Red Litmus Solution
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Product Code : SCL-LC-12178
Red Litmus Solution (SKU SCL-LC-12178) is a laboratory acid-base indicator that stays red in acidic conditions and turns blue when a basic or alkaline sample is added. It suits the first lessons on acids and bases in Class 7 and Class 10, and quick screening in college labs before a pH measurement. Bottles can be ordered from Science Lab Supplies in Ambala, India, whether for one school laboratory, a tender lot or a distributor's stock.
Specifications
Red litmus solution gives a colour answer rather than a number, and each of its details appears in the table. In short, it stays red in acid and turns blue in a basic or alkaline sample; bottle capacity, solvent base and indicator strength are printed on the label of the batch you are quoted.
| Specification | Value |
|---|---|
| SKU | SCL-LC-12178 |
| Indicator type | Acid-base indicator solution |
| Colour in acidic conditions | Remains red |
| Colour in alkaline or basic conditions | Turns blue |
| Result type | Qualitative; not a substitute for a calibrated pH meter |
| Bottle capacity | Stated on the label and quotation |
| Solvent base and concentration | Stated on the label and Safety Data Sheet |
| Closure | Dropper cap or dispensing closure |
| Label | Batch and storage details |
| Document supplied | Safety Data Sheet |
| Storage | Tightly closed, cool and dry, away from direct sunlight |
| Protective equipment | Eye protection and gloves where required |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for Red Litmus Solution
A drop or two in a test tube or on a spotting tile shows pupils at once whether a solution is basic, so the indicator is useful school chemistry lab equipment in India for early acids-and-bases practicals. It can also screen rinse water or unknown aqueous samples before exact pH work with a meter.
- NCERT Class 7 science: sorting household solutions into acids and bases, with each sample held in one of a pack of Test Tubes.
- CBSE Class 10 chemistry, Acids, Bases and Salts: testing sodium hydroxide, lime water and other bases with litmus.
- Class 11 practicals: comparing litmus with universal indicator, pH paper and titration indicators, then reading the value on a pen-style pH Meter with 0.1 pH resolution.
- Sharing the solution between benches in a 60 mL Dropping Bottle with a colourless dropper.
Standard Scope of Supply
You receive a bottle of red litmus solution fitted with a dropper cap or dispensing closure, labelled with batch and storage details, and accompanied by the current Safety Data Sheet. Test tubes and spotting tiles can be added to the same quotation if your bench needs them.
Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted.
Packing, MOQ and Lead Time
Order a single bottle for one classroom or enough for every bench in a school group; the quotation lists packing, delivery time and price for exactly that number. Phenolphthalein or methyl orange can share the same quotation, so one delivery can cover a full indicator shelf.
Science Lab Supplies has an Importer-Exporter Code and is able to ship to buyers in Zambia, Rwanda, South Africa, Qatar, Sri Lanka and Vietnam. To price indicator bottles, write in via the contact page, place them in the enquiry cart beside other reagents, or turn to the lab tender page for a bid-based purchase.
Frequently Asked Questions
Does red litmus solution test acids or bases?
Mainly bases. Red litmus stays red in acids and turns blue in a basic or alkaline sample, so it is the indicator to reach for when checking whether a solution is alkaline.
Can red litmus give an exact pH value?
No. It gives a yes-or-no colour result only, showing whether a sample is basic. When a class needs a number, pair it with pH paper or a calibrated pH meter.
Who supplies the Red Litmus Solution?
Science Lab Supplies, based in Ambala, India, quotes it directly to schools, colleges and distributors; each bottle travels with its Safety Data Sheet and a label carrying batch and storage details.
How should the bottle be stored?
Keep it tightly closed in a cool, dry chemical cupboard away from direct sunlight. Never pour used solution back into the bottle, and discard it if it becomes faded or contaminated.
Related Acid-Base Indicators, Test Papers and Meters
An acids-and-bases practical needs more than one indicator and a few known bases to test. The Lab Chemicals items below, with litmus papers, universal indicator paper and a bench pH meter from the Chemistry Lab range, let pupils compare colour changes and confirm a value, all on one quotation.
- Phenolphthalein Solution Indicator — indicator reagent for titration endpoints and alkalinity observation.
- Methyl Orange — acid-base indicator reagent for pH-range demonstrations.
- Calcium Hydroxide — Ca(OH)2, also called slaked lime, for limewater and carbon dioxide tests.
- Ammonium Hydroxide — aqueous ammonia, written NH4OH, for weak-base and ammonium-ion work.
- Red Litmus Paper — paper strips that bases turn blue while acids leave them red.
- Blue Litmus Paper — strips that acids turn red and that stay blue in bases and neutral samples.
- Universal Ph Indicator — testing paper covering pH 0–14.
- Bench Digital Ph Meter — reads pH 0.00–14.00 and ORP, with automatic or manual temperature compensation.
Browse the full Lab Chemicals range, the Chemistry Lab range, or all school lab equipment.
Last updated: 22 October 2026
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