

Methyl Violet Indicator Paper Strips, Vial of 100
$10.00(Ex GST)
- Narrow-range pH paper for strong acids, colour change from yellow at pH 0.2 to violet at pH 2.0.
- Remains violet above pH 2.0, helps confirm solutions are outside the very acidic measurement window.
- Quick dip method, 1–2 seconds, simple screening for highly acidic samples in lab and teaching use.
- Handle strip by end only, reduces contamination and improves repeatable colour response between tests.
- Not for nitrocellulose propellant stability testing, requires specialised military methyl violet procedure.
- Description
- Datasheets & Manuals
Description
Methyl violet test paper is a narrow-range pH indicator paper designed for very acidic solutions. It transitions from yellow at approximately pH 0.2 to violet at approximately pH 2.0. Above pH 2.0, the indicator remains violet, while at stronger acidity it shifts gradually toward yellow as pH approaches 0.2.
This test paper should not be used to test the stability of nitrocellulose propellants, which requires a specific “military” methyl violet method. Handle strips by the end only to avoid contamination, and dip for 1–2 seconds for a clear colour response.
Instructions
Remove one strip from the vial, hold only at the end.
Dip into the solution for 1–2 seconds, then remove.
Compare colour: yellow indicates stronger acidity near pH 0.2, violet indicates around pH 2.0 or above.
FAQs
Q: What pH range does methyl violet paper cover?
A: Approximately pH 0.2 to pH 2.0.
Q: What colours correspond to the range?
A: Yellow near pH 0.2, violet near pH 2.0.
Q: What happens above pH 2.0?
A: The paper remains violet.
Q: How long should the strip be dipped?
A: 1–2 seconds.
Q: Can it be used for nitrocellulose propellant stability testing?
A: No, it should not be used for that purpose, use the specific military methyl violet method.
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