Quick Answer:The Red Litmus Indicator Paper is an indicator paper in strips that changes from red to blue when it meets a base, used to show whether a solution is alkaline.
Last updated: 18 October 2026
Key Features
Red litmus paper strips.
Turns blue in alkaline (basic) solutions.
Fast, clear colour change.
Stays red in acids; blue litmus is used to detect acids.
Technical Specifications
Specification
Value
Type
Chemical indicator paper
Colour
Red
Detects
Bases (turns blue)
Form
Paper strips
How It Is Used
Touch a strip with the solution under test: if it turns blue, the solution is basic. Used together with blue litmus, it lets students sort solutions into acids and alkalis during practical work. Store the paper cool and dry, out of moisture and direct sunlight, so it stays effective.
Frequently Asked Questions
What is Red Litmus Indicator Paper used for?
It shows whether a solution is basic (alkaline): the paper turns from red to blue when exposed to a base.
Does Red Litmus Indicator Paper react to acids?
No. It does not change colour in acidic solutions; blue litmus paper is used to detect acids.
.jpg)
.jpg)