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Heptachlor

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Identification
Molecular formula
C10H5Cl7
CAS number
76-44-8
IUPAC name
(1R,2S,6R,7S)-1,4,7,8,9,10,10-heptachlorotricyclo[5.2.1.02,6]dec-8-ene
State
State

At room temperature, Heptachlor is typically a solid. As a pesticide, it is often encountered in powder or pellet 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
373.3190g/mol
Density
1.4740g/cm3
Appearence

Heptachlor is an off-white to tan waxy solid. It can also appear as a powder. Under certain conditions, such as exposure to air and light, it can slowly change color to light gray or white.

Comment on solubility

Solubility of (1R,2S,6R,7S)-1,4,7,8,9,10,10-heptachlorotricyclo[5.2.1.02,6]dec-8-ene

The compound (1R,2S,6R,7S)-1,4,7,8,9,10,10-heptachlorotricyclo[5.2.1.02,6]dec-8-ene exhibits minimal solubility in common solvents. This is primarily due to its complex, chlorinated structure, which significantly influences its interaction with various solvents.

Key Points on Solubility:

  • Solvent Polarity: Being a chlorinated hydrocarbon, the compound tends to have low solubility in polar solvents such as water.
  • Nonpolar Solvents: It is more soluble in nonpolar solvents, additives like hexane, benzene, or toluene.
  • Temperature Dependence: Solubility can increase with higher temperatures, although this compound's solubility remains generally low.
  • Environmental Implications: The limited solubility in water makes it difficult for this compound to migrate through aqueous environments.

In summary, this compound's unique structure leads to a solubility profile that is characterized by its preference for nonpolar solvents, showcasing a clear example of how molecular configuration can influence solubility behavior. As always, it is crucial to consider these factors when handling and applying such chemicals.

Interesting facts

Interesting Facts about (1R,2S,6R,7S)-1,4,7,8,9,10,10-heptachlorotricyclo[5.2.1.02,6]dec-8-ene

(1R,2S,6R,7S)-1,4,7,8,9,10,10-heptachlorotricyclo[5.2.1.02,6]dec-8-ene, commonly known as heptachlor, is a fascinating compound with a history steeped in both utility and controversy.

Key Highlights

  • Historically Significant: Heptachlor was originally developed as a pesticide in the mid-20th century. Its application in agricultural practices marked significant advances in crop protection.
  • Complex Structure: The compound exhibits a unique tricyclic structure, which is rare and allows for a variety of chemical interactions.
  • Environmental Concerns: While effective as an insecticide, heptachlor has been identified as an environmental contaminant due to its persistence in the environment and potential adverse effects on wildlife.
  • Bioaccumulation: One of the properties of heptachlor that has raised concern is its ability to bioaccumulate in fatty tissues, potentially leading to harmful effects on higher trophic levels.
  • Regulatory Actions: Due to its toxicity and environmental impact, heptachlor has seen bans or restrictions in many countries, underlining the importance of responsible chemical use.

Chemical Insights

Scientists are intrigued by heptachlor not just for its historical applications, but also for its chemical properties. Studies continue to explore degradation pathways in various environments and the compound's interactions with biological systems. As stated by chemical researchers: "Understanding such compounds is vital for developing safer alternatives and ensuring environmental protection."


In conclusion, (1R,2S,6R,7S)-1,4,7,8,9,10,10-heptachlorotricyclo[5.2.1.02,6]dec-8-ene serves as a reminder of the dual-edged nature of chemical compounds. While they can bring about significant benefits, their impact on health and the environment must be critically evaluated and monitored.