Sodium Dihydrogen Phosphate Dihydrate
Sodium Dihydrogen Phosphate Dihydrate (NaH₂PO₄·2H₂O)—widely known as Sodium Phosphate Monobasic Dihydrate or Monosodium Phosphate Dihydrate—is a high-purity, white crystalline inorganic compound belonging to the phosphate salt family. Renowned for its superior aqueous solubility and consistent buffering capacity, this chemical reagent serves as a vital component in formulating physiological buffers, standard phosphate buffered saline (PBS), chromatography eluents, and biochemical reagents. It is an essential staple across university chemistry faculties, biotechnology departments, pharmaceutical formulation plants, and clinical testing laboratories throughout Bangladesh.
Maintaining exact pH equilibrium is crucial in biochemical analyses, microbiological culture media preparation, and enzymatic kinetic studies. Sodium Dihydrogen Phosphate Dihydrate acts as a premier weak acid donor in phosphate buffer pairings (typically combined with Disodium Hydrogen Phosphate, Na₂HPO₄) to stabilize physiological pH ranges between 5.8 and 8.0. The dihydrate crystalline form offers superior shelf-life stability and resists rapid atmospheric moisture caking compared to hygroscopic anhydrous variants, guaranteeing precise gravimetric measurements during standard solution preparation.
Supplied in analytical reagent (AR) and laboratory reagent (LR) grades, it guarantees high chemical purity (≥99.0%) with strictly controlled trace impurities of heavy metals, chlorides, sulfates, and iron. Victor Scientific Co. supplies genuine laboratory chemicals, analytical reagents, and testing apparatus nationwide in hermetically sealed, tamper-evident bottles with guaranteed quality assurance and dependable delivery across all 64 districts of Bangladesh.
✹ Key Features
High Analytical Purity (≥99.0% AR Grade)
Refined under rigorous laboratory manufacturing standards to guarantee minimal insoluble matter, low chloride traces, and reproducible analytical performance.
Superior Buffer Capacity
Acts as an indispensable primary component for preparing Sorensen's phosphate buffer, standard PBS, and biological media across pH 5.8 to 8.0.
Stable Dihydrate Crystalline Form
The two bound water molecules (NaH₂PO₄·2H₂O) provide structural stability and reduce hygroscopic clumping during routine laboratory dispensing.
High Aqueous Solubility
Dissolves rapidly and completely in distilled or deionized water, producing clear, colorless, and neutral-to-mildly-acidic aqueous solutions.
Versatile Analytical Compatibility
Ideal for high-performance liquid chromatography (HPLC) mobile phases, spectrophotometric assays, and enzymatic reaction mixtures.
Secure Moisture-Resistant Packaging
Packaged in heavy-duty polyethylene laboratory bottles fitted with airtight caps to safeguard against ambient humidity absorption.
✹ Applications
- Preparation of biological buffers, physiological saline (PBS), and molecular biology reagents
- Mobile phase buffer additive in High-Performance Liquid Chromatography (HPLC) and capillary electrophoresis
- Microbial culture media formulation, fermentation broth pH stabilization, and diagnostic assays
- Pharmaceutical R&D, active ingredient stabilization, and liquid dosage formulation testing
- Industrial water treatment testing, textile processing chemistry, and boiler water phosphate benchmarking
- Undergraduate and postgraduate practical chemistry experiments in universities and polytechnics
✹ Why Choose Sodium Dihydrogen Phosphate Dihydrate?
- Highly uniform crystalline grains ensure rapid dissolution without leaving persistent residues or turbidity.
- Delivers predictable ionic strength and stable buffering ranges essential for sensitive enzymatic research.
- Complies with analytical reagent benchmarks required for research publications, clinical diagnostics, and QA/QC compliance.
- Authentic institutional procurement and dependable stock availability backed by Victor Scientific Co.
✹ Benefits
- Guarantees accurate gravimetric measurements, eliminating standard solution concentration errors.
- Prevents drift in biochemical reactions by maintaining strict pH thresholds.
- Lowers contamination risks with certified low limits for iron, arsenic, and heavy metal ions.
- Delivers a long shelf-life reagent suitable for multi-semester academic practicals and continuous industrial testing.
✹ About Victor Scientific Co.
Victor Scientific Co. provides quality laboratory equipment, measuring instruments and scientific tools in Bangladesh. We supply reliable products for educational institutions, industries, laboratories and professional users.