Sodium Dihydrogen Phosphate Dihydrate - AR/Lab Grade Chemical thumbnail 1

Sodium Dihydrogen Phosphate Dihydrate - AR/Lab Grade Chemical

৳1,000

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Product Code : P0396

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Brand : N/A

Origin : Made in Germany

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Product Specification

Key product information at a glance.

Product Code
P0396
Origin
Made in Germany
Category
Lab Chemicals & Reagents
Available Sizes
500gm
Availability
In Stock
Product
Sodium Dihydrogen Phosphate Dihydrate (Sodium Phosphate Monobasic)
Chemical Grade
Analytical Reagent (AR) / Laboratory Reagent (LR)
Chemical Formula
NaH₂PO₄·2H₂O
CAS Number
13472-35-0 / 10049-21-5
Molecular Weight
156.01 g/mol
Physical Appearance
White crystalline powder / transparent crystals
Assay (Purity)
≥99.0%
pH (5% aqueous solution at 25°C)
4.1 – 4.5
Solubility
Freely soluble in water (approx. 850 g/L at 20°C); insoluble in ethanol
Chloride (Cl)
≤0.001%
Sulfate (SO₄)
≤0.005%
Heavy Metals (as Pb)
≤0.0005%
Iron (Fe)
≤0.0005%
Storage Conditions
Store tightly sealed in a cool, dry, well-ventilated laboratory store (room temperature)
Standard Pack Size
500g bottle / 1 kg pack / 25 kg commercial drum

Product Description

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.

Frequently Asked Questions (FAQ)

Q1

What is the price of Sodium Dihydrogen Phosphate Dihydrate in Bangladesh?

A1

The price of Sodium Dihydrogen Phosphate Dihydrate in Bangladesh typically ranges between BDT 1,200 and BDT 2,500 per 500g bottle, depending on the chemical grade (AR vs. LR) and manufacturing brand (such as Merck, Loba Chemie, HiMedia, or SRL). Contact Victor Scientific Co. directly for exact quotes and bulk institutional pricing.

Q2

What is the CAS number and molecular formula of this chemical?

A2

The CAS Number is 13472-35-0 (or 10049-21-5 for monobasic dihydrate variants), with the molecular formula NaH₂PO₄·2H₂O and a molecular weight of 156.01 g/mol.

Q3

How do you prepare a standard phosphate buffer using this salt?

A3

A standard phosphate buffer is prepared by dissolving calculated molar quantities of Sodium Dihydrogen Phosphate Dihydrate (acidic component) and Disodium Hydrogen Phosphate (basic component) in deionized water, followed by pH fine-tuning with a calibrated pH meter.

Q4

What is the difference between the dihydrate form and anhydrous sodium phosphate monobasic?

A4

The dihydrate contains two water molecules per formula unit (NaH₂PO₄·2H₂O, MW 156.01), making it less prone to absorbing atmospheric humidity and caking into hard lumps compared to the anhydrous form (NaH₂PO₄, MW 119.98).

Q5

Does Victor Scientific Co. deliver laboratory chemicals safely across Bangladesh?

A5

Yes, Victor Scientific Co. packages all chemical reagents in secure, leak-proof containers with protective cushioning and delivers to all 64 districts in Bangladesh—including Chattogram, Rajshahi, Khulna, and Sylhet—within 24 to 48 hours.

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