Product Overview & Quality

Product Name: di-Sodium hydrogen phosphate dodecahydrate (Disodium phosphate dibasic dodecahydrate)
Brand: Kemaus (Product Code: KA-478)
Grade: Analytical Reagent (AR Grade) with a premium purity of 99 percent or higher. Meticulously manufactured and verified under Kemaus strict laboratory quality control standards to ensure exceptionally low trace levels of chlorides, sulfates, and heavy metals, providing a highly reliable chemical baseline for quantitative workflows.
Physical Properties: Odorless, colorless crystalline flakes or a white crystalline powder. It readily loses its crystalline water content when exposed to dry ambient air.
Solubility: Highly soluble in water (solubility increases substantially in warm water); practically insoluble in alcohol. Yields a mildly alkaline aqueous solution.
Key Use: Heavily utilized as a primary compound paired with sodium dihydrogen phosphate for preparing Phosphate Buffer Solutions. These buffers are widely used across biochemistry, molecular biology, and clinical laboratories to maintain stable physiological pH baselines (typically within the pH 6.5 to 8.0 window). Commonly applied in formulating specialized biological culture media, and functions as an effective reagent for analytical precipitation assays.

Safety & Hazards

Classification: Not classified as a dangerous substance according to GHS regulations. It presents a highly stable chemical profile with low toxicity. Acts as a mild physical and mechanical tissue irritant.
Health Risks: Direct eye contact with fine dust or crystals triggers temporary mechanical irritation, watering, and minor redness. Prolonged skin contact may cause slight localized dryness. Inhalation of airborne particles may induce coughing or sneezing.
First Aid Measures: Flush eyes or skin immediately with plenty of flowing water for at least 15 minutes. Seek medical evaluation if irritation develops or persists.

Handling & Storage

Storage: Highly Efflorescent. It easily loses its twelve chemical water molecules in dry air conditions, which alters its crystalline form and compromises weight precision during quantitative preparation. Must be stored in its original, tightly sealed Kemaus container. Keep in a cool, dry, and well-ventilated space at stable room temperature (below 30 degrees Celsius). Keep container tightly capped immediately after each use.
Precautions: Wear standard personal protective equipment (PPE), including laboratory gloves, safety glasses, and a particulate dust mask. Avoid leaving the bulk chemical exposed to open atmospheric air for prolonged intervals.