Chlorine

Base Information

• Chemical Name: Chlorine
• CAS No.: 7782-50-5
• Molecular Formula: Cl2
• Molecular Weight: 70.906
• Hs Code.: 2801100000
• European Community (EC) Number: 231-959-5
• ICSC Number: 0126
• UN Number: 1017
• UNII: 4R7X1O2820
• DSSTox Substance ID: DTXSID1020273
• Wikipedia: Dichlorine
• Wikidata: Q1904422
• NCI Thesaurus Code: C28140
• RXCUI: 1310122
• Mol file: 7782-50-5.mol

Synonyms:Chlorine;Chlorine 35;Chlorine Gas;Chlorine-35;Cl2 Gas;Gas, Chlorine;Gas, Cl2

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Chemical Property of Chlorine

Chemical Property:

• Appearance/Colour: light greenish-yellow gas with an irritating odour
• Vapor Pressure: 6450mmHg at 25°C
• Melting Point: -101 °C
• Refractive Index: 1.375
• Boiling Point: -34 °C
• PSA: 0.00000
• Density: 1.382 g/cm³
• LogP: 1.37900
• Water Solubility.: 0.7 g/100 mL
• XLogP3: 1.6
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 69.9377054
• Heavy Atom Count: 2
• Complexity: 0
• Transport DOT Label: Poison Gas Oxidizer Corrosive

Purity/Quality:

Safty Information:

• Pictogram(s): T,N
• Hazard Codes: T:Toxic;;
• Statements: R23:; R36/37/38:; R50:
• Safety Statements: S9:; S45:; S61:

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Toxic Gases & Vapors -> Oxidizers
• Canonical SMILES: ClCl
• Recent ClinicalTrials: A Clinical Trial of Breast Cancer Neo-adjuvant Therapy Based on Molecular Pathway in FUSCC
• Inhalation Risk: On loss of containment, a harmful concentration of this gas in the air will be reached very quickly.
• Effects of Short Term Exposure: Lachrymation. The substance is corrosive to the eyes, skin and respiratory tract. Rapid evaporation of the liquid may cause frostbite. Inhalation may cause asthma-like reactions. Inhalation may cause pneumonitis. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. Exposure could cause death.
• Effects of Long Term Exposure: The substance may have effects on the respiratory tract and lungs. This may result in chronic inflammation and impaired functions. The substance may have effects on the teeth. This may result in erosion.
• General Description: Chlorine, in the context of the provided literature, is highlighted as an electrophile in selective alkylation reactions, contributing to the formation of contiguous tertiary-quaternary stereocenters with high diastereoselectivity. Additionally, chlorine atoms incorporated into the biphenyl groups of poly(diarylacetylene)s enhance gas permeability, as demonstrated by polymer 2d, which exhibited the highest gas permeability among the tested membranes. These findings underscore chlorine's role in both organic synthesis and material science applications.

Technology Process of Chlorine

There total 1084 articles about Chlorine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 1.0%

lithium perchlorate → lithium chlorate (13453-71-9) + chlorine (7782-50-5) + lithium chloride + lithium oxide

Guidance literature:

With Li₂O₂; In neat (no solvent); isothermal decompn. of LiClO4 melt (corundum apparatus, 332°C (+/-1 K), with addn. of Li2O2); Kinetics;

Reference yield:

N,N-bis(trifluoromethyl)hydroxylamine (359-63-7) + phosphorus pentachloride (10026-13-8,874483-75-7) → N,N-Bis(trifluoromethyl)amine (371-77-7) + chlorine (7782-50-5) + trichlorophosphate (10025-87-3,12599-09-6,63736-95-8,39380-77-3)

Guidance literature:

beim Erwaermen;

DOI:10.1039/jr9570001741

Reference yield:

acetic acid-(N-chloro-2,4-dinitro-anilide) (861295-75-2) + acetic acid (64-19-7,77671-22-8) → 2,4-dinitroacetanilide (610-53-7) + chlorine (7782-50-5)

Guidance literature:

upstream raw materials:

tetrachloromethane

pyrographite

hydrogenchloride

chlorine nitrate

Downstream raw materials:

2-benzothiazolylsulfenyl chloride

1,3-dimethylalloxan

2-propanesulfonic acid

4,5-dichlorothiophene-2-carboxylic acid

Refernces

Electrophile-Dependent Alkylations of Lithiated 4-Alkoxyalk-4-enenitriles

10.1021/acs.joc.7b03205

The research focuses on the electrophile-dependent alkylation reactions of lithiated 4-alkoxyalk-4-enenitriles. The purpose of this study was to investigate the diastereoselective alkylation and acylation of acyclic nitriles, which are challenging due to the need to constrain rotatable single bonds and the inherent bonding of metalated nitriles. The researchers found that alkylation reactions with primary alkyl halides, sulfur, chlorine, and acyl cyanide electrophiles were highly selective, installing contiguous tertiary-quaternary stereocenters with high diastereoselectivity. In contrast, acylations with ester and carbonate electrophiles were modestly selective.

Synthesis and gas permeation properties of poly(diarylacetylene)s having substituted and twisted biphenyl moieties

10.1002/pola.23836

The study investigates the synthesis and gas permeation properties of poly(diarylacetylene)s with substituted biphenyl and anthryl groups. Diarylacetylene monomers containing substituted biphenyl (1a–f) and anthryl (1g) groups were synthesized and polymerized using a TaCl5-n-Bu4Sn catalyst to produce the corresponding polymers (2a–g). The polymers exhibited high thermal stability, with onset temperatures of weight loss over 400°C in air. Free-standing membranes were prepared from several polymers, and desilylation of the Si-containing membrane 2c was carried out to afford 3c. The polymer membranes, particularly those with twisted biphenyl groups, showed high gas permeability, with oxygen permeability (PO2) values ranging from 130 to 1400 barrers. The study highlights the potential of these polymers for gas separation applications, with polymer 2d, containing chlorine atoms in the biphenyl group, demonstrating the highest gas permeability among the tested polymers.