Specifications Table

Product Name – Whatman Cellulose Filter Paper Grade 113

Quantity/Pack Size – 9cm (Pack of 100), 11cm (Pack of 100), 12.5cm (Pack of 100), 15cm (Pack of 100), 18.5cm (Pack of 100), 24cm (Pack of 100), 32cm (Pack of 100), 50cm (Pack of 100), 46x57cm (Pack of 100)

Form – Circular sheets

Grade – 113 (Medium retention, high wet strength)

Application – General lab filtration, particle retention, qualitative analysis

Product Overview

Whatman Grade 113 cellulose filter paper is engineered for reliable performance in laboratory filtration tasks requiring medium particle retention and high wet strength. Composed of 100% pure cellulose fibers, this grade offers consistent flow rates and mechanical stability even under demanding conditions. The medium retention capability (approximately 25-30 cm) makes it ideal for applications where both fine and coarse particles need to be captured without sacrificing filtration speed. Its high wet strength ensures durability during prolonged use or when handling aggressive solvents, while the chemical purity guarantees no interference with analytical results. The uniform thickness and smooth surface minimize fiber shedding, reducing contamination risks in sensitive procedures. Available in multiple diameters, this filter paper adapts to various filtration setups, from standard funnels to specialized apparatus. Its compatibility with a wide pH range (0-12) and resistance to most organic solvents make it a versatile choice for diverse laboratory protocols. The pre-cut circular format eliminates preparation time, while the consistent quality across batches ensures reproducible results. Whether used for routine sample clarification or critical qualitative analysis, Whatman Grade 113 delivers the balance of retention efficiency and flow rate that researchers demand.

FAQs

1. What is the particle retention range for Whatman Grade 113 filter paper?

The particle retention for Grade 113 filter paper is approximately 25-30 cm, making it suitable for medium retention applications.

2. Can this filter paper be used with organic solvents?

Yes, Grade 113 is compatible with most organic solvents and maintains its integrity across a wide pH range of 0-12.

3. How does the wet strength of Grade 113 compare to other Whatman grades?

Grade 113 offers higher wet strength than standard qualitative grades, making it more durable for prolonged filtration tasks.

4. What is the typical flow rate for this filter paper?

The flow rate is moderate, balancing retention efficiency with reasonable filtration speed for most laboratory applications.

5. Are these filter papers pre-sterilized?

No, these are not pre-sterilized but can be autoclaved if sterile conditions are required for your application.