Description
Sodium thiosulphate solution 0,05 mol/l – 0,05 N is a ready-to-use volumetric standard solution formulated for iodometric and related redox titrations in analytical chemistry. The empirical formula is Na₂O₃S₂. Density is approximately 1 g/cm³ and the boiling point is about 100 °C, consistent with an aqueous laboratory titrant. Packed as a 1 l unit, the solution is practical for routine titre work, method validation and teaching laboratories that require a stable thiosulphate standard without on-site preparation. This volumetric reagent from manufacturer Carl ROTH supports reproducible endpoint determinations in applications such as iodine, oxidant and residual chlorine analyses where a defined 0,05 N strength is specified. As part of the volumetric standard solutions portfolio, it helps streamline analytical workflows by providing a consistent concentration ready for immediate use on the bench.
This article is part of Volumetric standard solutions (titration), in Analytical standards & reference materials.
Key features
- Amount-of-substance conc. (20 °C): 0.0498-0.0502 mol/l
- Titer: 0.996-1.004
- Pack size: 1 l
- Empirical formula: Na₂O₃S₂
- Density: ~1 g/cm³
- Boiling point: ~100 °C
- Concentration: 0,05 mol/l – 0,05 N
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Sodium thiosulphate solution, 0,05 mol/l - 0,05 N volumetric solution, 1 l
What is this article?
Sodium thiosulphate solution, 0,05 mol/l - 0,05 N volumetric solution, 1 l is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Volumetric standard solutions (titration), inside Analytical standards & reference materials, in Lab chemicals.
A volumetric standard solution is a reagent of stated concentration for titration, such as a stated molarity of acid, base or silver nitrate. The factor or the exact titre is on the certificate. Using the nominal molarity when a factor is printed is a systematic error.
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 Volumetric standard solutions (titration). The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Reference substances & reagents (other), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions.
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The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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