Trichloromethane/Chloroform, 25 l, tinplate
Molar mass (M) 119,38 g/mol
Density (D) 1,48 g/cm³
Boiling point (bp) 61 °C
Melting point (mp) -63 °C
ADR 6.1 III
CAS No. [67-66-3]
excl. VAT. | 25 l per Pack Qty.
Art. No. 3313.5
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Carl ROTH also offers reagents suitable for food analysis.
On the following pages, you will find the determination of
• Nitrogen according to Kjeldahl
and the determination of the
• Iodine value
• Acid value
• Peroxide value
• Saponification value
as well as other determining factors such as
• 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.
|Assay (GC)||≥99 %|
|Water (KF)||≤0,02 %|
|Aluminium (Al)||≤0,00005 %|
|Barium (Ba)||≤0,00001 %|
|Lead (Pb)||≤0,000005 %|
|Cadmium (Cd)||≤0,000005 %|
|Calcium (Ca)||≤0,00005 %|
|Chromium (Cr)||≤0,000002 %|
|Cobalt (Co)||≤0,000002 %|
|Iron (Fe)||≤0,00005 %|
|Copper (Cu)||≤0,00001 %|
|Manganese (Mn)||≤0,000002 %|
|Nickel (Ni)||≤0,00001 %|
|Zinc (Zn)||≤0,000005 %|
|Tin (Sn)||≤0,00001 %|
|Evaporation residue||≤0,0015 %|
|stabilised with 0.6-1% Ethanol.|