Analysis Note

Assay (GC, calc. on anhydr. substance): ≥ 99.5 %Assay (alkalimetric, calculated on anhydrous substance): 98.0 - 101.0 %Identity: passes testColor: ≤ 10 APHAAppearance of solution: passes testAcidity or alkalinity: passes testFree acid (CH₃COOH): ≤ 0.002 %Neutrality: passes testRefractive index (n 20/D): 1.470 - 1.475Chloride (Cl): ≤ 0.0010 %Sulfate (SO₄): ≤ 0.001 %Halogenated compounds (as Cl): ≤ 0.0030 %Heavy metals (as Pb): ≤ 0.00020 %Al (Aluminium): ≤ 0.00005 %B (Boron): ≤ 0.000002 º (Barium): ≤ 0.00001 Ê (Calcium): ≤ 0.0001 Í (Cadmium): ≤ 0.000005 %Co (Cobalt): ≤ 0.000005 %Cr (Chromium): ≤ 0.000002 %Cu (Copper): ≤ 0.000005 þ (Iron): ≤ 0.00001 %Mg (Magnesium): ≤ 0.0001 %Mn (Manganese): ≤ 0.00001 %Ni (Nickel): ≤ 0.000002 %Pb (Lead): ≤ 0.00001 %Sn (Tin): ≤ 0.00001 %Zn (Zinc): ≤ 0.00001 %Methanol: ≤ 3000 ppmOther residual solvents (ICH Q3C): ...excluded by production processAcrolein and glucose: passes testAldehydes: ≤ 10 ppmDiethylene glycol and related Substances (impurity A): ≤ 0.1 %Diethylene glycol and related Substances (any further impurity): ≤ 0.1 %Diethylene glycol and related Substances (Sum of all impurities): ≤ 0.5 útty acids and esters (as Butyric acid): ≤ 0.05 %Substances darkened by sulfuric acid: passes testSugar: passes testSulfated ash: ≤ 0.005 %Water: ≤ 0.5 %

Application

Glycerol is used both in sample preparation and gel formation for polyacrylamide gel electrophoresis. Glycerol (5-10%) increases the density of a sample so that the sample will layer at the bottom of a gel’;s sample well. Glycerol is also used to aid in casting gradient gels and as a protein stabilizer and storage buffer component.

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Packaging

2.5 l in Plastic bottle