A porcelain crucible with a lid is a specialized laboratory vessel used to heat, melt, or calcine chemical compounds and organic samples at extreme temperatures. It withstands continuous temperatures up to 1050 °C and features a loose-fitting lid to contain splatters while allowing gases to escape.
Key Characteristics and SpecificationsMaterial: Constructed from high-density, laboratory-grade glazed porcelain, providing excellent thermal shock resistance and chemical inertness.Design: Typically cup-shaped, available in “low-form” (wide base) and “high-form” (tall) designs. The interior and exterior (excluding the bottom and rim) are usually glazed to prevent chemical adhesion and make cleaning easy.Sizes & Capacities: Commonly ranges in volume from 5 mL to 300 mL for various analytical tasks.Thermal Limits: Rated for constant use up to 1050 °C, with short-term tolerances reaching up to 1150 °C.Common Uses: Ideal for gravimetric analysis (determining ash content), combustion, melting, and dehydrating chemicals.