Description
Thymolphthalein indicator solution is a ready-to-use laboratory reagent containing 1 % thymolphthalein in denatured ethanol. It is intended for titration and pH indicator applications where a clear colour transition supports endpoint detection in volumetric analysis. Physical properties include a density of 0,81 g/cm³, a boiling point of 78 °C and a flash point of 13 °C; the preparation is assigned UN number 1170. The solution is supplied in a 100 ml glass bottle, providing a practical pack size for routine bench work and method development. Offered by manufacturer Carl ROTH as part of its ready-to-use pH indicator solutions for titration, it fits analytical, teaching and quality-control environments that require a pre-dissolved alcoholic indicator. Using a defined concentration in denatured ethanol reduces preparation time and helps keep indicator strength consistent from one series of titrations to the next, supporting reproducible laboratory practice.
This article is part of Indicators & indicator solutions, in Analytical standards & reference materials.
Key features
- Pack size: 100 ml glass
- Density: 0,81 g/cm³
- Flash point: 13 °C
- Boiling point: 78 °C
- Concentration: 1 % in denatured ethanol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
DangerHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Thymolphthalein indicator solution, 1 % in ethanol denatured, 100 ml, glass
What is this article?
Thymolphthalein indicator solution, 1 % in ethanol denatured, 100 ml, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Indicators & indicator solutions, inside Analytical standards & reference materials, in Lab chemicals.
An indicator solution changes colour at a stated point, usually a pH interval or a redox potential, so a titration endpoint can be seen. The solvent and the concentration decide how sharp the change is. A solid indicator dye and a ready solution are different articles.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
Which category should I open next?
The category is Analytical standards & reference materials. The sub-category is Indicators & indicator solutions. The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Reference substances & reagents (other), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN) and Spectroscopy & physical property standards.
What should I check before I order?
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