Whatman Grade 41 Circles 125 mm

Whatman Grade 41 Circles 125 mm Specification

Color
White

Pore Size
2025 m

Thickness
210 m

Folding
Pre-cut circles

Retention
Coarse particles

Model
Grade 41 circles

Filtration Speed
Fast

Max Operating Temp
120C

Ash Content
<0.007%

Suitable for
Gravimetric analysis

Diameter
125 mm

Pack Size
100 circles

Whatman Grade 41 Circles 125 mm Trade Information

Minimum Order Quantity
1 Pack

FOB Port
Jaipur

Payment Terms
Cash in Advance (CID), Cash Advance (CA), Telegraphic Transfer (T/T)

Supply Ability
100 Packs Per Day

Delivery Time
7 Days

Sample Policy
Contact us for information regarding our sample policy

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

Main Domestic Market
All India

About Whatman Grade 41 Circles 125 mm

Pore size	20-25 m (or 20 m nominal)
Type	Quantitative
Material	High-quality cotton linters
Product Code	1441-125
Country of Origin	Made in India
Filter type	Filter paper
Diameter	125 mm
Grade	41
Brand	WHATMAN

Minimum order quantity: 1 Pack

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.

Exceptional Filtration Speed and Purity

Whatman Grade 41 Circles excel at delivering swift results in gravimetric analysis due to their rapid filtration capabilities and coarse particle retention. The low ash content ensures minimal interference with analytical outcomes, making them a trusted choice for quantitative laboratory work in India and worldwide.

Perfect for Gravimetric Analysis and Laboratory Use

Tailored for demanding analytical applications, these circles are indispensable for labs needing consistent and reproducible filtration. Their ability to handle high temperatures and ease of use-thanks to the pre-cut, ready-to-use format-make them highly practical for a wide range of industries, including environmental testing and academic research.

FAQ's of Whatman Grade 41 Circles 125 mm:

Q: How are Whatman Grade 41 Circles used in gravimetric analysis?

A: They are employed to filter solutions for the collection and weighing of precipitates. Their rapid filtration speed and coarse retention characteristics allow effective separation of solids in gravimetric procedures.

Q: What benefits do these filter papers offer compared to standard filters?

A: These circles provide superior filtration speed, low ash content for minimal residue, and efficient retention of coarse particles. This ensures high accuracy for analytical and quantitative tasks.

Q: When should I use Whatman Grade 41 Circles over finer filters?

A: Choose these circles when filtering large particulates or when quick filtration is desired, particularly in gravimetric analysis where a faster process and minimal filter residue are critical.

Q: Where can I purchase Whatman Grade 41 Circles in India?

A: They are available through authorized distributors, exporters, manufacturers, suppliers, and traders throughout India, specializing in laboratory and analytical products.

Q: What is the filtration process with pre-cut Whatman Grade 41 Circles?

A: Simply place the pre-cut filter circle in your funnel, add the sample, and proceed with filtration. Their thickness and construction promote efficient and even flow, resulting in swift and reliable separation.

Q: Why is the low ash content important in these filter papers?

A: The ash content below 0.007% reduces the possibility of analytic interference after incineration, ensuring highly accurate measurements in gravimetric analysis.

Q: What is the maximum operating temperature for these circles, and why does it matter?

A: These filters operate safely up to 120C, making them suitable for hot filtrations and a wide variety of laboratory applications that require elevated temperatures.

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