Graduation 0 - 0. Remove the test strip, gently shake off excess liquid, wait 5 seconds and compare the reaction zone with the color scale. Notes on the Handling of Diethyl Ether Ether must never be distilled to dryness.
Organic Solvents volatile ethers Remove a test strip and immediately reclose the tube. Test the eluate for peroxide. Use in Dairies In dairies checks must be made on the diethyl ether peroxide concentration of the extraction ether used for fat determinations and on hydrogen peroxide levels in salt baths, peroxide-containing disinfectants and other liquids.
These include unsaturated hydrocarbons, aldehydes, ketones and tetralin. All of these offer only a partial solution, however. Graduation 0 - 0.
Breathe on the reaction zone 4 times for seconds each time. Here, the Peroxide Test can be used not only to monitor disinfectant concentrations but also to test for residues on equipment after cleaning and rinsing. This being so, it is advisable to perform a trial determination in the laboratory to verify that the Peroxide Test strip gives satisfactory results.
Explosions can also occur when containers of peroxide-containing liquids are jolted or the peroxides ignite as a result of friction upon opening. All of these offer only a partial solution, however. The Peroxide Test detects inorganic and organic compounds containing a peroxide or a hydroperoxide group.
Organic Solvents Volatile Ethers Immerse a test strip for approximately 1 second in the solvent being tested and allow to evaporate. Sour milk contains pyruvate, which reacts with hydrogen peroxide.