Whatman 4712K30PK Qualitative Filter Paper 110mm 230ml Pack of 100

Description

Product Overview

The Whatman 4712K30PK Grade 3 qualitative filter paper is engineered for demanding laboratory environments where reliability and performance are paramount. Constructed with a double thickness compared to standard No. 1 filter paper, each 110 mm sheet delivers a robust 230 ml capacity, allowing extensive washing and high‑precipitate loads without compromising flow. The paper’s high retentivity captures particles as small as 6 µm, ensuring precise separation and clear filtrates for downstream analysis. Its thick, strong structure resists tearing, making it suitable for use in Buchner funnels, vacuum filtration setups, and as a sample carrier in a variety of qualitative assays. The product is supplied in a convenient pack of 100 sheets, each individually sized for consistent handling and reproducible results across multiple experiments.

Usage

Designed for laboratory professionals, this filter paper excels in applications that demand thorough washing and high precipitate capacity. Researchers conducting qualitative analysis of solid residues will appreciate the paper’s ability to retain fine particles while allowing rapid liquid passage. In microbiology, the filter serves as an effective medium for capturing microbial colonies during filtration of culture media. Environmental testing labs benefit from its high absorbency when filtering water samples for contaminant detection. The paper’s compatibility with standard Buchner funnels and vacuum filtration apparatus ensures seamless integration into existing workflows, reducing setup time and minimizing the need for additional accessories.

When performing gravimetric analysis, the paper’s double thickness prevents clogging, enabling the collection of larger volumes of filtrate without frequent changes. Its high retentivity is also advantageous in precipitation reactions where fine particulate matter must be isolated for weighing or further processing. The 110 mm format provides ample surface area for spreading samples evenly, facilitating uniform drying and accurate mass measurements. Additionally, the filter paper can be employed as a sample carrier in thin‑layer chromatography (TLC) preparative steps, where its absorbent properties help distribute reagents evenly across the plate.

Why Choose Us

Whatman is a globally recognized brand synonymous with quality and innovation in laboratory filtration media. The 4712K30PK filter paper undergoes rigorous quality control processes, ensuring each sheet meets strict standards for thickness, porosity, and particle retention. This consistency translates to reproducible results, a critical factor for researchers who rely on precise data for publications and regulatory submissions. Our manufacturing facilities employ state‑of‑the‑art technology to produce filter paper with uniform pore distribution, guaranteeing reliable performance across all batches.

Beyond product excellence, we provide comprehensive technical support to assist customers in selecting the optimal filtration media for their specific applications. Our knowledgeable service team can offer guidance on protocol optimization, troubleshooting, and best practices for maximizing filter efficiency. We also stand behind our products with a satisfaction guarantee, reflecting our confidence in the durability and performance of the Whatman filter paper line.

Environmental responsibility is integral to our operations. The filter paper is manufactured using sustainable sourcing practices, and the product is fully biodegradable, reducing waste impact in laboratory settings. By choosing Whatman, laboratories not only benefit from superior filtration performance but also contribute to greener scientific practices.

Our commitment to continuous improvement drives ongoing research and development, ensuring that each new generation of filter paper incorporates the latest advancements in material science. This dedication positions Whatman as a trusted partner for laboratories seeking cutting‑edge filtration solutions that evolve with emerging scientific challenges.

Key Features

• Double thickness provides high capacity and reduces clogging during extensive washing.
• 6 µm particle retention ensures precise separation for qualitative analyses.
• 110 mm size fits standard Buchner funnels, simplifying setup and compatibility.
• Highly absorbent surface acts as a reliable sample carrier for diverse laboratory procedures.
• Dedicated technical support and satisfaction guarantee for confident purchasing.

FAQ

What is the maximum volume each sheet can hold?

Each 110 mm sheet can accommodate up to 230 ml of liquid, making it suitable for high‑volume filtrations without the need for frequent sheet changes.

Can this filter paper be used for microbiological applications?

Yes, the paper’s high retentivity and absorbency allow it to capture microorganisms effectively, making it appropriate for filtering culture media and environmental samples.

Is the filter paper compatible with vacuum filtration equipment?

Absolutely. The 110 mm dimensions are designed to fit standard Buchner funnels and vacuum filtration setups, ensuring seamless integration into existing laboratory workflows.

How does the double thickness improve performance?

The double thickness increases structural strength and liquid capacity, reducing the likelihood of tearing and clogging during extensive washing or when filtering precipitates.

What support does Whatman provide after purchase?

Whatman offers technical assistance, protocol optimization guidance, and a satisfaction guarantee, ensuring customers receive reliable performance and responsive service throughout the product’s lifecycle.