"Complete Meter Stick Optics Bench"

Used to conduct flame tests for potassium.

Improves visibility in sodium and potassium flame tests.

By choosing an ELGA water purification system, you are making an investment in quality, reliability and value.

Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.

These cellulose filter papers are intermediate in speed and retention between grades 1 and 4.

Whatman chromatography papers are widely used across the world, reflecting their purity, high quality and consistency. They are made from specially selected cotton cellulose and rigorously quality controlled to ensure uniformity within the grade.