WHA1450185

Whatman^® quantitative filter paper, hardened low-ash, Grade 50

circles, diam. 185 mm, pack of 100

• Synonym(s): Whatman filter, Z241792, filter paper, paper filter
• NACRES: NB.24

Properties

• material: circles ; cotton filters (high-quality cotton linters)
• embalagem: pack of 100
• manufacturer/tradename: Whatman 1450-185; Whatman Article No. 28418085 (US reference)
• parâmetro: 2685 sec/100 mL speed (Herzberg); 6 psi wet burst
• diâmetro: 185 mm
• espessura: 0.12115 μm
• cinzas: ≤0.015%
• tamanho de poro: 2.7 μm (Particle retention)
• peso base: 97 g/m²

Description

Descrição geral

The maximum ash content of these filter paper grades is intermediate between ashless and qualitative grades. They are particularly suitable for Büchner filtrations where it is desirable to recover the precipitate from the filter surface after filtration. Other characteristics include high wet strength and chemical resistance which are similar to the acid hardened ashless filter papers.

Grade 50: 2.7 μm (slow filter paper)
Retention of very fine crystalline precipitates. The thinnest of all Whatman filter papers. Slow flow rate. Hardened and highly glazed surface. This finish also keeps the paper free from loose surface fibers. Highly suitable for qualitative or quantitative filtrations requiring vacuum assistance on Büchner or 3-piece filter funnels. Very strong when wet. Will withstand wet handling and precipitate removal by scraping. In the electronics industry, the virtual absence of fiber shedding is utilized in carriers for integrated circuits.

Outras notas

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

Informações legais

Whatman is a registered trademark of Cytiva