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Heptachlor

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Identification
Molecular formula
C10H5Cl7
CAS number
76-44-8
IUPAC name
1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hepta-2,5-diene
State
State
Solid at room temperature, often found in a crystalline powder form.
Melting point (Celsius)
95.00
Melting point (Kelvin)
368.15
Boiling point (Celsius)
135.00
Boiling point (Kelvin)
408.15
General information
Molecular weight
373.32g/mol
Molar mass
373.3210g/mol
Density
1.6500g/cm3
Appearence

Heptachlor is a white or tan crystalline solid. Its appearance may vary depending on its form and purity, typically found in powder format. Due to its chlorinated nature, it is chemically stable but slowly undergoes photodegradation to more toxic forms.

Comment on solubility

Solubility of 1,2,3,4,7,7-Hexachlorobicyclo[2.2.1]hepta-2,5-diene

The solubility characteristics of 1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hepta-2,5-diene are dictated by its unique chemical structure and the presence of multiple chlorine atoms. This compound generally exhibits low solubility in water, primarily due to the following factors:

  • Hydrophobic Nature: The bulky chlorinated bicyclic structure contributes to its hydrophobicity, limiting interaction with polar solvents like water.
  • Polarity: The presence of multiple chlorine atoms increases the overall molecular weight and influences the polarity, making the compound less likely to dissolve in nonpolar solvents.
  • Temperature Dependence: Solubility can vary with temperature; however, generally, this compound remains largely insoluble in aqueous environments.

Commonly, such chlorinated compounds are more soluble in organic solvents. It is crucial to consider that:

  1. Solvents: The affinity for solvents such as hexane, methylene chloride, and other nonpolar or weakly polar organic solvents is higher.
  2. Environmental Impact: Low solubility in water often implies persistence in the environment and potential bioaccumulation.

In summary, 1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hepta-2,5-diene showcases a low solubility profile in water, which can raise concerns regarding its environmental behavior and toxicity.

Interesting facts

Interesting Facts about 1,2,3,4,7,7-Hexachlorobicyclo[2.2.1]hepta-2,5-diene

1,2,3,4,7,7-Hexachlorobicyclo[2.2.1]hepta-2,5-diene, commonly referred to in the context of organochlorine compounds, has made a noteworthy impact in both environmental science and industrial applications. Here are some intriguing aspects of this compound:

  • Chemical Structure: The unique bicyclic structure of this compound, which includes multiple chlorine atoms, significantly influences its chemical reactivity and stability. The arrangement of atoms within the bicyclic framework is fascinating from a structural standpoint.
  • Historical Significance: This compound is part of a class of chemicals that were historically used as pesticides. Its synthesis and application in the agricultural sector have raised important discussions about environmental impacts and human health.
  • Environmental Persistence: One of the most critical concerns surrounding hexachlorobicyclo[2.2.1]hepta-2,5-diene is its persistence in the environment. Organohalides like this one can resist degradation, leading to potential bioaccumulation in various ecosystems.
  • Regulatory Attention: Due to its toxicity and ecological risks, this compound has attracted the scrutiny of regulatory agencies around the world. Its use is limited or prohibited in many jurisdictions, highlighting the ongoing need for responsible chemical management practices.
  • Research Applications: Scientists continue to study 1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hepta-2,5-diene for its insights into chemical behavior and transformation pathways, helping to develop better cleanup strategies for contaminated sites.

In conclusion, 1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hepta-2,5-diene exemplifies the dual nature of chemical innovation—providing utility while also posing significant environmental challenges. Understanding its properties helps scientists navigate the complexities of chemical safety and sustainability.

Synonyms
3389-71-7
1,2,3,4,7,7-Hexachlorobicyclo[2.2.1]hepta-2,5-diene
1,2,3,4,7,7-Hexachloro-2,5-norbornadiene
1,2,3,4,7,7-HEXACHLORONORBORNADIENE
2,5-Norbornadiene, 1,2,3,4,7,7-hexachloro-
AI3-51332
HSDB 6147
EINECS 222-220-8
NSC 46471
1,2,3,4,7,7-Hexachlorobicyclo(2.2.1)hepta-2,5-diene
Bicyclo(2.2.1)hepta-2,5-diene, 1,2,3,4,7,7-hexachloro-
DTXSID00875710
Bicyclo[2.2.1]hepta-2,5-diene, 1,2,3,4,7,7-hexachloro-
BICYCLO(2.2.1)HEPTA-2,5-DIENE,1,2,3,4,7,7-HEXACHLORO-
BICYCLO[2.2.1]HEPTA-2,5-DIENE,1,2,3,4,7,7-HEXACHLORO-
DTXCID401013830
1,2,3,4,7,7Hexachloro2,5norbornadiene
2,5Norbornadiene, 1,2,3,4,7,7hexachloro
C 601
1,2,3,4,7,7Hexachlorobicyclo(2.2.1)hepta2,5diene
2,5-Norbornadiene, 1,2,3,4,7,7-hexachloro-(8CI)
Bicyclo(2.2.1)hepta2,5diene, 1,2,3,4,7,7hexachloro
222-220-8
Hexachloronorbornadiene
ZD9UQS8QGB
NSC-46471
NSC46471
UNII-ZD9UQS8QGB
SCHEMBL8371893
HSDB-6147
1,3,4,7,7-Hexachloronorbornadiene
2, 1,2,3,4,7,7-hexachloro-
1,3,4,7,7-Hexachloro-2,5-norbornadiene
C-601
NS00049945
1,2,3,4,7,7-Hexachloronorbornadiene [HSDB]
1,3,4,7,7-Hexachlorobicyclo[2.2.1]hepta-2,5-diene
Bicyclo[2.2.1]hepta-2, 1,2,3,4,7,7-hexachloro-