Specifications

Narrow-Mouth Reagent Bottle · Specifications

Below are our standard capacity options. For custom capacities or special requirements, please contact our sales team.

Capacity (mL)	Neck I.D. (mm)	Body O.D. (mm)	Height (mm)	Material
Please contact us to confirm the available specifications.

* Custom capacities and special specifications are available upon request.
* Standard configuration is soda‑lime glass. Borosilicate glass 3.3 is available as an upgrade — please specify when ordering.

Product Description

The Narrow-Mouth Reagent Bottle is the standard container for liquid reagent storage in laboratories, manufactured from soda‑lime glass (borosilicate glass 3.3 optional). The narrow mouth design effectively reduces evaporation and contamination, while the ground glass stopper provides a secure seal, ensuring long‑term reagent stability.

Key Features

Soda‑lime glass (standard): Good chemical stability, moderate thermal expansion coefficient — cost‑effective for routine laboratory use
Borosilicate glass 3.3 (optional): ISO 3585 compliant, extremely low thermal expansion (3.3×10⁻⁶/K), thermal shock resistant to 280°C — ideal for autoclaving and demanding applications
Narrow mouth design: Smaller inner diameter reduces evaporation — ideal for long‑term liquid reagent storage
Ground glass stopper: Precision‑ground fit ensures an airtight seal, preventing evaporation and contamination
High clarity: Pure, transparent glass allows easy visual inspection of contents and liquid level
Chemical resistant: Excellent resistance to most acids, alkalis, and organic solvents

Quality Assurance

Every bottle undergoes rigorous dimensional inspection, seal integrity testing, and visual examination to meet the high standards required in professional laboratories.

Note: Standard configuration is soda‑lime glass. Borosilicate glass 3.3 is available upon request. When storing strong alkaline solutions, we recommend using a rubber stopper to prevent the glass stopper from seizing.

Applications

Typical Uses

Chemistry labs

Storage of inorganic reagents, organic solvents, and standard solutions

Pharmaceutical industry

Storage and dispensing of APIs, intermediates, and reagents

Biology labs

Storage of buffers, media, and staining solutions

Educational labs

Storage of common reagents for university and high school chemistry labs

Food testing

Storage of food additives and standard materials

Compatibility Recommendations

Bottle + Glass Stopper

Ideal for most liquid reagent storage applications

Bottle + Rubber Stopper

Recommended for strong alkaline solutions to prevent glass stopper seizing

Bottle + Label

We recommend using reagent labels for easy identification and inventory management

Tip: Use narrow‑mouth and wide‑mouth reagent bottles together to cover all your solid and liquid reagent storage needs. For applications requiring higher thermal and chemical resistance, we recommend choosing borosilicate glass 3.3.

Operation & Maintenance

Reagent Bottle User Guide

Before Use

Inspect for cracks, chips, or scratches before use
Ensure the bottle is clean and dry to prevent contamination of reagents
Verify that the stopper fits properly — no wobble or sticking
Select the appropriate stopper type (glass/rubber) based on your reagent

Storage Procedure

Pour reagent slowly down the inner wall to avoid splashing
Fill to no more than 80% capacity to allow for expansion and handling
Gently rotate the stopper to ensure a snug, secure seal
Wipe the exterior clean and apply a reagent label (name, concentration, date, etc.)
Store in a cool, dry, well‑ventilated area away from direct sunlight

Cleaning & Maintenance

Clean promptly after use to prevent residue from hardening
For routine cleaning, use detergent with a bottle brush, rinse 3× with distilled water
For stubborn residues, soak in dilute acid or specialty cleaning solution
Allow to air‑dry inverted on a draining rack
For long‑term storage, place a small piece of paper between the stopper and the neck to prevent seizing

Care & Notes

Show care & notes

Safety Notice

Always inspect for cracks or damage before use — damaged bottles may break during use
For strong alkaline solutions, use rubber stoppers to prevent glass‑to‑glass seizing
For hydrofluoric acid and other specialty reagents, confirm material compatibility before use

Do not

Do not place reagent bottles directly on hot plates or open flames
Handle with care — avoid impact and rough handling

Narrow-Mouth Reagent Bottle

Specifications