Viscosity and Density of Aqueous Solutions of Urea and Guanidine Hydro

Chapter

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ABSTRACT

Table 1 Viscosity of Aqueous Solutions of Urea, at 25°

conceration

Relative viscosity,η/η₀

calculated

Weight %

Moles/liter

H₂O

Observed

Equation 3

Equation 4

6.159

1.039

1.093

1.043

1.043

1.043

10.567

1.804

1.967

1.080

1.080

1.080

13.920

2.399

2.692

1.113

1.112

1.113

18.311

3.191

3.732

1.162

1.162

1.162

22.655

3.994

4.877

1.219

1.220

1.220

25.543

4.537

5.712

1.265

1.264

1.264

31.017

5.590

7.486

1.359

1.362

1.361

33.112

5.999

8.242

1.403

1.405

1.405

35.069

6.388

8.993

1.449

1.449

1.448

39.098

7.198

10.689

1.545

1.549

1.550

30.548

7.289

10.892

1.564

1.561

1.562

40.565

7.497

11.364

1.591

1.589

1.590

43.100

8.019

12.612

1.663

1.663

1.666