Calcium Hydroxide BP Grade (commonly is slaked lime or hydrated lime) is a high-purity, pharmaceutical-grade inorganic compound manufactured to meet the strict quality standards of the British Pharmacopoeia (BP). It is widely utilized across medical, pharmaceutical, and dental applications due to its strict control over impurities and consistent alkalinity.

Key Features & Properties

Chemical Formula: Ca(OH)_2

Appearance: A fine, odorless, white or almost white powder free from coarse grits and foreign contaminants.

High Purity: Meets pharmaceutical criteria (typically ranging from 95% to over 99% assay purity) with tightly regulated thresholds for heavy metals, arsenic, and chlorides.

Strong Alkalinity: Produces a strongly alkaline aqueous solution (with a saturated pH of roughly 12.4), providing powerful antimicrobial properties

Solubility: Slightly soluble in cold water, with solubility decreasing as temperature rises; more soluble in glycerol and acids.

Common Applications

Pharmaceutical & Medical: Used as an ingredient in antacids, topical lotions, and specific pharmaceutical preparations.

Dentistry & Endodontics: Frequently used as a base material or temporary root canal medicament because its high alkalinity helps neutralize acids, combat bacterial infection, and stimulate hard tissue formation (such as in apexification or pulp capping procedures).