CAS No.: 49557-75-7 is the Chemical Abstracts Service Registry Number for a specific chemical compound. This compound is known as 2,4-Dichlorophenoxyacetic acid, which is a synthetic auxin commonly used as a herbicide. It is a systemic herbicide, meaning it is absorbed and translocated throughout the plant, ultimately causing the plant to die.
Below is a table outlining the physical and chemical properties of 2,4-Dichlorophenoxyacetic acid:
Property | Value |
---|---|
Chemical Formula | C8H6Cl2O3 |
Molecular Weight | 221.04 g/mol |
Appearance | White to light tan powder |
Melting Point | 140-141°C |
Boiling Point | Decomposes at 160-165°C |
Solubility | Soluble in water |
Density | 1.61 g/cm3 at 20°C |
Vapor Pressure | 0.007 mPa at 25°C |
pH | 2.7 (1% solution) |
Flash Point | Not applicable |
Stability | Stable under normal conditions, but may decompose at high temperatures or in the presence of strong acids or bases |
2,4-Dichlorophenoxyacetic acid is widely used in agriculture to control broadleaf weeds in various crops, including cereals, pastures, and orchards. It is also used in residential settings for weed control in lawns and gardens. However, it is important to handle this compound with care, as it can be toxic to humans and animals if not used properly. Proper protective equipment and application techniques should be employed when using products containing 2,4-Dichlorophenoxyacetic acid.
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