Ahlstrom 2370-1250 Qualitative Filter Paper Circle 12.5cm 3µm 50pcs

Description

Product Overview

The Ahlstrom 2370-1250 Qualitative Filter Paper Circle is engineered for high‑precision laboratory filtration tasks. Featuring a 12.5 cm diameter and a uniform 3 µm pore size, this filter paper delivers consistent particle retention while maintaining low resistance to flow. Constructed from untreated cellulose, the paper exhibits a low ash content of just 0.06 %, which minimizes background interference in analytical procedures. Its high wet‑strength ensures the filter retains integrity even when saturated, reducing the risk of tearing or deformation during critical wet‑based assays. The product is supplied in a convenient pack of 50 circles, providing sufficient inventory for routine testing cycles, method development, and quality control protocols. Each sheet is carefully cut to a perfect circle, facilitating easy placement in standard filtration apparatuses and ensuring a tight seal that prevents leakage. The packaging dimensions of 5.16 × 5.16 × 0.98 inches protect the sheets from moisture and physical damage, while the lightweight 5.19‑ounce total weight makes storage and handling straightforward. Designed for compatibility with a wide range of laboratory equipment, this filter paper is a reliable choice for chemists, biologists, and environmental scientists seeking reproducible results.

Usage

Ideal for qualitative analysis in chemistry, biology, and environmental testing, the Ahlstrom 2370-1250 filter paper excels in applications such as precipitation tests, colorimetric assays, and solid‑phase extractions. Its 3 µm pore size captures fine particulates while allowing clear filtrate to pass, making it suitable for visual observation of reaction endpoints and for preparing samples for downstream instrumentation. The circular format fits seamlessly into standard Buchner funnels, vacuum filtration setups, and gravity‑driven filter holders, enabling both rapid throughput and meticulous sample handling. Researchers working with aqueous solutions, organic solvents, or mixed media will appreciate the paper’s high wet‑strength, which prevents disintegration during prolonged filtration periods. Additionally, the low ash composition reduces the likelihood of contaminant introduction, preserving the integrity of sensitive analytical measurements. Whether conducting routine laboratory protocols, educational demonstrations, or field‑based sample preparation, this filter paper provides dependable performance across a broad spectrum of experimental conditions.

Why Choose Us

Choosing the Ahlstrom 2370-1250 filter paper means selecting a product backed by decades of expertise in cellulose‑based filtration media. Ahlstrom’s rigorous manufacturing standards guarantee uniform pore distribution, ensuring that each circle delivers the same filtration efficiency batch after batch. The low ash content is a direct result of a refined production process that eliminates extraneous mineral residues, thereby enhancing analytical clarity. High wet‑strength is achieved through controlled fiber bonding, allowing the paper to withstand the mechanical stresses of vacuum filtration without compromising structural integrity. Our commitment to quality is reflected in the consistent performance metrics reported by laboratories worldwide, as evidenced by the product’s strong ranking among qualitative filter papers. Moreover, we provide comprehensive technical support, including application notes, troubleshooting guides, and responsive customer service, ensuring that users can maximize the value of their purchase. With a pack of 50 circles, laboratories benefit from reduced ordering frequency and lower total cost of ownership, while maintaining a reliable supply of high‑quality filtration media.

Key Features

• Uniform 3 µm pore size delivers precise particle retention for accurate qualitative analysis.
• Low ash content (0.06 %) minimizes background interference, enhancing analytical clarity.
• High wet‑strength prevents tearing or deformation during extended filtration, ensuring reliable performance.
• Convenient 12.5 cm circular format fits standard filtration equipment, simplifying setup and reducing waste.
• Pack of 50 circles provides ample stock for routine testing, reducing reorder frequency and total cost.

FAQ

What types of solvents can be used with this filter paper?

The filter paper is compatible with a wide range of aqueous and organic solvents, including water, ethanol, methanol, and dilute acids or bases commonly used in laboratory protocols.

Can this filter paper be used for quantitative analysis?

While it is optimized for qualitative applications, the consistent pore size and low ash content also make it suitable for certain quantitative assays where high precision is required.

How should the filter paper be stored to maintain its performance?

Store the filter paper in a cool, dry environment away from direct sunlight. The original packaging protects against moisture and contaminants, preserving the paper’s integrity until use.

Is there technical support available for method development?

Yes, Ahlstrom offers technical assistance, including application notes and direct support from filtration experts to help optimize your laboratory methods.

What is the recommended disposal method for used filter paper?

Used filter paper should be disposed of according to your institution’s hazardous waste guidelines, especially if it has been in contact with toxic or biohazardous substances.