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A ferric chloride solution is a test for phenols, as they form intensely colored complexes with Fe3 + (often dark blue). The actual structure of these complexes is debated, 15 but may be of the general form in Figure 6.69.
Step 1: Dissolve the sample in water plus ethanol. Step 2: Add drops of a dilute solution of ferric chloride (FeCl 3). Step 3: If the sample turns to red, green, purple, or blue colouration then it indicates the presence of phenols.
A colorless to light brown aqueous solution that has a faint hydrochloric acid odor. Highly corrosive to most metals and probably corrosive to tissue. Noncombustible. Used in sewage treatment and water purification.
Solutions of green iron (II) chloride slowly oxidize in air or on heating to form iron (III) chloride, provided there are excess chloride ions in solution. This is a somewhat reversible reaction, as the addition of more iron to ferric chloride solutions reverts it back to iron (II) chloride.
Ferric chloride can be prepared by dissolving hematite in hydrochloric acid: FeX2OX3 +6HCl 2FeClX3 +3HX2O (1) (1) F e X 2 O X 3 + 6 H C l 2 F e C l X 3 + 3 H X 2 O. But the resulting ferric chloride will be exposed from its formation to water.
Ferric chloride is a valuable tool in wastewater treatment. It is highly effective at removing a wide range of pollutants from the water, including suspended solids, organic matter, heavy metals, and phosphates. This makes it a preferred choice among many wastewater treatment facilities.
It is noncombustible. When wet it is corrosive to aluminum and most metals. Pick up and remove spilled solid before adding water. It is used to treat sewage, industrial waste, to purify water, as an etching agent for engraving circuit boards, and in the manufacture of other chemicals.
Ferric chloride, solution appears as a colorless to light brown aqueous solution that has a faint hydrochloric acid odor. Highly corrosive to most metals and probably corrosive to tissue. Noncombustible. Used in sewage treatment and water purification. CAMEO Chemicals. Iron trichloride is an iron coordination entity.
Solutions are corrosive. Usually available as a dark orange-brown liquid containing approximately 30% FeCl 3 by weight in water. May also be obtained as dark crystals with the formula FeCl 3 · 6H 2 O. Use: Used in coagulation. Purity Requirements:
Ferric chloride is generally prepared from ferrous chloride through the action of chloride or nitric acid. It is used to make many other ferric compounds and as a chlorinating agent for silver, copper, and some organic compounds. Treating a solution of Fe 3+ with the complex…