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p-Anisidine (or para-anisidine) is an organic compound with the formula CH 3 OC 6 H 4 NH 2. A white solid, commercial samples can appear grey-brown owing to air oxidation. It is one of three isomers of anisidine, methoxy-containing anilines. It is prepared by reduction of 4-nitroanisole. [8]
Boiling point (°C) K b (°C⋅kg/mol) Freezing point (°C) K f (°C⋅kg/mol) Data source; Aniline: 184.3 3.69 –5.96 –5.87 K b & K f [1] Lauric acid: 298.9 44 –3.9
m-Anisidine is an organic compound with the formula CH 3 OC 6 H 4 NH 2. A clear light yellow or amber color liquid, commercial samples can appear brown owing to air oxidation. A clear light yellow or amber color liquid, commercial samples can appear brown owing to air oxidation.
Iron(II,III) oxide, or black iron oxide, is the chemical compound with formula Fe 3 O 4. It occurs in nature as the mineral magnetite . It is one of a number of iron oxides , the others being iron(II) oxide (FeO), which is rare, and iron(III) oxide (Fe 2 O 3 ) which also occurs naturally as the mineral hematite .
Iron(III) oxide is a product of the oxidation of iron. It can be prepared in the laboratory by electrolyzing a solution of sodium bicarbonate, an inert electrolyte, with an iron anode: 4 Fe + 3 O 2 + 2 H 2 O → 4 FeO(OH) The resulting hydrated iron(III) oxide, written here as FeO(OH), dehydrates around 200 °C. [18] [19] 2 FeO(OH) → Fe 2 O 3 ...
Aniline reacts with strong acids to form the anilinium (or phenylammonium) ion (C 6 H 5 −NH + 3). [ 20 ] Traditionally, the weak basicity of aniline is attributed to a combination of inductive effect from the more electronegative sp 2 carbon and resonance effects, as the lone pair on the nitrogen is partially delocalized into the pi system of ...
This is a list of the various reported boiling points for the elements, with recommended values to be used elsewhere on Wikipedia. ... 26 Fe iron; use: 3134 K: 2861 ...
It is the softest of the commonly recognised metalloids. Tellurium reacts with boiling water, or when freshly precipitated even at 50 °C, to give the dioxide and hydrogen: Te + 2 H 2 O → TeO 2 + 2 H 2. It has a melting point of 450 °C and a boiling point of 988 °C. Tellurium has a polyatomic (CN 2) hexagonal crystalline structure.