Ashless Filter Paper “White Ribbon” – 70mm Diameter

Description: High-quality, ashless filter paper “White Ribbon,” 70mm diameter, ideal for quantitative and qualitative analysis, and distillate purification. This medium-filtration grade boasts a filtration time of under 45 seconds and retains precipitates similar to cold-precipitated lead sulfate. Packaged in quantities of 100 sheets.

Key Features:

• Diameter: 70 mm (other sizes available: 90mm, 110mm, 150mm)
• Type: Medium filtration (White Ribbon)
• Filtration Speed: ≤ 45 seconds
• Retention: Retains precipitates similar to cold-precipitated lead sulfate.
• Ash Content: ≤ 0.00001 – 0.00085 g per filter
• Quantity: 100 sheets per pack
• Material: Made from laboratory filter paper (FB, FS, FM grades per GOST 12026-76) treated with an acid mixture.
• Applications: Quantitative and qualitative analysis, distillate purification.

Performance Characteristics:

Our “White Ribbon” filter papers offer:

• Optimal Filtration Rate: A balance of density and pore size ensures efficient filtration of liquids.
• Superior Retention: Effectively separates various precipitates including: silver sulfide, arsenic, ammonium, cadmium, lead, iron, manganese, lead chromate, alkaline earth metal carbonates, and cold-precipitated lead sulfate.
• Versatile Usage: Suitable for gravimetric and quantitative analysis, and a wide range of chemical and physical processes.
• Ease of Use: Simple and convenient for laboratory use.

Available Grades:

• Slow Filtration (“Blue Ribbon”): Filtration time: 100 seconds; Retains precipitates such as barium sulfate.
• Medium Filtration (“White Ribbon”): Filtration time: ≤ 45 seconds; Retains precipitates similar to cold-precipitated lead sulfate.
• Fast Filtration (“Red Ribbon”): Filtration time: 26 seconds; Retains precipitates similar to hot-precipitated lead sulfate.

Order your ashless filter papers today and experience superior performance in your laboratory!