💍inorganic chemistry ii review

Ca(H₂PO₄)₂

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Ca(H₂PO₄)₂, commonly known as calcium dihydrogen phosphate, is an inorganic compound that serves as an important source of phosphorus and calcium in fertilizers. This compound is crucial for plant growth as it provides essential nutrients that contribute to root development, flowering, and overall health. Its application in agriculture helps improve soil fertility and crop yield.

5 Must Know Facts For Your Next Test

  1. Ca(H₂PO₄)₂ is often used in the production of fertilizers due to its high solubility, making phosphorus readily available to plants.
  2. As a fertilizer, calcium dihydrogen phosphate enhances the nutrient content of the soil, improving both root growth and flowering.
  3. This compound helps to buffer soil pH, preventing it from becoming too acidic or alkaline, thus maintaining a balanced environment for plant growth.
  4. Calcium dihydrogen phosphate can also improve the microbial activity in the soil, contributing to a healthier ecosystem for plant roots.
  5. In addition to agricultural uses, Ca(H₂PO₄)₂ has applications in the food industry as a food additive and in the pharmaceutical sector as a calcium supplement.

Review Questions

  • How does Ca(H₂PO₄)₂ contribute to soil fertility and plant health?
    • Ca(H₂PO₄)₂ significantly enhances soil fertility by providing essential nutrients like phosphorus and calcium, which are vital for plant growth. Phosphorus aids in energy transfer and root development, while calcium supports cell wall structure and improves nutrient uptake. By increasing the availability of these nutrients in the soil, this compound promotes healthier plants and better crop yields.
  • Discuss the role of phosphorus in fertilizers like Ca(H₂PO₄)₂ and its importance in agriculture.
    • Phosphorus is one of the primary macronutrients found in fertilizers such as Ca(H₂PO₄)₂. It plays a crucial role in various physiological processes within plants, including energy transfer through ATP, photosynthesis, and nutrient transport. Its presence in fertilizers is vital for promoting strong root systems and enhancing flowering and fruiting, ultimately leading to improved agricultural productivity.
  • Evaluate the environmental impact of using Ca(H₂PO₄)₂ as a fertilizer and propose strategies for sustainable use.
    • While Ca(H₂PO₄)₂ can significantly improve crop yields and soil fertility, its overuse may lead to phosphorus runoff into water bodies, causing eutrophication. To mitigate this environmental impact, strategies such as applying the correct amount based on soil tests, using precision agriculture techniques to optimize application rates, and implementing crop rotation practices can be effective. Sustainable management practices not only preserve water quality but also maintain long-term soil health.
Ca(H₂PO₄)₂ Definition - Inorganic Chemistry II Key Term | Fiveable