Stalagmometric method - Wikipedia
The stalagmometer must be kept clean for meaningful readings. There are commercial tubes for stalagmometric method in three sizes: 2.5, 3.5, and 5.0 (mL). The 2.5-mL size is suitable for small volumes and low viscosity, that of 3.5 (mL) for relatively viscous fluids, and that of 5.0 (mL) for large volumes and high viscosity.
To determine the surface tension of given liquid using Stalagmometer.
Feb 15, 2021 · Apparatus Required Beaker Stalagmometer Stop Watch The relative surface tension is calculated from the expression: Where, 1 and 2 are the viscosity coefficients of water and given liquid. n1 and n2 are the drops of water and given liquid d1 and d2 are the densities of water and given liquid. Knowing the value of the surface tension of water ( 1 ...
c. GURS PHWKRG - using stalagmometer and drops weighing or counting according to Traube ́s method modification. A constant volume of liquid is given by volume of the reservoir of stalagmometer VS (volume is defined by the upper and lower mark).
Requirements: Stalagmometer (Traube,s), rubber tube with screw pinch cock, relative density (R.D.) bottle, stand, balance, weighing box, beaker, unknown liquid, distilled water.
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 …
Surface Tension Measurement by Traube Stalagmometric Method
Traube’s stalagmometer is an instrument for measuring surface tension by determining the exact number for drops in a given quantity of a liquid. When using the Traube stalagmometer to measure surface tension, a fixed volume of liquid is delivered as freely falling drops from the end of a tube and the number of drops formed is counted.
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 …
Aim: To determine the viscosity of a given unknown liquid with respect to water, at laboratory temperature, by viscometer. Requirements: Ostwald viscometer, rubber tube with screw pinch cock,
Determination of Surface Tension by Drop Count Method
Oct 5, 2024 · There is a capillary bore at the tip of the stalagmometer. The surface tension of the liquid can be calculated using following formula.1-3. Where, v1 =surface tension of test liquid. v2 =surface tension of water. ρ1&ρ2 =Density of test liquid &water. n1=no.of drops of test liquid. n2=no .of drops of water.
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.
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