Red Litmus Paper Manufacturer,Supplier and Exporter in India
Product Code : EL-CL-11664
Jlab Export is a leading Red Litmus Paper Manufacturer,and suppliers in India
Red Litmus Paper (code EL-CL-11664) is a litmus indicator paper, model JL 239/05, whose red colour changes to blue when it meets a basic (alkaline) solution. It gives a quick yes-or-no test for bases in school chemistry and is used together with blue litmus paper, which picks out acids. JLab produces this red litmus paper in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model No. | JL 239/05 |
| Indicator | Litmus (red paper) |
| In basic (alkaline) solution | Changes from red to blue |
| Litmus colour in acid | Red |
| Litmus colour in neutral solution | Purple |
| Quality check | Each batch is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 3–5 working days |
| Product code | EL-CL-11664 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Reading the Colour Change
Litmus is a dye that shows red in acidic solutions, blue in alkaline ones and purple when the solution is neutral. On red paper the dye is already in its acid form, so it turns blue only when a base is present and stays red in an acid or in plain water. When the paper stays red, a second check with blue litmus paper tells an acid from a neutral liquid.
Running the Test in Class
Lay a short strip on a white tile and put one drop of the test liquid on it with a dropper; the white background makes a faint blue easy to spot. Soap solution, lime water and baking soda solution are everyday bases that turn it blue. Keep unused paper in a closed container away from acid and ammonia fumes. How long unused paper keeps depends on its grade and on storage; the expiry date of each batch comes with the quotation.
Related Items for Acid-Base Tests
- Blue Litmus Paper — changes to red in acids, completing the acid-base check.
- White Tile — plain white surface that shows the colour change clearly.
- Dropper — puts a single drop of test liquid on the strip.
More indicators and test papers are in Chemistry Lab, part of Chemistry Lab Equipment.
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Last updated: 25 October 2026
