For professionals in the chemical and allied industries, a deep understanding of a compound's chemical properties and specifications is fundamental to its effective application. Calcium Nitrate Tetrahydrate (CAS 13477-34-4) is no exception. This white crystalline solid, known for its high solubility and dual nutrient content, is pivotal in sectors ranging from agriculture to advanced material science. As a dedicated manufacturer, we ensure our Calcium Nitrate Tetrahydrate adheres to rigorous quality standards, and this article aims to illuminate the technical specifications that make it such a valuable commodity.

The molecular formula for Calcium Nitrate Tetrahydrate is Ca(NO₃)₂·4H₂O, indicating that each molecule of calcium nitrate is associated with four molecules of water. This hydration is critical to its physical properties, contributing to its crystalline structure and high solubility in water. Typical physical characteristics include its appearance as a white crystalline powder or granular solid. While the melting point can vary slightly due to decomposition, it generally occurs around 42-56°C, indicating it readily dissolves or breaks down at elevated temperatures. Its density is approximately 1.86 g/cm³, which is relevant for transportation and storage calculations. From a manufacturer's perspective, controlling these physical attributes during production ensures consistency for end-users.

The chemical specifications are where the true utility of Calcium Nitrate Tetrahydrate is defined. Our product, for instance, typically offers a purity of 99% minimum. This high purity is crucial for applications where contaminants could be detrimental. Key chemical parameters often specified include:

• Calcium Oxide (CaO) content: Typically around 23.0% minimum, this is a direct indicator of the calcium content available for plant nutrition or chemical reactions.
• Calcium (Ca) Soluble content: Usually specified as a percentage, reflecting the amount of calcium that can be readily dissolved and utilized.
• Nitrate Nitrogen (N) content: Commonly around 11.7% minimum, this highlights the readily available nitrogen, vital for plant growth and certain chemical processes.
• Water Insoluble matter: This specification is kept to a very low percentage (e.g., 0.01% max), ensuring minimal particulate contamination.
• pH Value: Often specified to be between 5-7, indicating a near-neutral solution which is beneficial for many applications, especially in agriculture.
• Heavy Metals and Chloride/Sulfate content: These are typically kept at trace levels (e.g., < 0.001% for heavy metals), critical for purity-sensitive applications and environmental compliance.

These specifications are not arbitrary; they directly inform the compound's performance. In agriculture, the high soluble calcium and nitrate nitrogen content ensures efficient nutrient uptake, combating deficiencies and promoting healthy growth. In industrial settings, the predictable chemical reactions driven by the nitrate and calcium ions are leveraged in concrete hardening, explosive formulations, and water treatment. For instance, the specific nitrate content is key for its role in denitrification processes.

As a manufacturer, maintaining these specifications consistently is our priority. We understand that our clients, whether in the agricultural sector looking for optimal fertilizer performance or in the industrial sector requiring precise chemical inputs, depend on the reliability of our product. When procuring Calcium Nitrate Tetrahydrate, always refer to the manufacturer's Certificate of Analysis (CoA) to verify that the product meets the required specifications for your intended use. As a leading supplier, we are transparent with our product data and welcome inquiries regarding specific parameters or custom requirements. Understanding these technical details empowers our customers to make informed decisions and maximize the value derived from Calcium Nitrate Tetrahydrate.