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Method of determining the angle of flow properties of guar gum.1. Place the glass funnel into the holder on the tripod. The funnel should be 150-250 g of Guara, the outlet funnels must be from 0.5 to 1 cm. 2. place the funnel so that the distance from the tip of the funnel to the surface of the table was 5 cm. 3. Place the funnel under the sheet of paper.4. Fill the hopper with the guar steady rate until peak formed the Guara powder cone just touches the tip of the funnel.5. another piece of paper to close the tip of the funnel to avoid precipitation of Guara from the funnel. Carefully remove the funnel.6. Measure the angle the flow using the Protractor or analogue measurement, repeating every 45-60°.7. As the equivalent of two rulers. They measured the height of the Cone (h) and the radius of the cone ačerez every 45-60°. Then calculate the average value of the radius of the cone a. ratio of Cone (h) to the radius of the cone a is equal to the angle tangent, anti-guaratgα (tgα = h | a). Using the inverse tangent, which is called the inverse tangent, we get the numerical value of the angle, in degrees, of the flow. All calculations can be done using the standard Windows calculator with options such as "reverse engineering".8. The viscosity solution guaro with 3 g/l concentration is measured through 3, 15 and 30 min after the start of the process of the dissolution of Guara in the water. Viscosity is measured at a speed of 300 RPM, which corresponds to shear-511 c-1. Measurements are for the model 900 OFITE viscometer at using the standard configuration of the measuring
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