Specifications

Below are standard specifications for plastic reagent bottles (narrow mouth). Items marked Customizable are available upon request.

Request custom specs

Capacity (ml)	Material	Height (mm)	Bottom Dia. (mm)	Neck Dia. (mm)	Color
10	HDPE	45	24	21	White/Translucent/Amber
20	HDPE	57	28	21	White/Translucent/Amber
30	HDPE	63	32	21	White/Translucent/Amber
50	HDPE	75	37	21	White/Translucent/Amber
60	HDPE	78	38	21	White/Translucent/Amber
100	HDPE	100	45	21	White/Translucent/Amber
250	HDPE	136	61	30	White/Translucent/Amber
500	HDPE	169	77	30	White/Translucent/Amber
1000	HDPE	216	94	30	White/Translucent/Amber
2000	HDPE	305	110	30	White/Translucent/Amber

Dimensions are typical values and may vary slightly by batch.

📌 Customization Notes:
• Material options: HDPE / PP / PFA
• Custom capacities available (10ml~2000ml)
• Color options: white, translucent, amber
• Branding or label area customization available upon consultation

Product Description

I. Overview

The plastic reagent bottle (narrow mouth) is the primary container for liquid reagent storage in the laboratory. Manufactured from high-density polyethylene (HDPE) through precision blow molding, offering excellent chemical resistance, lightweight shatterproof construction, and reliable sealing performance.

The narrow mouth design is the key difference from wide mouth bottles, with neck diameters of 21mm or 30mm (depending on capacity), facilitating precise liquid pouring and dispensing with controlled flow to minimize spills and evaporation. Equipped with a leak-proof sealing cap to ensure sample safety during storage and transport.

Available in a complete range from 10ml micro to 2000ml bulk sizes, ideal for routine storage of liquid reagents, standard solutions, solvents — the preferred choice for liquid sample management in the laboratory.

🔬 Narrow vs Wide Mouth:
Narrow Mouth Bottle — Smaller neck diameter (21mm or 30mm), facilitates precise liquid pouring and dispensing — ideal for liquid reagents.
Wide Mouth Bottle — Larger neck diameter, facilitates powder dispensing, spatula sampling and weighing — ideal for solid reagents and powder samples. Same HDPE material — choose based on material form.

II. Core Performance Parameters

Material: High-density polyethylene (HDPE)
Process: Precision blow molding, uniform wall thickness
Mouth Design: Narrow mouth (21mm or 30mm neck diameter)
Sealing: Leak-proof cap (GL standard thread)
Temperature Range: -20℃ ~ 120℃
Chemical Compatibility: Dilute acids (≤10%), dilute alkalis (≤10%), salt solutions, most organic solvents
Sterilization: Not autoclavable (EtO or γ radiation recommended)

III. Material & Workmanship

Manufactured from imported food-grade HDPE resin through precision blow molding. Uniform wall thickness with narrow mouth design ensuring smooth pouring and perfect cap fit. Thread precision conforms to GL standards for perfect cap compatibility.

All products are assembled and packaged in cleanroom environments to ensure contamination-free surfaces.

Applications

Typical Applications

Liquid Reagent Storage

Aqueous solutions, buffers, salt solutions, acids, alkalis

Standard Solution Preparation

Analytical standards, titration standards

Organic Solvent Storage

Methanol, ethanol, acetone, acetonitrile

Chromatography Mobile Phase

HPLC, GC mobile phase storage

Media Storage

Liquid media, serum

Sample Collection

Environmental water samples, temporary sample collection

Industries

Teaching Labs Chemistry and biology education
Pharmaceutical QC labs, R&D labs
Food Industry Food testing, quality control
Environmental Monitoring Water quality analysis, sample storage
Research Institutions Multi-disciplinary labs

Selection Guide

I. By Material Form

Material Form	Recommended Type	Reason
Liquid reagents	Narrow Mouth Bottle	Precise pouring and flow control
Solid powder/crystals	Wide Mouth Bottle	Easy spatula access
Viscous liquids	Narrow Mouth Bottle	Controlled pouring speed
Volatile solvents	Narrow Mouth Bottle	Smaller opening reduces evaporation

II. By Capacity

10ml / 20ml / 30ml: Micro samples, standards, valuable reagents
50ml / 60ml / 100ml: Routine small-volume reagents, standard solutions
250ml / 500ml: Routine liquid reagents (most common)
1000ml: Bulk stock, mobile phases
2000ml: Large quantity liquid materials, bulk stock

💡 Selection Tip: 500ml narrow mouth bottle is the most commonly used size for routine liquid reagent storage.
For light-sensitive liquid samples, choose amber narrow mouth bottles.
For highly corrosive liquids, choose PFA narrow mouth bottles.

Operation & Maintenance

User Guide

Below are standard operating guidelines for plastic reagent bottles (narrow mouth). Proper use ensures reagent safety and product longevity.

I. Pre-use Preparation

Inspect for cracks, deformation, and cap integrity
Rinse with distilled or deionized water and air dry
Confirm material compatibility with the reagent

II. Storage Operation

Pour the liquid slowly along the bottle wall
Narrow mouth allows precise control of pouring flow
Liquid level should not exceed the shoulder, leaving expansion space
Align the cap with the thread and tighten clockwise to seal
Apply label to the bottle body with reagent name, concentration, preparation date
Store according to reagent requirements (ambient/refrigerated/dark)

III. Cleaning & Maintenance

Rinse promptly after use and air dry
Stubborn residues: use mild neutral detergent, rinse with distilled water
Never use hard brushes or abrasives on the inner wall
Do not store corrosive reagents long-term
Store in a dry, cool place away from direct sunlight

💡 From a Seasoned Lab Technician: "Narrow for liquids, wide for solids" — Narrow mouth bottles are designed for liquids, offering precise pouring with minimal splashing.
"Label the body, not the cap" — Labels belong on the bottle body, not the cap — caps may be swapped or lost.
"Seal to prevent evaporation" — For volatile solvents, seal immediately after use to minimize evaporation and contamination.

Care & Notes

Show care & notes

⚠️ Safety & Compliance Checklist

Chemical Safety

When storing corrosive or volatile liquids, wear protective gloves and safety goggles, operate in a fume hood

Temperature Limit

HDPE ≤ 120℃

Not Autoclavable

HDPE is not autoclavable

Solvent Compatibility

Verify HDPE tolerance for strong organic solvents before use

Plastic Reagent Bottle (Narrow)

Specifications

Product Description

I. Overview

II. Core Performance Parameters

III. Material & Workmanship

Applications

Liquid Reagent Storage

Standard Solution Preparation

Organic Solvent Storage

Chromatography Mobile Phase

Media Storage

Sample Collection

Selection Guide

I. By Material Form

II. By Capacity

User Guide

I. Pre-use Preparation

II. Storage Operation

III. Cleaning & Maintenance

Care & Notes

Chemical Safety

Temperature Limit

Not Autoclavable

Solvent Compatibility

Need Plastic Reagent Bottles (Narrow)?

Plastic Reagent Bottle (Narrow)

Specifications

Product Description

I. Overview

II. Core Performance Parameters

III. Material & Workmanship

Applications

Liquid Reagent Storage

Standard Solution Preparation

Organic Solvent Storage

Chromatography Mobile Phase

Media Storage

Sample Collection

Selection Guide

I. By Material Form

II. By Capacity

User Guide

I. Pre-use Preparation

II. Storage Operation

III. Cleaning & Maintenance

Care & Notes

Chemical Safety

Temperature Limit

Not Autoclavable

Solvent Compatibility

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Need Plastic Reagent Bottles (Narrow)?