Grade 44 Ashless Filter Paper, Thin, Circle
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Sale:
$43.15
100
/ Pack
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Description
Cytiva's Whatman Grade 44 quantitative paper is a thin version of Grade 42 ashless paper. The thinness reduces the overall ash content, making Grade 44 well-suited for analyses relying on the ash-free dry weight.
Cytiva's business offers other ashless grades with different particle retention ratings, as well as hardened ashless grades to ensure accurate measurement during analyses of samples that are strongly acidic/alkali.
Fast gravimetric analysis of fine particles
Gravimetric analysis can be time-consuming when filtration of fine particles is required. Because of its reduced thickness, Grade 44 ashless filter paper from Cytiva provides faster filtration of fine particles when compared with thicker papers of similar retention rating, such as Whatman Grade 42 paper.
Features
- Accurate ash-free dry mass measurements.
- Fine nominal particle retention rating of 3 µm.
- Filtration speed (Herzberg 995 s).
- Typical thickness of 180 µm.
Product Specifications
| Manufacturer Part 1444-070: | Diameter 70 mm |
|---|---|
| Manufacturer Part 1444-090: | Diameter 90 mm |
| Manufacturer Part 1444-110: | Diameter 110 mm |
| Manufacturer Part 1444-125: | Diameter 125 mm |
| Manufacturer Part 1444-150: | Diameter 150 mm |
| Manufacturer Part 1444-185: | Diameter 185 mm |
| Manufacturer Part 1444-240: | Diameter 240 mm |
| Grade: | 44 |
| Shape: | Circle |
| Type: | Ashless |
|---|---|
| Typical Particle Retention in Liquid: | 3 µm |
| Nominal thickness: | 176 µm |
| Typical water flow rate: | 11 ml/min |
| Nominal basis weight: | 80 g/m² |
| Nominal air flow rate: | 56 s/100 mL/in² |
| Nominal Ash Content: | 0.007% |
| Material: | High-quality cotton linters |
| Alpha Cellulose Content Min: | ≥98% |
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