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Physical Properties:
Raw materials required for manufacture of benzaldehyde are Toluene , Chlorine & Sodium carbonate.
Toluene:
1. State : Liquid
2. Boiling point : 110.6250C
3. Melting point : -950C
4. Molecular wt : 92
5. Solubility /100 parts of water : 0.05 in cold.
6. Specific Heat : 40.48 (cal/mole 0K)
7. Heat of formation : 2.87 (Kcal/mole)
8. Special gravity : 0.866 at 200C
Chlorine:
1. State : Liquid
2. Boiling point : -34.60C
3. Melting point : -101.60C
4. Molecular wt : 71
5. Solubility /100 parts of water : 0.57 in cold.
: 46 in hot.
6. Specific Heat : 8.28(cal/mole 0K)
7. Heat of formation : 0.00 (Kcal/mole)
8. Special gravity : 1.56 at 200C
Sodium Carbonate:
1. State : Solid
2. Boiling point : -----
3. Melting point : 851 0C
4. Molecular wt : 106
5. Solubility /100 parts of water : 48.5 in hot
: 7.1in cold.
6. Specific Heat : 28.9 (cal/mole 0K)
7. Heat of formation : -275.9(Kcal/mole)
8. Special gravity : 2.533 at 200C
Benzaldehyde:
1. Molecular formula : C7H6O2
2. Molecular weight : 106.12
3. Boiling Point : 179 0C @760mmHg
4. Melting point, : -260C (-150F)
5. Flash point : Closed cup-640C(1480F)
: Open cup - 740C (1650F)
6. Specific Gravity : 1.046
7. Refractive Index : 1.5455 @ 17.6 0C
8. Auto ignition temp : 1920C or (3780F)
9. Vapor Pressure : 10mm Hg @ 620C
: 60mm Hg @99.60C
: 100mm Hg @ 112.50C
: 400mm Hg @ 154.10C
10. Vapor Pressure Equation: : Log P = A - B / ( T + C )
Where A= 6.6153
B= 1277
C= 164
P is in mmHg
& T is in 0C
11. Sp. Heat (liquid) : 1.615 J/g 0K @ 250C
12. Solubility in water : 0.6 wt. @ 200C
13. Solubility of water : 1.5 wt % @ 200C
14. Viscosity : 1.4 Centipoise @ 250C
15. Standard Heat of combustion : -31.9KJ/g
16. Heat of formation : - 88.89 KJ/mole
17. Latent Heat of Vaporisation : 362 J/g