Whatman Qualitative Filter Paper Grade 540 circle 185 mm
₹16,209.50 + ₹2,917.71 GST
₹19,127.21 (Incl. of all taxes)
Description
Cytiva's 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.
- 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
Cytiva's hardened, ashless 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.
Specifications
|
Grade |
Grade 540 |
|
Format |
Circles |
|
Type |
Hardened Ashless |
|
Typical Particle Retention in Liquid |
8 µm |
|
Nominal thickness |
160 µm |
|
Typical water flow rate at 45 psi (3.1 bar) |
97 ml/min |
|
Nominal basis weight |
85 g/m² |
|
Nominal air flow rate |
13 s/100 mL/in² |
|
Nominal Ash Content |
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 |
185 mm |
| Product Code | 1540-185 |
|---|---|
| HSN Code | 48232000 |
| Brand | Whatman |
| Usually dispatched in | 2-3 weeks |
| Pack Size | 100/PCK |
