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Thionyl chloride

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Identification
Molecular formula
SOCl2
CAS number
7719-09-7
IUPAC name
thionyl chloride
State
State

Thionyl chloride is a liquid at room temperature.

Melting point (Celsius)
-104.50
Melting point (Kelvin)
168.70
Boiling point (Celsius)
79.00
Boiling point (Kelvin)
352.00
General information
Molecular weight
118.97g/mol
Molar mass
118.9700g/mol
Density
1.6380g/cm3
Appearence

Thionyl chloride is a colorless to yellow fuming liquid with a suffocating pungent odor. It may appear slightly greenish as it ages due to the presence of impurities.

Comment on solubility

Solubility of Thionyl Chloride

Thionyl chloride (SOCl2) is a fascinating compound when it comes to its solubility characteristics. It showcases a few notable properties that make it relevant in various chemical processes:

  • Polar Solvent: Thionyl chloride is considered a polar molecular compound, which primarily dissolves in polar organic solvents.
  • High Solubility in Organic Solvents: It is highly soluble in solvents such as ether, benzene, and alcohols. This solubility is crucial for its applications in organic synthesis.
  • Limited Solubility in Water: While thionyl chloride can react with water, leading to the formation of sulfur dioxide and hydrochloric acid, its actual solubility in pure water is quite low. Therefore, one must exercise caution when handling it in aqueous environments.

In summary, thionyl chloride's solubility behavior illustrates its utility and importance in organic reactions, especially as a reagent in the synthesis of various chemical compounds. As the saying goes, "like dissolves like," and this principle is key to understanding how thionyl chloride interacts with different solvents.

Interesting facts

Interesting Facts About Thionyl Chloride

Thionyl chloride is a fascinating chemical compound with several intriguing applications and properties that make it stand out in the world of chemistry. Here are some noteworthy points:

  • Versatile Reactant: Thionyl chloride is widely utilized as a reagent in organic synthesis, commonly for converting alcohols into chlorides.
  • Chlorination Agent: Functioning as a useful chlorinating agent, it plays a critical role in synthesizing thiol compounds and sulfur-containing molecules.
  • Solvent Characteristics: It is known for its ability to dissolve a wide range of organic compounds, making it beneficial for various chemical reactions.
  • Byproducts of Interest: When reacted with water, it forms sulfur dioxide and hydrochloric acid, both of which are significant byproducts used in numerous chemical processes.
  • Safety Precautions: Thionyl chloride is highly reactive and should be handled with caution, as it can release toxic fumes. Scientists working with this compound must use appropriate safety gear and conduct experiments in well-ventilated areas.
  • Historical Importance: This compound has been pivotal in the development of intermediates in pharmaceuticals and agrochemicals, showcasing its importance in both research and industrial applications.

In summary, thionyl chloride is not just an ordinary reagent; it is a powerful tool in the hands of chemists that exemplifies the intricate connections between chemical reactivity and practical applications. As one renowned chemist once said, "The beauty of chemistry lies in its ability to transform the ordinary into the extraordinary."


Synonyms
THIONYL CHLORIDE
Thionyl dichloride
7719-09-7
Sulfinyl chloride
Sulfurous dichloride
Sulfurous oxychloride
Sulfinyl dichloride
Sulfur oxychloride
SOCl2
Sulfur chloride oxide
Sulfur chloride oxide (Cl2SO)
dichloridooxidosulfur
4A8YJA13N4
CCRIS 1280
HSDB 859
sulfur dichloride oxide
EINECS 231-748-8
Thionyl chloride (socl2)
Sulfur oxychloride (socl2)
UNII-4A8YJA13N4
AI3-10628
DTXSID3064778
CHEBI:29290
(SCl2O)
[SCl2O]
EC 231-748-8
Sulfur chloride oxide (scl2o)
DTXCID0047953
231-748-8
thionyl chloride (acgih)
Thionylchloride
Dichlorosulfoxide
MFCD00011449
Thionyl chloride, ReagentPlus(R), >=99%
thionylchioride
thionylchoride
Thionyichloride
Thionylchlorid
thiony-chloride
thionyl chlorie
thionyl choride
Thionyl cloride
thionyl-chloride
thionyldichloride
sulphinyl chloride
thionyl -chloride
thionyl chloride-
UN1836
SULFOXIDE CHLORIDE
Thionyl chloride, >=98%
THIONYL CHLORIDE [MI]
THIONYL CHLORIDE [HSDB]
Thionyl chloride, technical grade
Thionyl chloride, LR, >=99.5%
AKOS016016202
Thionyl chloride, reagent grade, 97%
UN 1836
Thionyl chloride, puriss., >=99.0%
Thionyl Chloride, dichloromethane solvent
BP-14098
Thionyl chloride [UN1836] [Corrosive]
NS00001820
T2040
T2048
Thionyl chloride, ReagentPlus(R), >=99.0%
Thionyl chloride, SAJ first grade, >=90.0%
Thionyl chloride, SAJ special grade, >=95.0%
Q409171
Thionyl chloride, ReagentPlus(R), 99.5%, low iron