Red Litmus pH Indicator Solution
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Product Code : SCL-CA-12622
Quick Answer: Red Litmus pH Indicator Solution is a litmus acid-base indicator that stays red in acidic conditions and turns blue in alkaline ones, used for quick qualitative pH checks in supervised chemistry practicals.
Last updated: October 2026
Key Features
- Litmus acid-base indicator in solution form
- Red in acid; changes to blue in alkaline solutions
- Approximate transition range of pH 5.0 to 8.0
- Qualitative indication, not an exact numerical pH reading
- One or two drops per sample in a test tube or spot plate well
Technical Specifications
| Specification | Value |
|---|---|
| Indicator type | Litmus acid-base indicator solution |
| Colour behaviour | Red in acidic conditions; changes blue in alkaline conditions |
| Approximate transition range | About pH 5.0-8.0 |
About This Product
Red litmus solution shows whether a sample behaves as alkaline and demonstrates colour change in lessons on acids, bases, neutralisation and pH indicators. A small amount of sample goes into a clean test tube or spot plate well, one or two drops of indicator are added, and the colour is read against a white background. The result is quick and qualitative, and can be compared with universal indicator or pH meter readings. Export supply of the Red Litmus pH Indicator Solution can be arranged to laboratories and schools in Haiti, Equatorial Guinea, South Sudan, Costa Rica, Kiribati and Saint Lucia.
Frequently Asked Questions
Q1. Does red litmus solution give an exact pH value?
No. It shows acid-base behaviour qualitatively, staying red in acid and turning blue in alkaline conditions. A calibrated pH meter or full-range universal indicator is used when a numerical pH value is needed.
Related: Chemical Analysis, Tartaric Acid Chemical Reagent, Strontium Nitrate Laboratory Chemical.
For a quotation on the Red Litmus pH Indicator Solution, contact School Equipments India.
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