GR 50 15x23cm 100/Pk SKU: 1450-916

Quantitative Hardened Filter Paper - 1450-916

Precipitate collection from aggressive chemical matrices requires hardened cellulose that outlasts the reagent contact time specified in analytical methods. Surface hardening treatment produces a chemically resistant cellulose matrix that withstands concentrated acids, bases, and hot reagents. As designed, quality-controlled production produces filter paper with the documented consistency that reproducible analytical and preparative methods demand.

Key Filter Paper Characteristics

• Hardened fiber matrix withstands the mechanical stresses of scraping, folding, and transferring collected precipitates.
• Maintains structural integrity through prolonged exposure to concentrated reagents that would compromise untreated cellulose papers.
• Chemical hardening extends the usable service life of the paper during long-duration filtration runs with aggressive solutions.
• Extended chemical durability enables multi-hour filtration procedures where reagent contact time exceeds standard paper limits.
• Hardened cellulose construction resists degradation during extended contact with strong acids, bases, and hot analytical reagents.

If your teaching or research laboratory processes high volumes of routine samples, the documented flow rates above translate directly to throughput. To that end, surface-hardened construction maintains wet integrity through the prolonged washing cycles your precipitate purification requires. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Dimensions

150 x 230mm

Flow Speed

Slow

Folded/ Fluted/ Pleated

No

Grade

50

Hardened (Yes/ No)

Yes

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.015%

Nominal Basis Weight (g/ m²)

115g/m²

Pack Count

100

Particle Retention

2.7um

Pore Size (µm)

2.7

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Fuming Acid Procedures - Survives concentrated sulfuric and nitric acid contact during classical inorganic analytical preparations.
• Geochemical Digestion - Resists chemical attack during multi-acid dissolution procedures for mineral and ore characterization.
• Caustic Reagent Recovery - Maintains integrity during filtration of strong base solutions in industrial chemical analysis procedures.
• Hot Acid Filtration - Withstands boiling acid washes during precipitate purification without paper degradation or fiber release.
• Chromium Gravimetry - Maintains integrity during chromic oxide collection procedures in leather and wastewater analytical methods.
• Metal Alloy Analysis - Withstands the aggressive dissolution chemistry required for accurate composition analysis of alloy samples.