Description
Phenolphthalein indicator solution is a ready-to-use 1 % preparation in denatured ethanol 90 %, intended for acid–base titration and related colourimetric end-point detection. The ethanolic matrix shows a density of 0,82 g/cm³, a boiling point of 78 °C and a flash point of 17 °C, consistent with a flammable alcohol-based laboratory reagent (UN-Nr. 1170). This indicator solution from manufacturer Carl ROTH mixes readily with aqueous samples and is suited to alkalimetric titrations, teaching laboratories and quality-control workflows. Phenolphthalein remains a standard choice for monitoring neutralisation reactions and for protocols that rely on a clear colour change at the equivalence point. The denatured ethanol carrier helps maintain indicator availability under normal bench handling while fitting established titration procedures across research and industrial laboratories.
This article is part of Analytical grade solvents (p.a.), in Solvents.
Key features
- Pack sizes: 250 ml, 500 ml, 1 l
- Density: 0,82 g/cm³
- Flash point: 17 °C
- Boiling point: 78 °C
- Concentration: 1 % in ethanol 90 %, denatured
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Danger
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Phenolphthalein indicator solution, 1 % in ethanol 90 %, denatured, 250 ml
What is this article?
Phenolphthalein indicator solution, 1 % in ethanol 90 %, denatured, 250 ml is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Analytical grade solvents (p.a.), inside Solvents, in Lab chemicals.
An analytical-grade solvent, often marked p.a., has impurity limits tight enough for classical analysis and for preparing reagents. It is not automatically low enough in UV absorbance for HPLC, and it is not dry enough for a water-sensitive reaction. The grade is the purchase.
A solvent dissolves. The grade says which impurities are low enough for the method. Analytical grade is the ordinary pure solvent. HPLC and LC-MS grades limit the absorbance and the ions that would become peaks or background. A dry solvent has had water removed. A deuterated solvent is for NMR, where the hydrogen signal would otherwise drown the sample. Technical grade is for cleaning and for synthesis that does not need a chromatogram. Identity is on PubChem. Names follow IUPAC. Hazards follow ECHA, the CLP Regulation and REACH.
Which category should I open next?
The category is Solvents. The sub-category is Analytical grade solvents (p.a.). The catalogue is Lab chemicals.
Shelves beside this one are HPLC & LC-MS grade solvents, Dry & deuterated solvents (NMR, synthesis), Technical & synthesis grade solvents and Green & alternative solvents.
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