1,2,3,4,6,7,8-Heptachlorodibenzo-P-dioxin

Base Information

• Chemical Name: 1,2,3,4,6,7,8-Heptachlorodibenzo-P-dioxin
• CAS No.: 35822-46-9
• Molecular Formula: C12H Cl7 O2
• Molecular Weight: 425.31
• Hs Code.: 2932999060
• European Community (EC) Number: 694-835-3
• UN Number: 2811
• UNII: MM6333103R
• DSSTox Substance ID: DTXSID1052034
• Nikkaji Number: J74.770J
• Wikipedia: Heptachlorodibenzo-p-dioxin
• Wikidata: Q26841244
• Mol file: 35822-46-9.mol

Synonyms:1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin;1,2,3,4,6,7,8-heptachlorodibenzodioxin;HCDD;HpCDD

Chemical Property of 1,2,3,4,6,7,8-Heptachlorodibenzo-P-dioxin

Chemical Property:

• Vapor Pressure: 9.18E-10mmHg at 25°C
• Melting Point: 265°C
• Refractive Index: 1.6710 (estimate)
• Boiling Point: 503.3°Cat760mmHg
• Flash Point: 189.6°C
• PSA: 18.46000
• Density: 1.834g/cm³
• LogP: 8.15840
• Water Solubility.: 0.002565ug/L(26.0 oC)
• XLogP3: 7.5
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 423.776673
• Heavy Atom Count: 21
• Complexity: 400
• Transport DOT Label: Poison

Purity/Quality:

99% ^*data from raw suppliers

Heptachlorodibenzo-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=C2C(=C(C(=C1Cl)Cl)Cl)OC3=C(O2)C(=C(C(=C3Cl)Cl)Cl)Cl
• Uses: A toxic polychlorinated dibenzo-p-dioxin detected in domestic meat and poultry.

Technology Process of 1,2,3,4,6,7,8-Heptachlorodibenzo-P-dioxin

There total 29 articles about 1,2,3,4,6,7,8-Heptachlorodibenzo-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:

Pentachlorophenol (87-86-5,67471-28-7) → 1,2,3,4,6,7,9-heptachlorodibenzo-p-dioxin (58200-70-7) + HpCDD 1234678 (35822-46-9) + hexachlorobenzene (118-74-1,67471-27-6) + 2,3,5,6-tetrachlorophenol (935-95-5) + 2,3,4,5-tetrachlorophenol (4901-51-3) + 2,3,4,6-tetrachlorophenol (58-90-2)

Guidance literature:

at 990 ℃; for 0.00555556h; Product distribution; Mechanism; other polychlorophenols and their sodium salts, other temp. and times;

Reference yield:

artificial solid municipal waste → HpCDD 1234678 (35822-46-9) + 2,3,7,8-Tetrachloro-dibenzo[1,4]dioxine (1746-01-6,56795-67-6) + 1,2,3,4,6,7,8,9-octachlorodibenzodioxin (3268-87-9) + 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin; 1,2,3,4,6,7,9-heptachlorodibenzo-p-dioxin; mixture of

Guidance literature:

With air; at 780 ℃; Further byproducts given. Title compound not separated from byproducts; Formation of xenobiotics;

DOI:10.1016/S0045-6535(00)00235-6

Reference yield:

chlorothalonil (1897-45-6) → HpCDD 1234678 (35822-46-9) + 2,3,7,8-Tetrachloro-dibenzo[1,4]dioxine (1746-01-6,56795-67-6) + 1,2,3,4,6,7,8,9-octachlorodibenzodioxin (3268-87-9)

Guidance literature:

With oxygen; at 500 - 900 ℃; Further Variations:; Temperatures; Product distribution; Formation of xenobiotics; combustion;

DOI:10.1016/S0045-6535(99)00231-3

upstream raw materials:

Pentachlorophenol

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

2,3,4,6-tetrachlorophenol

1,2,3,4,7,8-hexachlorodibenzodioxin

Refernces

• 1、 Liljelind, Per,Unsworth, John,Maaskant, Onno,Marklund, Stellan. "Removal of dioxins and related aromatic hydrocarbons from flue gas streams by adsorption and catalytic destruction". . p. 615 - 623. Retrieved 2007/10/03.
• 2、 Kim, Sam-Cwan,Jeon, Sung-Hwan,Jung, Il-Rok,Kim, Ki-Heon,Kwon, Myung-Hee,Kim, Jae-Hyung,Yi, Jun-Heung,Kim, Seung-Jin,You, Jae-Cheon,Jung, Dong-Hee. "Formation and emission status of PCDDS/PCDFS in municipal solid waste incinerators in korea". . p. 701 - 707. Retrieved 2007/10/03.