Glass Weighing Bottle

The Glass Weighing Bottle is a laboratory container used for holding and accurately weighing small samples during analytical and gravimetric procedures. It is intended for chemistry, pharmaceutical, research, quality-control, college, and university laboratories where samples must be contained during weighing and protected from unnecessary contamination or atmospheric exposure.

Product Description

The STEMAids Glass Weighing Bottle is intended for precision sample handling with an analytical or laboratory balance. Weighing bottles are commonly used for solids, powders, crystals, and other compatible samples that need to remain contained before, during, or after mass determination.

A fitted glass lid or stopper can help reduce exposure to dust and atmospheric moisture, making this type of vessel useful when working with hygroscopic materials. Exact STEMAids capacity, glass grade, tall or low-form configuration, stopper type, dimensions, and thermal specification are . Related products are available under Laboratory Glassware and General Lab Products.

Key Features

• Designed for analytical weighing: Provides a contained vessel for accurate mass determination of compatible samples.
• Useful for hygroscopic materials: A fitted closure can reduce unnecessary exposure to atmospheric moisture during handling.
• Supports weighing by difference: Suitable for procedures in which sample mass is determined from successive weighings.
• Clear glass construction: Allows direct observation of the contained sample.
• Reusable laboratory format: Can be cleaned and reused when compatible with the sample and confirmed glass specification.
• Suitable for gravimetric workflows: Supports sample drying, storage, or transfer where permitted by the analytical method.
• Critical specifications: Capacity, glass grade, stopper design, dimensions, and thermal limits are .

Technical Specifications

What’s Included in the Kit

• Glass Weighing Bottle
• Matching glass lid or stopper
• Protective packaging or storage case
• Additional accessories 

Applications / Uses

• Accurate weighing of powders, crystals, and compatible solid samples.
• Handling hygroscopic samples during analytical weighing.
• Weighing by difference in quantitative chemistry.
• Gravimetric analysis and moisture-determination procedures where specified.
• Temporary containment of prepared analytical samples.
• Teaching analytical balance technique in chemistry laboratories.

How to Use the Glass Weighing Bottle

1. Clean and dry the weighing bottle and its lid or stopper thoroughly.
2. Allow the bottle to reach the required laboratory temperature before precision weighing.
3. Place the empty bottle on the balance and record or tare its mass according to the analytical method.
4. Add the required sample without contaminating the outside of the bottle.
5. Fit the lid or stopper when sample protection is required.
6. Record the filled mass using a suitable analytical balance.
7. For weighing by difference, transfer the required quantity and reweigh the bottle to determine the mass delivered.

Safety note: Handle the bottle and stopper carefully and inspect both for chips or cracks before use. Do not place the bottle in an oven, desiccator heating process, or other elevated-temperature application unless the confirmed glass specification and analytical method permit it.

Care & Maintenance

• Clean the bottle promptly after use to prevent residues from affecting later measurements.
• Keep ground or mating surfaces clean so the lid or stopper seats correctly.
• Allow washed glassware to dry completely before analytical weighing.
• Store the bottle and its matching closure together in a protected location.

Why Choose STEMAids

STEMAids supplies scientific laboratory instruments, laboratory glassware, educational apparatus, science kits, and STEM learning products for institutional users. Its product range supports practical laboratory work in schools, colleges, universities, and other scientific facilities. Buyers can also explore Chemistry Lab Equipments, Lab Experiment Practice Kits, and the complete STEMAids product catalogue.

Frequently Asked Questions

What is a Glass Weighing Bottle used for?

A Glass Weighing Bottle is used to contain small samples during accurate laboratory weighing, particularly in analytical chemistry and gravimetric procedures.

Why does a weighing bottle have a lid or stopper?

The closure helps protect the sample from contamination and unnecessary atmospheric exposure. This is particularly useful for substances that can absorb moisture from the air.

Can a weighing bottle be used for hygroscopic chemicals?

Yes. Weighing bottles are commonly used when handling hygroscopic solids because the closure can limit moisture uptake during transfer and weighing.

What is weighing by difference?

Weighing by difference determines the mass transferred by weighing the bottle before and after sample removal. The difference between the two masses equals the quantity delivered.

What glass is the STEMAids Glass Weighing Bottle made from?

The product is made from glass, but the exact glass grade is . Borosilicate 3.3 or another specific composition should not be claimed until verified.

Can the STEMAids weighing bottle be heated in an oven?

Thermal compatibility is . Do not specify an oven temperature or heating capability until the glass grade and manufacturer’s operating limits are verified.