3 THE SURFACE TENSION OF LIQUIDS MEASURED WITH THE STALAGMOMETER
Stalagmometer is a glass tube, widened in the middle part (Figure 2) Its volume is calibrated by the scale shown on the tube, or by the top and bottom lines The bottom part of stalagmometer is modified such that the liquid flowing through its smaller diameter forms the drops Figure 2 Stalagmometer
EXERCISE MEASUREMENT OF SURFACE TENSION: STALAGMOMETRIC METHOD
Stalagmometer Tested liquids Weighing vessel Calliper Thermometer 2 Goal Determination of surface tension of several different liquids 3 Measurement setup Fig 1 Presentation of the formation of drops at the end of the stalagmometer’s capillary The time of detachment of the drop is determined by the force of gravity and
Experimenting with stalagmometer and viscometer on day to day
Traube’s Stalagmometer Traube’s Stalagmometer (Fig 2) is a classical instrument for carrying out surface tension measurements of the liquids It is a glass tube widened in the middle similar to a pipette The lower end has a fine capillary inside it and the upper end has a wide tube with rubber tubing at the top of it There
Reference Method for Measuring the Surface Tension of
the stalagmometer at least three times as per section with that 6 4 sample before measuring This ensures that the interior surface of the stalagmometer is thoroughly wetted with the solution 6 6 To measure the surface tension of the solution, fill the stalagmometer with the sample to above the top set of lines on the stalagmometer If
Instruction for the Laboratory of Biophysics
stalagmometric method (method of counting drops) Stalagmometer (Fig 1a) is a device made up of a glass bulb with marked above and below the bulb indicators designating specific volume of liquid, ended capillary To measure the surface tension of the test liquid fill of stalagmometer and allow it to flow freely
2AFGF Surface tension
Stalagmometer and the stalagmometer tip This method was first time described by Tate in 1864 who formed an equation, which is now called the Tate’s law W 2= πrγ (9) Where: W is the drop weight, r is the capillary radius, and γγγγis the surface tension of the liquid The stalagmometric method
11 SURFACE TENSION DETERMINATION OF THE SURFACE TENSION WITH
Stalagmometer is a glass tube, widened in the middle part (Figure 3) Its volume is calibrated by the scale shown on the tube, or by the top and bottom lines The bottom part of stalagmometer is modified such that the liquid flowing through its smaller diameter forms drops
Conducting Surface Tension Measurements For Compliance With
Stalagmometer Capillary Tube Any other "suitable" device Slide 7 TECHNIQUES OF MEASUREMENT There are dynamic and static ways of measuring surface tension Dynamic techniques measure the way the surface tension of a fluid changes in relation to the surface tension of a different fluid, such as measurements taken with a stalagmometer Static
PRACTICAL LAB MANUAL - S A RAJA PHARMACY COLLEGE
• The clean stalagmometer is fixed with a clamp and filled with water by sucking • Around 20 to 30 drops of water falling from the stalagmometer This is collected in a dry weighing bottle and weighted • The stalagmometer is then dried and experiment is repeated iwht theliquid Whose surface tension to be determined
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