Description
Litmus papers in refill-pack format provide a classic, rapid means of indicating acid–base character in laboratory and teaching environments. These blue litmus rolls respond in the pH 8 to 5 range, turning as the sample shifts from alkaline toward acidic conditions. Each roll is 5 m long and 10 mm wide, allowing strips to be cut to the length needed for spot tests, titration checks or qualitative screening. The pack contains three rolls, ideal for restocking dispensers or shared bench stations. Manufactured by MACHEREY-NAGEL, the papers suit routine pH indication where instrument measurement is unnecessary or unavailable. Blue litmus is widely used in chemistry practicals, quality-control spot checks and field sampling to distinguish acidic from neutral or alkaline solutions. The narrow roll format minimises waste while keeping indicator paper ready for immediate use across wet-lab workflows.
This article is part of pH electrodes & sensors, in pH & electrochemistry.
Key features
- Pack size: 3 rolls
- Type: blue litmus paper
- pH range: 8–5
- Roll length: 5 m
- Width: 10 mm
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Litmus papers, refill packs, 5 m rolls, W 10 mm, blue pH 8 - 5, 3 roll(s)
What is this article?
Litmus papers, refill packs, 5 m rolls, W 10 mm, blue pH 8 - 5, 3 roll(s) is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in pH electrodes & sensors, inside pH & electrochemistry, in Lab instruments.
A pH electrode is a glass membrane and a reference. It is a consumable: the glass ages, the junction clogs, and the reading drifts. A refillable electrode and a gel electrode differ in how they are maintained. The connector has to match the meter. The electrode, not the meter, is usually what is wrong.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is pH electrodes & sensors. The catalogue is Lab instruments.
Shelves beside this one are pH meters, Conductivity meters & cells, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.