di-Sodium hydrogen phosphate anhydrous 99% or Disodium hydrogen phosphate anhydrous or Disodium phosphate (DSP) or Sodium phosphate dibasic anhydrous

Product Overview & Quality

Product Name: di-Sodium hydrogen phosphate anhydrous 99% or Disodium hydrogen phosphate anhydrous or Disodium phosphate (DSP) or Sodium phosphate dibasic anhydrous
Brand: QReC (Product Code: QR-D3235-1-0500)
Grade: Analytical Reagent (AR Grade) featuring a certified chemical purity of not less than 99.0 percent. Manufactured and dehydrated under strict QReC global laboratory specifications to maintain minimal loss on drying values. Rigorously tested to enforce ultra-low ppm limits of chloride, sulfate, total nitrogen, water-insoluble matter, and trace heavy metals (such as iron, lead, copper, arsenic, and zinc). Conforms to certified DNase, RNase, and Protease-free specifications, ensuring enzyme-free biological fidelity in life science workflows. Dry, uniform powder matrix dissolves cleanly in water to produce transparent, precipitate-free alkaline buffer solutions. Packaged in a heavy-duty, moisture-barrier polymer container equipped with a hermetic seal.
Physical Properties: White crystalline powder or fine granules. Odorless. Hygroscopic, absorbing ambient atmospheric moisture. Aqueous solutions are mildly alkaline (pH approximately 8.9 to 9.2 for a 1 percent aqueous solution at ambient temperature). Non-combustible and non-corrosive
Solubility: Moderately to freely soluble in water (approximately 8 to 12 grams per 100 milliliters at room temperature; solubility escalates substantially in hot water); practically insoluble in ethanol.
Key Use: Heavily utilized as the standard alkaline component paired with sodium dihydrogen phosphate to prepare physiological Phosphate Buffer (PB) and Phosphate-Buffered Saline (PBS) formulations (pH 5.8 to 8.0) for cell culture, molecular biology, biochemistry, and immunodiagnostic procedures. Extensively applied as an inorganic buffer salt modifier in High-Performance Liquid Chromatography (HPLC) mobile phases to stabilize solute ionization states and optimize peak symmetry. Routinely employed in enzymatic kinetics and protein purification procedures to maintain target pH equilibria. Serves as an analytical reference standard for inorganic phosphate determinations in chemical and clinical analytical testing, and functions as a mineral stabilizer in food and pharmaceutical formulations.

Safety & Hazards

Classification: Non-hazardous substance under standard GHS criteria in typical laboratory usage. Low acute toxicity profile; particulate dust may exert mild mechanical irritation to ocular, dermal, and respiratory surfaces.
Health Risks: Direct eye contact may cause transient mechanical irritation, conjunctival redness, and lacrimation. Prolonged dermal contact may produce mild dryness or superficial irritation. Inhalation of particulate dust can cause minor sneezing, coughing, or upper respiratory discomfort. Ingestion of excessive quantities may provoke transient gastrointestinal upset, abdominal cramps, or osmotic diarrhea due to phosphate salt accumulation.
First Aid Measures: Flush affected eyes thoroughly with clean running water for at least 10 to 15 minutes. Wash exposed skin with soap and water. In case of dust inhalation, relocate the individual to fresh air. If accidentally swallowed in substantial amounts, rinse mouth thoroughly, drink water, and seek medical advice if discomfort persists.

Handling & Storage

Storage: Hygroscopic Anhydrous Salt. Unsealed ambient exposure compromises anhydrous stoichiometry and analytical weighing accuracy through moisture uptake. Must be preserved in its original, tightly closed QReC plastic container. Store in a clean, dry, cool, and well-ventilated chemical store at stable room temperature (below 25 to 30 degrees Celsius), sheltered from atmospheric humidity and direct sunlight. Keep strictly segregated from strong mineral acids, strong oxidizing agents, and excessive moisture.
Precautions: Standard laboratory PPE is mandatory, including protective gloves, safety glasses, and a protective lab coat. Re-seal container cap tightly immediately after sampling to protect anhydrous crystal integrity. Minimize dust generation during weighing and dispensing.