Potassium monochloride or Potassium salt or Hydrochloric acid potassium salt

Product Overview & Qualit

Product Name: Potassium chloride 99.5% or Potassium monochloride or Sylvite or Hydrochloric acid potassium salt
Brand: QReC (Product Code: QR-P5067-1-1000)
Grade: Analytical Reagent High Purity Grade (AR Grade / ACS Grade) featuring a certified chemical assay of not less than 99.5 percent in a 1,000 g (1 kg) laboratory container. Multi-crystallized and purified under strict QReC global laboratory specifications without anti-caking conditioning additives. Moisture content and loss on drying are tightly controlled below 0.2 percent. Strictly tested to enforce minimal water-insoluble matter (below 0.005 percent), alongside ultra-low ppm limits of bromide, iodide, sulfate, phosphate, total nitrogen, calcium, magnesium, and sodium. Trace heavy metals (such as iron, lead, copper, zinc, arsenic, and barium) are strictly maintained at minimal parts-per-million thresholds. Certified DNase and RNase-free, ensuring compatibility with sensitive biological and enzymatic workflows. Dry, uniform cubic crystals dissolve cleanly and rapidly in water to yield crystal-clear, neutral, particulate-free solutions. Packaged in a heavy-duty, moisture-barrier polymer container equipped with an airtight double hermetic seal.
Physical Properties: Colorless transparent cubic crystals or fine white crystalline powder. Odorless with a cooling, sharp saline taste resembling table salt. Highly stable under ambient atmospheric conditions; non-hygroscopic in low-humidity environments, but susceptible to caking in high humidity. Non-combustible inorganic solid. Aqueous solutions are neutral (pH approximately 5.5 to 8.0 for a 5 percent aqueous solution at room temperature). Dissolution in water is slightly endothermic, absorbing enthalpy and causing a slight temperature drop.
Solubility: Readily and highly soluble in water (approximately 34 grams per 100 milliliters at 20 degrees Celsius, increasing to over 56 grams per 100 milliliters in boiling water); soluble in glycerol; slightly soluble in ethanol; practically insoluble in diethyl ether and acetone.
Key Use: Universally utilized as the standard reference electrolyte solution (typically formulated as 3.0 M KCl or saturated KCl solution) for refilling and storing glass combination pH electrodes, ion-selective electrodes (ISE), and oxidation-reduction potential (ORP) sensors to ensure stable liquid-junction potentials. Extensively applied as the international primary reference standard for the precise calibration and verification of laboratory and industrial electrical conductivity meters across defined temperature ranges. Heavily employed in molecular biology, biochemistry, and cell culture as an essential osmotic regulator in preparing physiological salt buffers, including Phosphate-Buffered Saline (PBS) and Tris-Buffered Saline (TBS). Serves as a high-purity potassium micronutrient source in plant tissue culture media formulations and microbiological fermentation broths. Widely used for salting-out proteins, enzymatic crystallization, and pharmaceutical formulation testing.

Safety & Hazards (Low Toxicity, Potential Hyperkalemia & Mechanical Irritant)

Classification: Non-hazardous substance under standard international GHS criteria in routine laboratory handling. Exceptionally low acute toxicity profile; non-corrosive and non-volatile solid. Particulate dust may exert mild mechanical irritation to ocular, dermal, and upper respiratory tissues.
Health Risks: Direct ocular contact causes transient mechanical stinging, conjunctival redness, and tearing. Prolonged dermal contact can cause minor dryness or superficial skin irritation. Inhalation of airborne dust irritates the mucous membranes of the respiratory tract, inducing coughing and sneezing. Critical Physiological Risk: Ingestion of massive acute quantities induces severe hyperkalemia, disrupting myocardial and neuromuscular membrane potentials, potentially triggering cardiac arrhythmias, vomiting, severe abdominal spasms, diarrhea, and cardiovascular collapse, particularly in individuals with impaired renal clearance.
First Aid Measures: Flush affected eyes thoroughly with clean running water for at least 15 minutes while stripping contaminated clothing; remove contact lenses promptly and seek medical advice if irritation persists. 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, administer water in moderate amounts, and seek prompt medical attention if cardiac symptoms or severe gastric discomfort occur.

Handling & Storage

Storage: Stable Analytical Inorganic Salt. High atmospheric humidity may cause caking over prolonged storage. Must be preserved in its original, tightly closed QReC container. Store in a clean, strictly dry, cool, and well-ventilated dedicated chemical store at controlled temperatures (below 25 to 30 degrees Celsius), sheltered from atmospheric moisture and direct sunlight. Keep strictly segregated from strong oxidizing agents, concentrated mineral acids (such as sulfuric acid, which liberates hydrogen chloride gas), silver salts, and bromine trifluoride.
Precautions: Standard laboratory PPE is mandatory, including protective nitrile gloves, safety glasses, and a protective lab coat. Re-seal container cap tightly immediately after sampling to prevent caking. Minimize dust generation during weighing and dispensing.