Whatman Filter Paper Grade 41 ,125 mm

Whatman Filter Paper Grade 41 ,125 mm Specification

Storage Instructions
Store in a cool, dry place away from moisture and direct sunlight

Usage
Laboratory filtration

Molecular Formula
(C H O )

Ph Level
6.0 7.5

Boiling point
Not Applicable

Shelf Life
5 Years

Size
100 Circles per Pack

Flash Point
Cellulose-Based Solid Material

Melting Point
Not Applicable

Packaging Type
Quantitative Ashless Filter Paper

Molecular Weight
Not Applicable Grams (g)

CAS No
1441-125

Purity
0.007%

Density
0.7 0.9 g/cm Gram per cubic centimeter(g/cm3)

Physical State
Solid (Filter Paper Circles)

Grade
41

Type
Scientific Lab Chemicals

Application
Laboratory Filtration & Gravimetric Analysis

Appearance
White, smooth surfaced, circular filter paper disc with uniform thickness and high purity cellulose composition.

Purity(%)
0.007%

Whatman Filter Paper Grade 41 ,125 mm Trade Information

Minimum Order Quantity
1 Box

Payment Terms
Cash in Advance (CID)

Supply Ability
1 Box Per Day

Delivery Time
1 Days

Sample Policy
Contact us for information regarding our sample policy

Packaging Details
BOX

Main Export Market(s)
Western Europe, Middle East, Africa, Asia, Australia, Central America, North America, South America, Eastern Europe

Main Domestic Market
All India

Certifications
Whatman Grade 41 Circles 125 mm

Whatman Filter Paper Grade 41 ,125 mm About

Whatman Grade 41 filter paper circles, 125 mm in diameter, are ashless qualitative filter papers known for their fast filtration speed and suitability for quantitative air and soil pollution analysis. They are designed for analytical procedures involving coarse particles or gelatinous precipitates and can be used for preparing samples for metal analysis after nitric acid digestion. Key characteristics of Whatman Grade 41 circles (125 mm):

Ashless: Made from pure cellulose with extremely low ash content, making them suitable for quantitative analysis.
Fast Filtration: Grade 41 is one of the fastest filter papers in the Whatman ashless range, with a filtration speed of 54 seconds (Herzberg).
Particle Retention: They have a nominal particle retention rating of 20 m.
Applications: Primarily used for routine air and soil pollution analysis, as well as for preparing samples for metal analysis following nitric acid digestion.
Quantitative Analysis: Well-suited for quantitative analysis where high flow rates are needed.

High Precision Gravimetric Analysis

With its quantitative ashless formulation and extremely low ash content, Whatman Grade 41 filter paper is engineered for gravimetric analysis. Its high purity ensures minimal interference with results, making it a preferred choice in laboratory settings that demand rigorous analytical accuracy and reproducibility.

Reliable Performance and Versatility

This filter paper's rapid filtration rate and sturdy build provide versatile usability for various applications, such as laboratory filtration and sample clarification. Its smooth, uniform surface and robust cellulose structure ensure even flow and minimal clogging, delivering reliable and consistent performance.

Long-Term Stability and Safe Storage

To maintain optimum quality, store the filter paper in a cool, dry place, away from moisture and direct sunlight. Proper storage preserves the filter paper's shelf life of up to five years, ensuring it is always ready for use when needed, without risk of deterioration or loss of purity.

FAQ's of Whatman Filter Paper Grade 41 ,125 mm:

Q: How should Whatman Filter Paper Grade 41 be stored for maximum shelf life?

A: Store the filter paper in a cool, dry environment, protected from moisture and direct sunlight. Proper storage conditions help maintain its quality and ensure a shelf life of up to five years.

Q: What is the main benefit of using Grade 41 filter paper in gravimetric analysis?

A: The main advantage is its quantitative ashless characteristic, leaving only 0.007% ash residue, which minimizes interference and ensures highly accurate analytical results.

Q: When is Whatman Grade 41 filter paper most appropriately used?

A: This grade is ideal for situations where rapid filtration and minimal contamination are essential, such as in gravimetric analysis or laboratory filtration processes.

Q: What is the recommended process for using these filter paper discs in laboratory filtration?

A: Simply place the circular disc in the filtration apparatus, wet the filter with distilled water to secure it, and proceed with your filtration as directed by the analysis protocol.

Q: Where can this filter paper be sourced?

A: Whatman Filter Paper Grade 41 is available through scientific laboratory distributors, suppliers, and chemical industry traders worldwide. It can be obtained directly from manufacturers or authorized exporters.

Q: What makes this filter paper suitable for scientific laboratory use?

A: Its high purity cellulose composition, smooth surface, fast filtration rate, and extremely low ash content make it especially reliable and trustworthy for demanding scientific analyses.

Q: How does one benefit from using Grade 41 filter paper over standard filter papers?

A: Grade 41 offers superior purity, consistent performance, and almost negligible ash content, resulting in more precise and reproducible results, essential for high-stakes laboratory work.

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