Chemdesire Enterprise

Whatman Filter Paper No. 40 – Ashless Filter Paper

We supply Whatman Filter Paper No. 40 (Ashless Grade), a high-quality laboratory filter paper manufactured by Cytiva (formerly GE Healthcare Life Sciences). This grade is specially designed for quantitative analytical techniques and is widely used in laboratories and industries for gravimetric analysis and sample preparation.

Product Details:

• Brand: Whatman

• Grade: No. 40 (Ashless)

• Type: Quantitative filter paper

• Basis Weight: ~85 g/m²

• Thickness: ~0.21 mm

• Pore Size (Retention): ~8 µm

• Ash Content: <0.007% (ashless)

• Diameter / Size Options: Available in multiple diameters (70 mm – 320 mm) and also in sheets

• Format: Circles or sheets

Applications:

• Gravimetric analysis and quantitative chemical analysis

• Soil and seed testing laboratories

• Collection of trace elements and valuable metals in mining samples

• Sample preparation in pharmaceuticals, food, and chemical industries

• Routine laboratory filtration where ashless properties are required

Features:

• Low ash content (<0.007%) ensures no interference in analysis

• High purity and consistent quality

• Suitable for both aqueous and organic samples

• Reliable retention and flow rate balance

We provide genuine Whatman products with proper packaging, competitive prices, and assured timely delivery.

Product Description:
The Merck pH Indicator Paper (pH 2.0 – 10.5) is a high-quality, easy-to-use testing strip designed for quick and reliable pH measurement. Manufactured by Merck (Germany), this product ensures precise results across a wide pH range, making it suitable for laboratories, research, pharmaceuticals, food & beverage, and educational institutions.

Features:

• pH Range: 2.0 – 10.5

• Clear and sharp color change for accurate readings

• Easy to use – simply dip into the sample and compare with

Product Name: pH Indicator Paper (pH 2.0 – 4.5) – Merck

Description:
High-quality pH Indicator Paper from Merck, designed for quick and accurate determination of pH values in the range of 2.0 to 4.5. Each strip provides reliable color change for precise reading. Ideal for laboratories, research institutes, educational labs, and chemical testing applications.

Features:

• pH Range: 2.0 – 4.5

• Brand: Merck

• Easy color comparison chart included

• Accurate and consistent readings

• Suitable for aqueous solution testing

Packaging: Standard Merck pack

Description:
Litmus Blue Paper is a simple and widely used acid-base indicator made from natural dyes extracted from lichens. It is commonly used in laboratories, schools, and industries for quick pH testing. The blue litmus paper changes color in the presence of acids.

Specifications:

• Type: Indicator Paper (Blue)

• pH Range: Detects acidic conditions (pH < 7)

• Reaction: Turns red in acidic solution, remains blue in alkaline or neutral solutions

• Form: Strips / Rolls

• Packing:

  • Pack of 100 strips

  • 4” Rolls (with dispenser)

• Storage: Store in a cool, dry place, away from direct sunlight

Applications:

• Quick testing of acidic solutions in laboratories

• Educational use in schools and colleges for experiments

• Industrial testing for water, chemicals, food, and beverages

• Used in research laboratories as a simple pH indicator

Advantages:

• Easy to use

• Instant results

• Cost-effective testing solution