The CAS number for 2-Hydroxy Phosphonic Acid, abbreviated as hpaa, is 23783-26-8。

2-Hydroxy phosphonoacetic acid, also known as phosphonoacetic acid (PAA), is an organophosphorus compound with the chaical formula HOCH2PO3−HOCH2PO3− and a counter cation, often a hydrogen ion, making the full formula HOCH2PO3HHOCH2PO3H. Here are some key points about 2-hydroxy phosphonoacetic acid:

Chaical Properties

• Structure: It features a central carbon atom bonded to a hydroxyl group (-OH), a carboxyl group (-COOH), and a phosphonate group (-PO3H2).

• Acidity: The molecule can act as a weak acid due to the presence of the carboxyl group.

• Ionization: In aqueous solution, the phosphonate group can lose a proton to form HOCH2PO3−HOCH2PO3− and a hydrogen ion (H+).

Uses

1. Herbicide: It is a key ingredient in some herbicides, where it inhibits the enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS), an enzyme involved in the biosynthesis of aromatic amino acids in plants. This leads to the cessation of growth in the targeted plants.

2. Chaical Intermediate: It can be used as an intermediate in the synthesis of other organophosphorus compounds.

Safety and Precautions

• Toxicity: As with many herbicides, it can be toxic to non-target organisms if not used properly.

• Handling: It should be handled with care, using appropriate personal protective equipment (PPE), to prevent exposure.

• Environmental Impact: It is important to use it according to the manufacturer's instructions to minimize environmental impact.

Environmental Fate

• Degradation: The environmental fate of 2-hydroxy phosphonoacetic acid can vary, but it may degrade through microbial action or hydrolysis.

• Persistence: Depending on environmental conditions, it may persist in the environment for varying lengths of time.

Storage

• Conditions: It should be stored in a cool, dry place, away from h3 oxidizing agents and sources of ignition.

2-Hydroxy phosphonoacetic acid is an important compound in the field of agriculture due to its use in herbicides. Its unique structure and reactivity make it a versatile molecule in chaical synthesis and biochaistry. As with any chaical used in agriculture, it is important to use it responsibly to ensure safety for humans and the environment.

To learn more about HPAA, you can check the website:https://www.kairuiwater.com/hpaa.htm

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