Selivanov’s test:
Selivanov’s test involves acidifying a sugar solution with concentrated hydrochloric acid, adding an ethanolic resorcinol solution and heating. Ketoses react quickly to form a red-coloured dye, while aldoses do not react at all, or only react slowly.
Carl ROTH provides suitable acids and bases for different requirements!
Assay (acidim.) | 36,5-38,0 % |
Colour (Hazen) | ≤10 |
Free chlorine (Cl) | ≤0.0001 % |
Ash content (as SO4) | ≤0,0005 % |
Heavy metals (as Pb) | ≤0,0001 % |
Phosphate (PO4) | ≤0,00005 % |
Sulphate (SO4) | ≤0,0001 % |
Sulphite (SO3) | ≤0,00005 % |
Aluminium (Al) | ≤0,000005 % |
Ammonium (NH4) | ≤0,0001 % |
Arsenic (As) | ≤0,000001 % |
Barium (Ba) | ≤0,000001 % |
Beryllium (Be) | ≤0,000001 % |
Bismuth (Bi) | ≤0,000005 % |
Lead (Pb) | ≤0,000001 % |
Boron (B) | ≤0,00001 % |
Bromide (Br) | ≤0,005 % |
Cadmium (Cd) | ≤0,000001 % |
Calcium (Ca) | ≤0,00003 % |
Chromium (Cr) | ≤0,000001 % |
Iron (Fe) | ≤0,00001 % |
Gallium (Ga) | ≤0,000005 % |
Germanium (Ge) | ≤0,000002 % |
Gold (Au) | ≤0,000005 % |
Potassium (K) | ≤0,00001 % |
Cobalt (Co) | ≤0,000001 % |
Copper (Cu) | ≤0,000001 % |
Lithium (Li) | ≤0,000001 % |
Magnesium (Mg) | ≤0,000005 % |
Manganese (Mn) | ≤0,000001 % |
Molybdenum (Mo) | ≤0,000001 % |
Sodium (Na) | ≤0,00005 % |
Nickel (Ni) | ≤0,000002 % |
Platinum (Pt) | ≤0,00001 % |
Mercury (Hg) | ≤0,000001 % |
Silver (Ag) | ≤0,000002 % |
Strontium (Sr) | ≤0,000002 % |
Thallium (Tl) | ≤0,000002 % |
Vanadium (V) | ≤0,000001 % |
Zinc (Zn) | ≤0,00001 % |
Tin (Sn) | ≤0,00002 % |
Zirconium (Zr) | ≤0,000002 % |