Whatman Grade 42 Quantitative Filter Paper Ashless (Ash 0.007%), circle,100/pk

  • Brand: Whatman

  • Product Code: 28418042 1442-090

  • Availability: 10

  • Seller: TechnoConcept India Pvt. Ltd.

  • Delivery: Dispatch will be made in 7-10 days

Price: ₹2,189.00

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Features :

A world standard for critical gravimetric analysis with the finest particle retention of all Whatman cellulose filter papers from GE Healthcare.

Ashless: 0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades. These are very pure filters suitable for a wide range of critical analytical filtration procedures.
Whatman quantitative filters from GE Healthcare are designed for gravimetric analysis and the preparation of samples for instrumental analysis. They are available in three formats designed to meet specific needs.

Grade 42: 2.5 µm

Typical analytical precipitates include barium sulfate, metastannic acid, and finely precipitated calcium carbonate.

Specifications :

*You can choose from a variety of options as per your needs. Specifications w.r.t each product are mentioned below :

 Model No.   Diameter  Packaging
 28418042 1442-090  90 mm  100/pk
 28418043 1442-110  110 mm  100/pk
 28418044 1442-125  125 mm  100/pk
 28418045 1442-150  150 mm  100/pk

Common Specifications :

 Format  Circles
 Grade  Grade 421)
 Type  Ashless
 Typical Thickness  200 µm
 Basis Weight   100 g/m2
 Filtration Speed (Herzberg)  1870 s
 Air Flow Rate  107 s/100 ml/in2
 Ash Content  0.007%2)
 Tensile M/D Dry  55.8 N/15 mm
 Material  High - Quality cotton linters
 Alpha Cellulose Content Min.      0.98%
 Trace Elements  Aluminum: 2 µg/g 
 Antimony: <0.02 µg/g 
 Arsenic: <0.02 µg/g 
 Barium: <1 µg/g 
 Boron: 1 µg/g
 Bromine: 1 µg/g 
 Calcium: 13 µg/g
 Chlorine: 80 µg/g 
 Chromium: 0.3 µg/g
 Copper: 0.3 µg/g 
 Fluorine: 0.2 µg/g 
 Iron: 6 µg/g 
 Lead: 0.2 µg/g 
 Magnesium: 1.8 µg/g 
 Manganese: 0.05 µg/g 
 Mercury: <0.005 µg/g
 Nitrogen: 12 µg/g 
 Potassium: 1.5 µg/g 
 Silicon: <2 µg/g
 Sodium: 33 µg/g 
 Sulfur: <5 µg/g 
 Zinc: 0.6 µg/g

 

 

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