Benzalkonium chloride is hygroscopic and may be affected by light, air, and metals.
Solutions are stable over a wide pH and temperature range and may be sterilized by autoclaving without loss of effectiveness.
Solutions may be stored for prolonged periods at room temperature. Dilute solutions stored in polyvinyl chloride or polyurethane foam containers may lose antimicrobial activity.
The bulk material should be stored in an airtight container, protected from light and contact with metals, in a cool, dry place.
