pH and Electrochemistry
CTL Scientific Supply Corp PH INDICATOR STRIPS 7.0-14.0
pH-Fix indicator strips pH 7.0-14.0 (non-bleeding strips) 100 strips/pack
CTL Scientific Supply Corp PEHANON INDICATOR STRIPS 4.0-9
Pehanon Indicator Strips 4.0-9. 26412-87-3
CTL Scientific Supply Corp QUANTOFIX NITRITE 3000
Test sticks for the semi-quantitative determination of high concentrations of nitrite (NO 2 ) in solutions
Gradation of scale: 0-0.1-0.3-0.6-1-2-3 g/l 200 strips/box
Electron Microscopy Sciences Pehanon pH Indicator Strips 1.0-12.0, 1.0 gradations
pH indicator papers where the indicator and color scale are combined on a single strip. They permit a fast, convenient, and accurate pH determination since it is not necessity to compare color against a scale. This presentation also permits the pH measurement of colored solutions and suspensions, since the color of the test solution acts on the comparison scale in the same manner as on the indicator field.
The indicator zone (unprinted field) is in the center of the strip, the comparison fields above and below same. The strip is submerged in the solution for three seconds so that all colors zone are wetted and the center field changes color according to the pH value of the solution. It is then compared to the color filed bearing the corresponding pH value imprint. An invisible hydrophobic barrier just above the top color field prevents capillary action of the test solution.
pH: 1.0-12.0
Gradations: 1.0