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Cytiva Carte da filtro quantitative senza ceneri
Per filtrazioni analitiche critiche. Le carte quantitative Cytiva Whatman™ sono temprate con acido, per ridurre le ceneri a un livello estremamente basso.
Marca: Cytiva 1540-125
62.23 EUR valido fino al 2024-12-31
Usa il codice promo "23266" per avere il tuo prezzo promozionale.
Dettagli aggiuntivi : Peso : 0.11880kg
Descrizione
Use as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. Whatman™ Quantitative Filter Paper: Grade 540 Circles acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.
Whatman hardened ashless quantitative filter papers are acid-hardened to give high wet strength and chemical resistance with extremely low ash content. They are suitable for a wide range of critical filtration procedures.- High-purity, acid-treated cellulose lab filter paper
- Mechanically strong
- Well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples
- Extremely low ash content (0.006% ash maximum)
- Nominal particle retention of 8 μm
- Medium flow rate (Herzberg filtration speed 200 s)
Specifica
13 s/100 mL/in2 | |
Disc | |
>8 μmm | |
Analisi gravimetrica di metalli in soluzioni di acidi/alcali. Prelievo di idrossidi dopo precipitazione con alcali forti. Carico normale; elevata resistenza all'umidità. | |
Medio | |
160 μm | |
4.92 in. |
Grade 540 Ashless General Lab Filter Paper, 125 mm circles (100 pcs) | |
Cotton Linters | |
ASTM, 55 secondi; Herzberg, 200 secondi | |
Grade 540 | |
100/conf. | |
Hardened Ashless | |
12.5 cm |