VWR® Quantitative Filter Papers, Low Ash

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Specifications:
Application Filtration, Analytical Chemistry
Storage Temperature Room Temperature
Product Type Filter Papers
Product Brand VWR
Product Grade Analytical grade

VWR® Quantitative Filter Papers are high-purity, ashless filtration media specifically designed for gravimetric and quantitative analytical applications requiring precise and reproducible results. Manufactured from refined cellulose fibers under stringent quality control, these filter papers exhibit extremely low ash content, ensuring minimal residue after ignition and making them ideal for analytical chemistry workflows.

Engineered for high retention efficiency and consistent flow characteristics, VWR quantitative grades support accurate determination of inorganic compounds, trace elements, and insoluble residues across pharmaceutical, food, environmental, and industrial laboratories.

With a range of grades tailored for fine, medium, and coarse precipitates, these filter papers provide reliable performance in demanding analytical procedures.

Key Features

  • Ashless (Low Residue) Performance
    Suitable for gravimetric analysis where minimal ash content is critical.
  • High-Purity Cellulose Composition
    Ensures consistent filtration and chemical compatibility.
  • Excellent Particle Retention
    Designed for precise separation of fine, medium, and gelatinous precipitates.
  • Reproducible Analytical Results
    Supports quantitative determination of analytes with high accuracy.
  • Wide Range of Grades
    Optimized for specific applications from very fine precipitates to coarse materials.
  • Uniform Structure and Strength
    Maintains integrity during filtration and handling.

Grade Selection Guide

GradeFiltration SpeedRetention LevelTypical Applications
424MediumMediumSulphides, food analysis, dairy sand content, pulp whiteness
434SlowFineVery fine precipitates, oils, greases, trace impurity analysis
454FastCoarse/GelatinousZirconium hydroxide, aluminium hydroxide, gelatinous precipitates
474MediumGeneralRoutine quantitative analysis, inorganic precipitates

Applications

Analytical & Gravimetric Chemistry

  • Determination of sulphides and heavy metals
  • Quantification of inorganic precipitates
  • Gravimetric residue analysis

Food & Dairy Analysis

  • Determination of sand content in dairy products
  • Analysis of food contaminants

Pharmaceutical & Industrial Testing

  • Analysis of impurities in oils, greases, and chemicals
  • Filtration of fine and gelatinous precipitates

Pulp & Paper Industry

  • Determination of pulp whiteness
  • Quality control analysis

Technical Specifications

ParameterSpecification
MaterialHigh-purity cellulose
Ash ContentVery low (ashless grade)
Filtration TypeQuantitative
FormatCircular filter papers
RetentionGrade dependent (fine to coarse)
ApplicationsGravimetric and analytical chemistry

Ordering Information

Catalog No.GradeSizePurpose / Use
516-026442470 mmFiltration of sulphides, food analysis, dairy sand content determination
516-026542490 mmFiltration of sulphides and routine quantitative analysis
516-0266424110 mmMedium retention filtration for analytical chemistry
516-0267424125 mmGeneral quantitative filtration of inorganic compounds
516-0268424150 mmFood and dairy testing applications
516-0269424185 mmLarge-scale filtration for sulphides and precipitates
516-027043470 mmFine filtration of very small precipitates
516-027143490 mmAnalysis of fine precipitates in chemical samples
516-0272434110 mmFine filtration for oils, greases, and trace impurities
516-0273434125 mmQuantitative analysis of very fine particles
516-0274434150 mmDetermination of insoluble impurities in oils and greases
516-0275434185 mmLarge-volume fine filtration applications
516-084747490 mmGeneral quantitative analysis of inorganic precipitates
516-0848474110 mmRoutine analytical laboratory filtration
516-0849474125 mmGeneral-purpose quantitative filtration
516-0850474150 mmFiltration of aluminium phosphate and related compounds
516-0263474185 mmLarge-scale quantitative filtration
516-085345490 mmFiltration of coarse and gelatinous precipitates
516-0854454110 mmRapid filtration of metal hydroxides
516-0855454125 mmFiltration of zirconium and aluminium hydroxides
516-0856454150 mmCoarse filtration for gelatinous precipitates
516-0857454185 mmHigh-volume filtration of bulky precipitates

Unique Advantages

  • Ideal for Gravimetric Analysis
    Ensures accurate quantitative results with minimal ash residue.
  • Comprehensive Grade Coverage
    Supports a wide range of analytical applications from fine to coarse filtration.
  • High Analytical Reliability
    Designed for reproducibility in regulated laboratory environments.
  • Broad Industry Application
    Suitable for food, pharmaceutical, environmental, and industrial testing.

VWR® Quantitative Filter Papers provide a precise and reliable solution for laboratories performing gravimetric and analytical procedures. With their ashless composition, excellent retention characteristics, and broad grade selection, they ensure accurate and reproducible results across a wide range of scientific applications.

  • Grade:   Grade 424 Grade 434 Grade 474 Grade 454
  • Diameter:   Ø 90mm Ø 110mm Ø 125mm Ø 150mm Ø 185mm Ø 70 mm

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