Specifications Table

Product Name – Whatman Weighing Paper 609 Kjeldahl
Quantity/Pack Size – 55x10x10MM (Pack of 100)
Form – Pre-cut sheets
Grade – Kjeldahl (acid-resistant)
Application – Analytical weighing, sample preparation

Product Overview

The Whatman 609 Kjeldahl weighing paper is engineered for laboratories requiring uncompromised precision in analytical weighing. Crafted from high-purity cellulose, this paper is chemically treated to resist acids, alkalis, and organic solvents, ensuring reliable performance in Kjeldahl digestion and other corrosive environments. Its lint-free surface prevents sample contamination, while the smooth texture allows for easy folding and handling. The uniform thickness guarantees consistent results, eliminating variability in measurements. Designed for critical applications, this weighing paper maintains dimensional stability even under moisture exposure, making it indispensable for gravimetric analysis. The pre-cut 55x10x10MM size optimizes workflow efficiency, reducing preparation time. Compatible with most analytical balances, it provides a stable platform for micro to macro weighing tasks. The acid-resistant formulation extends its utility beyond standard weighing papers, offering durability in harsh chemical conditions. Whether for routine lab work or specialized research, this product delivers the accuracy and reliability that Whatman is renowned for.

FAQs

1. Is Whatman 609 Kjeldahl weighing paper suitable for moisture-sensitive samples?

The paper’s acid-resistant treatment provides some moisture resistance, but for highly hygroscopic samples, pre-drying the paper is recommended to maintain accuracy.

2. Can this weighing paper be used with automatic dispensers?

While designed for manual use, the uniform dimensions allow compatibility with most standard lab dispensers when properly aligned.

3. What alternatives exist for non-acidic weighing applications?

For general-purpose weighing, Whatman Grade 1 qualitative filter paper offers a cost-effective alternative without acid resistance.

4. How should unused weighing paper be stored to maintain quality?

Store in the original packaging at room temperature, away from direct sunlight and chemical fumes to preserve its acid-resistant properties.

5. Does this paper leave residue when burned during sample preparation?

The high-purity cellulose composition ensures minimal ash content (typically <0.01%), making it suitable for combustion analysis.