2,7-Dichlorodibenzo-P-dioxin

Base Information

• Chemical Name: 2,7-Dichlorodibenzo-P-dioxin
• CAS No.: 33857-26-0
• Molecular Formula: C12H6 Cl2 O2
• Molecular Weight: 253.084
• Hs Code.: 2932999060
• UN Number: 3077
• UNII: 3KMT7J3HEQ
• DSSTox Substance ID: DTXSID1020435
• Nikkaji Number: J34.853H
• Wikidata: Q27257427
• Mol file: 33857-26-0.mol

Synonyms:2,7-dichlorodibenzo-4-dioxin;2,7-dichlorodibenzo-p-dioxin

Chemical Property of 2,7-Dichlorodibenzo-P-dioxin

Chemical Property:

• Vapor Pressure: 9.04E-05mmHg at 25°C
• Melting Point: 201°C
• Refractive Index: 1.6430 (estimate)
• Boiling Point: 350.2°Cat760mmHg
• Flash Point: 140.2°C
• PSA: 18.46000
• Density: 1.47g/cm³
• LogP: 4.89140
• Water Solubility.: 3.75ug/L(25 oC)
• XLogP3: 4.3
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 251.9744848
• Heavy Atom Count: 16
• Complexity: 235
• Transport DOT Label: Class 9

Purity/Quality:

99% ^*data from raw suppliers

2,7-Dichlorodibenzo-p-dioxin ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Other Classes -> Halogenated Polyaromatics
• Canonical SMILES: C1=CC2=C(C=C1Cl)OC3=C(O2)C=C(C=C3)Cl
• Uses: 2,7-Dichlorodibenzo-p-dioxin is a standard used in environmental testing and research and in the study of enthalpy of vaporization of ersistant organic pollutants.

Technology Process of 2,7-Dichlorodibenzo-P-dioxin

There total 6 articles about 2,7-Dichlorodibenzo-P-dioxin 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: 0.305%

4-chloro-phenol (106-48-9,82344-39-6) → 2,8-dichlorodibenzodioxin (38964-22-6) + 2,7-dichloro-dibenzo[1,4]dioxine (33857-26-0) + 2,4-dichlorophenol (120-83-2,40477-79-0) + 2,4,6-Trichlorophenol (88-06-2,67471-29-8)

Guidance literature:

With oxygen; silica gel; copper dichloride; at 300 ℃; Formation of xenobiotics;

DOI:10.1016/j.chemosphere.2007.10.036

Reference yield: 0.266%

4-chloro-phenol (106-48-9,82344-39-6) → 2,8-dichlorodibenzofuran (5409-83-6) + 2,7-dichloro-dibenzo[1,4]dioxine (33857-26-0) + 2,4-dichlorophenol (120-83-2,40477-79-0) + 2,4,6-Trichlorophenol (88-06-2,67471-29-8)

Guidance literature:

With oxygen; silica gel; copper dichloride; at 375 ℃; Further Variations:; Temperatures; Product distribution;

DOI:10.1016/j.chemosphere.2007.10.036

Reference yield:

2,3,7,8-Tetrachloro-dibenzo[1,4]dioxine (1746-01-6,56795-67-6) → 2,3,7-trichlorodibenzodioxin (33857-28-2) + 2,7-dichloro-dibenzo[1,4]dioxine (33857-26-0) + 2,3,6-trichlorophenol (933-75-5) + benzaldehyde (100-52-7) + 2-indanone (615-13-4) + 2,4,6-Trichlorophenol (88-06-2,67471-29-8)

Guidance literature:

With oxygen; at 500 ℃; Rate constant; var. reactor medium;

upstream raw materials:

2,3,7,8-Tetrachloro-dibenzo[1,4]dioxine

4-chloro-1,2-benzenediol

2,5-dichloronitrobenzene

4-chloro-phenol

Downstream raw materials:

dioxin

2-chlorodibenzo-p-dioxin

2,7-dibromo-3,8-dichlorodibenzo-p-dioxin

Refernces

• 1、 Blumenstock,Zimmermann,Schramm,Kettrup. "Identification of surrogate compounds for the emission of PCDD/F (I-TEQ value) and evaluation of their on-line realtime detectability in flue gases of waste incineration plants by REMPI-TOFMS mass spectrometry". . p. 507 - 518. Retrieved 2007/10/03.
• 2、 Lübke, Markus,Whitcombe, Michael J.,Vulfson, Evgeny N.. "A novel approach to the molecular imprinting of polychlorinated aromatic compounds". . p. 13342 - 13348. Retrieved 2007/10/03.