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Chlorpyrifos

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Identification
Molecular formula
C9H11Cl3NO3PS
CAS number
2921-88-2
IUPAC name
[2-chloro-1-(2,4-dichlorophenyl)vinyl] dimethyl phosphate
State
State

At room temperature, chlorpyrifos is in a solid state. It is typically supplied as a white crystalline substance.

Melting point (Celsius)
42.00
Melting point (Kelvin)
315.15
Boiling point (Celsius)
400.00
Boiling point (Kelvin)
673.15
General information
Molecular weight
350.59g/mol
Molar mass
350.5890g/mol
Density
1.3980g/cm3
Appearence

Chlorpyrifos appears as a white, crystalline solid. It is practically insoluble in water but dissolves in organic solvents. It has a distinct mercaptan odor.

Comment on solubility

Solubility of [2-chloro-1-(2,4-dichlorophenyl)vinyl] dimethyl phosphate

The solubility of [2-chloro-1-(2,4-dichlorophenyl)vinyl] dimethyl phosphate can be quite intricate due to its structural components. Several factors influence its solubility:

  • Polarity: The compound contains various chlorine atoms, which can enhance its polarity, potentially affecting its solubility in polar solvents.
  • Hydrogen Bonding: The presence of phosphate groups suggests that hydrogen bonding may play a role in solubility dynamics.
  • Hydrophobic Interactions: The 2,4-dichlorophenyl group may contribute to hydrophobic characteristics that could limit solubility in more polar environments.

When discussing solubility, consider the following key points:

  1. It is likely to be soluble in organic solvents such as acetone and methanol.
  2. Water solubility might be limited due to the bulky and hydrophobic nature of its phenyl group.
  3. Solubility will also be significantly affected by temperature and pH of the solvent.

In summary, the solubility of [2-chloro-1-(2,4-dichlorophenyl)vinyl] dimethyl phosphate is multifaceted, depending on its complex interactions with various solvents. Understanding these properties is crucial for its applications and behavior in different chemical environments.

Interesting facts

Interesting Facts about [2-chloro-1-(2,4-dichlorophenyl)vinyl] dimethyl phosphate

[2-chloro-1-(2,4-dichlorophenyl)vinyl] dimethyl phosphate is a fascinating compound that showcases the unique interplay between halogens and organic phosphates in chemical systems. Here are some intriguing aspects of this compound:

  • Structural Significance: The compound features a vinyl group linked to a dichlorophenyl moiety. This structure highlights the influence of chlorine substituents on the chemical properties and reactivity of organic compounds. The presence of the two chlorine atoms in the phenyl group can significantly enhance the electrophilicity of the compound.
  • Functional Utility: Compounds like [2-chloro-1-(2,4-dichlorophenyl)vinyl] dimethyl phosphate often have applications in various fields, including agriculture, as herbicides or insecticides. Their ability to interact with biological systems makes them valuable in pest control strategies.
  • Analytical Chemistry: The unique structure of this compound allows chemists to study various reactions and mechanisms. Using techniques such as NMR (Nuclear Magnetic Resonance) and GC-MS (Gas Chromatography-Mass Spectrometry), scientists can analyze its properties and degradation pathways effectively.
  • Environmental Impact: Due to their widespread use, understanding the environmental implications of organophosphate compounds is crucial. Research indicates that while they can be effective in controlling pest populations, they may pose risks to non-target organisms and ecosystems.
  • Historical Context: Organophosphates have a rich history in chemistry, originally developed for use in chemical warfare. Today, their role has shifted predominantly to pest management, demonstrating the adaptability of compound usage over time.

The study of [2-chloro-1-(2,4-dichlorophenyl)vinyl] dimethyl phosphate not only sheds light on the intricacies of organic phosphates but also emphasizes the need for responsible usage and environmental consideration in chemical applications.

Synonyms
[2-Chloro-1-(2,4-dichlorophenyl)ethenyl] dimethyl phosphate
Rangado; Shell SD 8280
Dimethylvinphos (Z type)
Dimethylvinphos (E TYPE)
CAA27467
Dimethylvinphos 100 microg/mL in Toluene