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Thionyl chloride is an inorganic compound with the chemical formula SOCl 2.It is a moderately volatile, colourless liquid with an unpleasant acrid odour.Thionyl chloride is primarily used as a chlorinating reagent, with approximately 45,000 tonnes (50,000 short tons) per year being produced during the early 1990s, [5] but is occasionally also used as a solvent.
Chemical formula. C 3 H 9 O 3 P: ... 124.076 g·mol −1 Appearance colourless liquid Density: 1.145 g/mL at 25 °C ... It will react with thionyl chloride to produce ...
Maleic acid has a heat of combustion of -1,355 kJ/mol., [5] 22.7 kJ/mol higher than that of fumaric acid. Maleic acid is more soluble in water than fumaric acid. The melting point of maleic acid (135 °C) is also much lower than that of fumaric acid (287 °C). As confirmed by X-ray crystallography, maleic acid is planar.
2,3-Dimethylmaleic anhydride is an organic compound with the formula (CH 3) 2 C 2 (CO) 2 O. [1] It is related to maleic anhydride (MA) by replacement of the two CH units with CCH 3 groups. The compound can be prepared from two eqiuvalents of MA in the presence of 2-aminopyridine followed by treatment with sulfuric acid.
Acetyl chloride was first prepared in 1852 by French chemist Charles Gerhardt by treating potassium acetate with phosphoryl chloride. [4]Acetyl chloride is produced in the laboratory by the reaction of acetic acid with chlorodehydrating agents such as phosphorus trichloride (PCl 3), phosphorus pentachloride (PCl 5), sulfuryl chloride (SO 2 Cl 2), phosgene, or thionyl chloride (SOCl 2).
Chemical formula. C 2 H 2 Cl 2 O: Molar mass: 112.94 g·mol −1 Appearance Colorless to yellow liquid Density: 1.42 g/mL ... acid and thionyl chloride ...
3,5-Dinitrobenzoyl chloride (C 7 H 3 ClN 2 O 5) is an organic compound with a melting point of 68–69 °C. [1] It is the acyl chloride of 3,5-dinitrobenzoic acid and like it is mainly used in the analysis of organic substances by derivatization .
Methylphosphonyl dichloride is produced by oxidation of methyldichlorophosphine, with sulfuryl chloride: [3]. CH 3 PCl 2 + SO 2 Cl 2 → CH 3 P(O)Cl 2 + SOCl 2. It can also be produced from a range of methylphosphonates (e.g. dimethyl methylphosphonate) via chlorination with thionyl chloride.