium hypochlorite.

Thanks to its bright pronounced acid properties, ferric chloride is used as catalyst in processes of organic synthesis, when obtaining heat-resistant resins and oxidation bitumen. Iron chloride is a vigorous chlorinating agent, so it applies for selective extraction of some components of ores. In particular, this chemical raw materials required in the aromatic hydrocarbons to the reaction electrophilic substitution. It is also well known the use of aqueous solutions of ferric chloride. Having a relatively soft etching properties, they used in electronic industry and instrument-making industry for etching printed circuit boards, metal parts and copper foil. Chlorine is used iron and in construction. It is used as an additive to Portland cement for accelerate the process of setting. Additive ferric chloride significantly increases the strength of concrete.

Iron III chloride the hexahydrate is used:

• with it lightens natural water treatment systems;

• removes oil from the effluent fat and oil plants;

• it is used in wastewater treatment of leather and fur enterprises from the chromium compounds;

• to mitigate drinking water;

• and also in organochlorine synthesis

• for etching of printed circuit boards in the electronic industry

• instrumentation,

• as a starting substance for produce other compounds of Fe,

• as a component toning solutions photos

• as a mordant in dyeing fabrics

• in industrial cleaning water

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