tert-Butyl methyl ether, 2.5 l, glass
Molar mass (M) 88,14 g/mol
Density (D) 0,74 g/cm³
Boiling point (bp) 55,3 °C
Flash point (flp) -28 °C
Melting point (mp) -109 °C
ADR 3 II
CAS No. [1634-04-4]
excl. VAT. | 2.5 l per Pack Qty.
Art. No. 8462.2
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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
Acid Value Determination
The acid number characterises the acidic components of the fats. For this purpose, the sample is dissolved in a solvent and titrated against phenolphthalein with potassium hydroxide solution. Only free fatty acids are recorded. The fatty acids bound in the glycerides are not determined.
|Assay (GC)||≥99.5 %|
|Water (KF)||≤0,1 %|
|Free acid (as CH3COOH)||≤0,001 %|
|Non volatile matter||≤0,002 %|
|Isobutyl methyl ketone||≤0,005 %|
|Carbonylic compounds (as CO)||≤0,001 %|
|Aluminium (Al)||≤0,00005 %|
|Lead (Pb)||≤0,000005 %|
|Calcium (Ca)||≤0,00005 %|
|Cadmium (Cd)||≤0,000005 %|
|Chromium (Cr)||≤0,00005 %|
|Iron (Fe)||≤0,00005 %|
|Magnesium (Mg)||≤0,00001 %|
|Manganese (Mn)||≤0,000005 %|
|Nickel (Ni)||≤0,000005 %|
|Zinc (Zn)||≤0,000005 %|