Anhydrous calcium dichloride or Dry grade calcium chloride or Hydrochloric acid calcium salt anhydrous

Product Overview & Quality

Product Name: Calcium chloride anhydrous 95% or Calcium dichloride anhydrous or Anhydrous calcium chloride granules or Hydrochloric acid calcium salt anhydrous
Brand: QReC (Product Code: QR-C1051-1-1000)
Grade: Analytical Reagent and High-Efficiency Desiccant Grade (AR Grade) featuring a certified chemical assay of not less than 95.0 percent in an economical 1,000 g (1 kg) container. Calcined at high temperatures and processed under strict QReC global laboratory specifications without anti-caking conditioning additives. Engineered with a highly porous granular microstructure to optimize surface area for maximum moisture adsorption capacity. Strictly analyzed to enforce minimal water-insoluble matter (strictly below 0.01 percent), alongside ultra-low ppm limits of sulfate, nitrate, magnesium and alkali metals, and trace heavy metals (such as iron, lead, copper, zinc, barium, and arsenic). Dry, uniform white granules dissolve completely in water to yield crystal-clear solutions. Packaged in a heavy-duty, moisture-barrier polymer container equipped with an airtight double hermetic seal to prevent ambient deliquescence.
Physical Properties: White porous granules, pellets, or fused flakes. Odorless with an intensely astringent, salty-bitter taste. Extremely deliquescent under ambient atmospheric conditions, aggressively scavenging moisture vapor from ambient air to form a concentrated liquid brine. Non-combustible inorganic solid. Aqueous solutions are practically neutral to weakly alkaline (pH approximately 7.0 to 8.5 for a 5 percent aqueous solution at room temperature).
Solubility: Readily and highly soluble in water (approximately 74 to 75 grams per 100 milliliters at 20 degrees Celsius, escalating to over 150 grams per 100 milliliters in boiling water; dissolution of the anhydrous form is a violently exothermic process that liberates substantial enthalpy, causing the solution temperature to spike rapidly); freely soluble in ethanol and methanol; practically insoluble in diethyl ether.
Key Use: Universally utilized as a classical, high-capacity desiccant and drying agent in laboratory desiccators, drying towers, and moisture traps (such as U-tubes) to protect moisture-sensitive reaction pathways and chemical reagents from ambient atmospheric humidity. Extensively applied for the drying and dehydration of organic liquids and volatile solvents, including aliphatic/aromatic hydrocarbons, ethers, and alkyl halides (incompatible with alcohols, amines, and phenols due to adduct complex formation). Heavily employed for drying inert and acidic process gases, such as nitrogen, oxygen, hydrogen, carbon dioxide, and hydrogen chloride. Used in preparing specialized laboratory freezing and cooling baths (formulated with crushed ice) capable of depressing bath temperatures down to minus 50 degrees Celsius. Serves as a high-purity anhydrous inorganic calcium precursor in materials science, synthetic chemistry, and polymer formulations.

Safety & Hazards (Serious Eye Irritation & Violent Exothermic Dissolution)

Classification: Causes serious eye irritation (Eye Irritation Category 2). May cause mild skin and respiratory tract irritation.
Health Risks: Direct ocular contact triggers acute burning pain, intense conjunctival erythema, corneal irritation, edema, and profuse lacrimation. Prolonged dermal contact draws cellular moisture and releases hydration enthalpy, inducing localized erythema, dryness, cracking, superficial irritation, or localized thermal/chemical burns. Inhalation of airborne dust irritates the mucous membranes of the respiratory tract, provoking coughing, sneezing, choking, and nasal discomfort. Ingestion induces immediate exothermic burning of the oral cavity, esophagus, and stomach, accompanied by severe abdominal cramping, nausea, vomiting, diarrhea, and intense dehydration thirst.
First Aid Measures: Immediately flush affected eyes with an abundant stream of clean flowing water for at least 15 to 20 minutes while stripping contaminated clothing; remove contact lenses promptly and seek immediate ophthalmological attention if irritation persists. Wash exposed skin thoroughly with soap and water after brushing off loose granules. In case of dust inhalation, relocate the individual to fresh air. If accidentally swallowed, do NOT induce vomiting; thoroughly rinse mouth, administer abundant quantities of cold water immediately to dissipate heat and dilute the salt, and seek prompt medical attention.

Handling & Storage

Storage: Extremely Deliquescent Solid and Strong Exothermic Hazard. Ambient atmospheric exposure triggers rapid liquefaction into brine and rapid depletion of desiccant efficacy. 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 humidity and direct sunlight. Keep strictly segregated from concentrated sulfuric acid (violent reaction precipitating calcium sulfate with evolution of toxic hydrogen chloride gas), water, bromine trifluoride, and active phosphorus compounds.
Precautions: Standard laboratory PPE is mandatory, including protective nitrile gloves, splash-proof safety goggles, a certified particulate dust mask, and a protective lab coat. “Critical Dissolution Protocol: When preparing aqueous solutions, always add anhydrous calcium chloride granules slowly to water with continuous stirring. NEVER pour water directly onto a bulk mass of anhydrous granules, as violent localized boiling and caustic thermal spattering will occur.” Re-seal container cap tightly immediately after sampling. Minimize dust generation during weighing and dispensing.