Dictionary,Defintion,Meaning,What is Ferromagnetic, Flame Test, Ferromagnetic, Ferromagnetis, Ferrosilion, Ferrous ammonium sulphate

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Home >> Inorganic Chemistry Dictionary >> Ferromagnetic - Flame Test

Your Ad Here	Ferromagnetic Ferromagnetic substances show permanent magnetism even on removal of electric filed. Once these materials are magnetised, they retain their magnetism permanently. Ferromagnetism Magnetic behaviour which does not-follow the Curie-Weiss law and is field strength dependent. Has large positive magnetic susceptibility (x) and the magnetic moment (M) does not fall to zero when the applied magnetic field is removed.
Ferromolybdenum Alloy of Fe and Mo (60-65%) used to introduce Mo into alloy steels and special cast irons. Obtained by reducing MoS₂ with Fe and C in an electric furnace. Ferrosilicon Iron silicide, FeSi, obtained by reducing a silicon-containing iron-ore in an electric furnace; used in the manufacture of steels and to reduce the amount or iron carbide in cast iron.
Ferrous ammonium sulphate Fe(SO₄).(NH)2SO₄.6H₂O, light-green, water-soluble crystals; used in medicine, analytical chemistry, and metallurgy. Also known as iron ammonium sulfate; Mohr’s salt. Ferrous arsenate Fe₃(AsO₄)3.6H₂O, water-in-soluble, toxic green amorphous powder, soluble in acids; used in medicine and as an insecticide. Also known as iron arsenate.	Your Ad Here
Ferrous carbonate FeCO₃, green rhombohedral crystals that are soluble in carbonated water and decompose when heated; used in medicine. Ferrous chloride Fecl₂.4H₂O, green, monoclinic crystals, soluble in water; used as a mordant in dyeing, for sewage treatment, in metallurgy, and in pharmaceutical preparations. Also known as iron chloride; iron dichloride.
Your Ad Here	Ferrous hydroxide Fe(OH)₂, a white, water-in-soluble, gelatinous solid that turns reddish-brown as it oxidizes to ferric hydroxide. Ferrous oxide FeO, a black powder, soluble in water, melting at 1419°C. Also known as black iron oxide; iron monoxide. Ferrous sulphide FeS, black crystals, insoluble in water, soluble in acids, melting point 11950; used to generate hydrogen sulphide in ceramics manufacture. Also known as iron sulfide.

Filter paper
A porous paper which is used to separate suspended solids from liquids; leaves no ash after it has been burnt. Several of filters differing in pore dimensions are manufacture.

Flame emission spectroscopy
Emission spectroscopy where the emitting atom is present in a flame.

Flame test
A preliminary test in qualitative analysis in which a small sample of a chemical is introduced into a non-luminous Bunsen flame on a clean platinum wire. The flame vaporizes part of the sample and excites some of the atoms, thus the observation of certain colours in the flame indicates the presence of these elements. The same principles are applied in the modern instrumental method of spectrographic analysis.

Flash back
Refers to the flame speed of the combustion mixture in the burner. To maintain a stationary flame, it is essential to balance the flame speed of the combustion mixture and the velocity of the mixture in the burner tube.

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