Grade 540 Ashless Filter Paper - 125 mm

Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.

Manufacturer: Whatman

Industries: Pharma , FMCG , Academia , Forensics , Environment , Agriculture , Cement & Mining

Product Code: 1540-125

GST: 18.00 %

HSN Code: 48232000

Packaging: 100 circles

UOM: Pack

Delivery date: Within 15 Days

₹ 6,890.00

Qty:

Acid-treated for high wet-strength
Extremely low ash content (0.006% ash maximum)
Nominal particle retention of 8 µm
Medium flow rate (Herzberg filtration speed 200 s)
High chemical resistance to strong acid and alkali suspensions

Gravimetric analysis of acid and alkali suspensions

Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.

Specification:

Parameter	Grade 540 Ashless General Lab Filter Paper, 125 mm circles (100 pcs)
Grade	Grade 540
Format	Circles
Type	Hardened Ashless
Typical Particle Retention in Liquid¹	8 µm
Nominal Thickness	160 µm
Typical water flow rate²	97 ml/min
Nominal Basis Weight	85 g/m²
Nominal Air Flow Rate	13 s/100 mL/in²
Nominal Ash Content³	0.005%
Material	High-quality cotton linters
Alpha Cellulose Content Min.	≥98%
Typical Trace Element Levels	Aluminium 3.4 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 14.7 µg/g Chromium 1.1 µg/g Copper 8.2 µg/g Iron 16.3 µg/g Lead <0.5 µg/g Magnesium 3.3 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 3.7 µg/g Silicon <6 µg/g Sodium 17 µg/g Zinc 87.8 µg/g
Application	Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.
Diameter	125 mm

¹Particle retention rating at 98% efficiency.

²For 9 cm diameter

³Ash is determined by ignition of the cellulose filter at 900°C in air.

Product tags

Grade 540 Ashless Filter Paper - 125 mm

Gravimetric analysis of acid and alkali suspensions

Unlock Exclusive Access to Merck Chemicals’ Latest Price List 2023!

Information

Customer service

My account

Follow us