Overview
Reagent bottles are fundamental laboratory containers designed for the safe storage and handling of chemicals. They are typically made from borosilicate glass or chemically resistant plastics like polyethylene (PE) or polypropylene (PP). These bottles feature airtight closures, such as screw caps or ground-glass stoppers, to prevent contamination and evaporation. Amber-colored reagent bottles are preferred for light-sensitive substances, while clear bottles are used for general purposes. Standard sizes range from small 100mL bottles to large 20L carboys, catering to diverse laboratory needs.
Physical and Chemical Properties
Borosilicate glass reagent bottles offer excellent thermal and chemical resistance, withstanding temperatures up to 400°C and resisting acids, bases, and organic solvents. Plastic variants, though lighter and shatterproof, have lower temperature tolerance (e.g., PP withstands ~120°C). Durability is a key consideration; glass bottles are prone to breakage but provide superior inertness, while plastic bottles are safer for transport but may absorb certain solvents. The choice depends on the chemical’s properties and storage conditions.
Main Applications
Reagent bottles are ubiquitous in laboratories for storing acids (e.g., HCl, HNO3), bases (e.g., NaOH), solvents (e.g., acetone, ethanol), and buffers. Amber bottles protect photosensitive reagents like silver nitrate or vitamin solutions. They are also used in pharmaceutical, educational, and industrial settings for sample preservation and waste collection. Specialty designs, such as Boston round bottles with narrow necks, facilitate controlled pouring and reduce spillage.
Safety and Storage
Proper storage involves labeling bottles with contents, concentration, and hazard symbols. Corrosive chemicals require vented caps to release gas pressure. Glass bottles should be inspected for cracks, and plastic bottles checked for swelling or degradation. For volatile substances, use bottles with PTFE-lined caps to minimize permeation. Always store incompatible chemicals separately (e.g., acids away from bases) and follow OSHA or local safety regulations.
B2B Procurement Guide
When sourcing reagent bottles, prioritize suppliers with ISO 9001 or ISO 4797 certifications for quality assurance. Bulk purchases (e.g., cases of 12–24 bottles) often reduce costs by 10–20%. For hazardous chemicals, verify UN-certified packaging options. Key selection criteria include chemical compatibility, volume requirements, and closure type. Consider eco-friendly options like reusable glass bottles for sustainability. Request samples to test cap seal integrity before large orders.
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