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Sodium thiosulphate solution, 5 l, plastic

0,1 mol/l - 0,1 N, volumetric standard solution
Related products
Pack Qty.
Pack.
Empirical formula Na2O3S2
Density (D) 1,1 g/cm³
Boiling point (bp) 100 °C
WGK 1


Type analysis
€48.90 /Pack Qty.

€38.90/Pack Qty.  Campaign price!

excl. VAT. | 5 l per Pack Qty.

Art. No. K022.2

Available from stock Karlsruhe
Delivery fast, simple and reliable!
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Sodium thiosulphate solution
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Order No. Pack Qty. Pack. Price Quantity
K022.1 1 l plastic €14.30
K022.2 5 l plastic €38.90
K022.3 5 l ROTI®CUBE €43.60
K022.4 10 l ROTI®CUBE €67.60
Available from stock Karlsruhe
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Selected quantity:   0
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General information

Analysis of Food

Carl ROTH also offers reagents suitable for food analysis.

On the following pages, you will find the determination of
• Nitrogen according to Kjeldahl
• Sugar
• Mercury
• Trichinae
• Fat

and the determination of the
• Iodine value
• Acid value
• Peroxide value
• Saponification value

as well as other determining factors such as
• Viscosity
• Density
• Hydroxyl value
• Fluoride ions


Iodine Value Determination

The iodine value is a measure of the unsaturated fatty acids in glycerides. The more olefinic double bonds there are in the fat, the higher the iodine value.


Peroxide Value Determination

The peroxide value of a substance denotes how much peroxide it contains. In a mixture of glacial acetic acid and chloroform, the peroxide oxidises the iodide into elementary iodine. The resulting quantity of iodine is then back-titrated using a thiosulphate solution (where a starch solution is used as the indicator). The blank solution tested in parallel is used to calculate the results.


Volumetric Standard Solutions

A volumetric standard solution is a solution containing a precisely known concentration of a substance. The concentration of a volumetric standard solution is determined using a primary standard, which is accurately weighed and dissolved to make a specific volume. Volumetric standard solutions are made using reagent-grade (p.a.) substances as source materials.


Volumetric Standard Solutions, ready-to-use

The advantages of this over making them yourself are:

  • Manufactured and tested using modern manufacturing and analytical methods
  • Ready-to-use solutions
  • High accuracy for precise analyses
  • Application of NIST-certified reference substances for checking
  • Connection to standard titrators is possible


Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Type analysis

Amount-of-substance conc. (20 °C)0,1 mol/l ±0,2 %  
Titer0,998-1,002  

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