Glass Slide Storage Jars

Preparing microscope slides for examination means passing them through a sequence of stains, alcohols and clearing agents, and slide jars hold the slides during those steps. Grooves or slots inside the jar keep the slides apart and upright so the reagent bathes both faces evenly — the Coplin jar is the classic small version, with larger staining troughs for batches.

The reagents involved — alcohols, xylene, acid and basic stains — are aggressive, so the jar is made of chemically resistant glass that the chemistry will not attack, and a lid limits evaporation of volatile solvents between steps.

Slide staining (such as haematoxylin and eosin), rinsing and dehydration steps, in histology, cytology, pathology, microscopy preparation, clinical diagnostics, teaching and research, and for archiving prepared slides.

A glass jar with a grooved or slotted interior that separates and supports the slides, in borosilicate or laboratory soda-lime glass, with a ground-glass or screw lid to limit reagent evaporation. The grooves are sized for standard microscope slides; the glass resists staining reagents and solvents.

Place slides in the grooves so reagent reaches both faces, and keep the lid on between steps to limit evaporation of volatile solvents like xylene and alcohol, which should be handled with appropriate ventilation. Dedicate jars to particular reagents to avoid carry-over, and rinse thoroughly between incompatible solutions.

Pressed or formed with the internal grooves that hold the slides, in chemically resistant glass, then annealed. Groove spacing (to fit standard slides) and lid fit (to limit evaporation) are the key checks, along with chemical-grade glass for reagent resistance.