ALWSCI 250ml Graduated Glass Storage Bottle Blue GL45 Screw Cap

Description

Product Overview

The ALWSCI 250ml Graduated Glass Storage Bottle is engineered for laboratory environments where precision, durability, and safety are paramount. Constructed from high‑purity 3.3 borosilicate glass, the bottle offers exceptional chemical resistance and thermal stability, allowing it to withstand autoclaving cycles from -198°C to +500°C. Its clear, transparent body provides unobstructed visibility of contents, while the wide‑mouth opening simplifies the addition and removal of liquids, reduces spillage, and facilitates thorough cleaning. The bottle features easy‑to‑read graduation marks etched directly onto the glass, enabling quick volume estimation without the need for external measuring devices. A robust blue GL45 screw cap, made from polypropylene, creates a leak‑proof seal that can tolerate temperatures up to +140°C, ensuring that volatile or sensitive reagents remain securely contained. The 4.0 mm wall thickness exceeds international standards, delivering superior impact resistance and minimizing the risk of breakage during routine handling. Designed for reusability, this bottle supports sustainable laboratory practices while maintaining consistent performance over repeated use.

Usage

This bottle is ideally suited for a broad spectrum of laboratory applications. Researchers handling cell culture media, stem‑cell storage solutions, or bacterial growth fluids will appreciate the wide mouth that accommodates sterile pipettes and dispensing equipment. The precise graduation marks make it an excellent choice for preparing reagent mixtures where exact volumes are critical, such as in high‑performance liquid chromatography (HPLC) solvent preparation or analytical chemistry protocols. Its leak‑proof cap ensures safe transport of hazardous or volatile substances between workstations, while the borosilicate composition tolerates aggressive solvents, acids, and bases without degradation. The bottle’s thermal resilience allows it to be used in cryogenic storage or heated reactions, making it a versatile container for both low‑temperature preservation and high‑temperature synthesis. Laboratories focused on environmental sustainability will benefit from the bottle’s reusability, reducing waste and lowering overall consumable costs. Whether employed in academic research, pharmaceutical development, or industrial quality control, this bottle delivers reliable performance across diverse experimental workflows.

Why Choose Us

Choosing the ALWSCI 250ml Graduated Glass Bottle means selecting a product backed by rigorous quality assurance and a commitment to scientific excellence. Each bottle undergoes a multi‑stage inspection process, including dimensional verification, wall‑thickness uniformity checks, and leak testing of the screw cap to guarantee consistent performance. Our manufacturing facilities adhere to ISO 9001 standards, ensuring that every component meets precise specifications and that traceability is maintained throughout production. The use of premium borosilicate glass not only provides superior chemical inertness but also contributes to a longer service life compared to standard soda‑lime glass containers. We offer responsive technical support, with a dedicated team ready to assist customers in selecting the right bottle configuration, troubleshooting usage issues, and providing guidance on best practices for sterilization and storage. Additionally, our environmentally friendly approach emphasizes reusable glassware, helping laboratories reduce their ecological footprint while maintaining high‑quality standards. When you purchase from ALWSCI, you receive a product that combines durability, accuracy, and thoughtful design—attributes essential for reliable scientific outcomes.

Key Features

• Premium 3.3 borosilicate glass provides exceptional chemical resistance and thermal stability for diverse lab applications.
• Wide‑mouth design enables easy filling, dispensing, and thorough cleaning, reducing the risk of contamination.
• Clear graduation marks allow quick volume estimation without additional measuring tools, improving workflow efficiency.
• Leak‑proof blue GL45 screw cap tolerates high temperatures and ensures secure containment of volatile reagents.
• Comprehensive after‑sales support includes technical assistance, product guidance, and a commitment to sustainable, reusable labware.

FAQ

Can this bottle be autoclaved for sterilization?

Yes, the ALWSCI 250ml bottle is designed to withstand standard autoclave cycles. The borosilicate glass can endure temperatures up to +500°C, and the polypropylene screw cap is rated for up to +140°C. This combination allows you to sterilize the bottle safely without compromising its structural integrity or seal performance. For best results, place the bottle in the autoclave without the cap, then re‑apply the cap after the cycle has completed and the bottle has cooled to room temperature.

Is the bottle compatible with organic solvents?

The high‑purity borosilicate glass used in this bottle offers excellent resistance to a wide range of organic solvents, including ethanol, methanol, acetone, and chloroform. The material does not react with these chemicals, ensuring that the contents remain uncontaminated. However, it is advisable to avoid prolonged exposure to highly aggressive acids or bases that exceed the glass’s chemical resistance limits. Always consult the material safety data sheet (MSDS) for specific solvent compatibility information.

How accurate are the graduation marks for measuring volumes?

The graduation marks are laser‑etched onto the glass surface with a tolerance of ±0.1 ml, providing reliable visual cues for volume estimation. While they are not a substitute for calibrated volumetric equipment in high‑precision analytical work, they are sufficiently accurate for routine preparation of media, reagents, and buffer solutions where exactness within a few percent is acceptable. For critical measurements, you may still wish to verify the volume with a calibrated pipette or balance.

What is the recommended method for cleaning the bottle?

We recommend hand‑washing the bottle with mild detergent and warm water, followed by a thorough rinse to remove any residue. Because the bottle is autoclavable, you can also place it in an autoclave for a final sterilization step. Avoid abrasive scrubbers that could scratch the glass surface or damage the graduation marks. If the bottle has been used with particularly viscous or sticky substances, a soak in a suitable cleaning solution before the autoclave cycle can help ensure complete removal of contaminants.

Can I order this bottle in different colors or sizes?

Yes, the ALWSCI product line offers this bottle in multiple sizes (100 ml, 250 ml, 500 ml, 1000 ml) and cap colors (blue, green, etc.). The SKU information provided includes various size and color combinations, allowing you to select the configuration that best fits your laboratory needs. Contact our sales team or visit the product catalog to explore the full range of options available.