Specifications Table

Product Name – Potassium phosphate, dibasic, 99%, for HPLC, anhydrous
Quantity/Pack Size – 250GR
Form – Powder
Grade – HPLC
Application – Chromatography, buffer preparation

Product Overview

This HPLC-grade dibasic potassium phosphate (99% purity) is an anhydrous, ultra-pure reagent designed for demanding chromatographic applications where trace impurities can compromise results. The high assay level ensures consistent performance in buffer systems, while the anhydrous form eliminates moisture-related variability. Its low metal content (<10ppm typical) prevents interference in sensitive detection methods like UV, MS, or conductivity. The fine, free-flowing powder dissolves completely without residues, maintaining baseline stability in gradient separations. Packaged under nitrogen to prevent oxidation, this reagent maintains its purity throughout storage. The 250g pack size offers sufficient quantity for routine HPLC workflows while minimizing exposure to atmospheric contaminants during use. Its neutral pH profile makes it ideal for maintaining physiological conditions in analytical systems. The product undergoes rigorous testing for heavy metals, anions, and microbial contamination to meet pharmacopeial standards.

FAQs

1. What is the typical moisture content of this anhydrous dibasic potassium phosphate?

The anhydrous grade maintains moisture content below 0.5% as verified by Karl Fischer titration, ensuring consistent performance in moisture-sensitive applications.

2. Can this product be used for preparing phosphate-buffered saline solutions?

While chemically suitable, the HPLC grade is optimized for chromatography rather than biological buffers, where lower purity grades may be more cost-effective for PBS preparation.

3. What alternatives exist for lower-purity potassium phosphate applications?

For general laboratory use, our 98% technical grade dibasic potassium phosphate offers comparable functionality at reduced cost, though with higher trace metal content.

4. How should this reagent be stored to maintain its HPLC-grade purity?

Store tightly sealed in the original container at 15-25°C, protected from direct sunlight and moisture. Avoid transferring to plastic containers as static can attract atmospheric contaminants.

5. Does this product contain any anti-caking agents or additives?

The anhydrous HPLC grade contains no additives, anti-caking agents, or flow aids to ensure absolute purity for chromatographic applications.