UD Technologies > Rotary Evaporator Solvent Chart

ROTARY EVAPORATOR SOLVENT CHART

UD Technologies is a Manufacturer of Industrial Scale Rotary Evaporator (Rotavap-Rotovap) of Reliable and Proven Quality. In pursuit to give more useful Information, we have prepared a Rotary Evaporator Solvent Chart t of Boiling Points at different vacuums for different Solvents. We recommend 25 deg Higher Bath Temperature than Boiling Point and 25 Degc Lower Temperature than Boiling Point. Considering the Limitation of Coolant Availability,it is desired to vary the vacuum level referring to coolant temperature. You can check vacuum levels at different boiling points in the Chart/Table.

Rotary Evaporator Solvent chart can be considered for Batch Distillation in Glass-lined Reactor(GLR) or SS Reactor

All values of vacuum are calculated values for Pure Solvents. So due care is to be taken. If an Accurate Boiling Point is required, please take the experimental value.

Rotary Evaporator 50 liter

The chart gives Boiling points under different vacuum for Solvents like Water, Ethanol, Methanol,      Ethyl Acetate, Acetone, N-Hexane, toluene, Methylene chloride (DCM/MDC), Acetic Acid, O-Xylene, Pyridine, Methyl Isobutyl  Ketone(MIBK), Tetrahydrofuran(THF), Chloroform Acetonitrile, N-Heptane, Acetic Anhydride

Rotary Evaporator Solvent chart shows  Boiling Point, Pressure, and Vacuum for  Particular Solvents in different columns. The vacuum is to be considered a Gauge vacuum. To arrive at Guage vacuum figures, we considered barometric Pressure at mean sea Level i.e. 760MM Hg. Please consider the Barometric Pressure of the site in place of 760 MM Hg if it is higher than the Mean Sea level.

Boiling Point of Solvents at Different Vacuums in MM of Hg
Solvent Water Ethanol Methanol Ethyl acetate
NBP,0C 100.05 78.4 64.7 77.2
Temperature, OC Pressure Vacuum Pressure Vacuum Pressure Vacuum Pressure Vacuum
-10 15.5 744.5 13.5 746.5
0 11.9 748.1 30.1 729.9 25.3 734.7
10 23.5 736.5 55.4 704.6 44.9 715.1
20 17.4 742.6 44 716 97.3 662.7 75.8 684.2
30 31.7 728.3 78.5 681.5 163.8 596.2 122.5 637.5
40 55.2 704.8 134.2 625.8 265.8 494.2 190.8 569.2
50 92.5 667.5 220.8 539.2 416.9 343.1 287.4 472.6
60 149.4 610.6 351 409 634.5 125.5 420.4 339.6
64.5 183.6 576.4 428.3 331.7 760 0 494.5 265.5
70 233.8 526.2 541.2 218.8 598.6 161.4
77.2 316.6 443.4 725.6 34.4 760 0
78.3 332 428 760 0
80 355.3 404.7
90 525.9 234.1
100 760 0
110
120
Pressure and Vacuum is in MM of Hg A negative value in a vacuum is a positive pressure
Solvent Acetone N -Hexane Toluene Methelene Chloride
NBP,0C 56.3 68.8 110.7 39.9
Temperature, OC Pressure Vacuum Pressure Vacuum Pressure Vacuum Pressure Vacuum
-10 40.9 719.1 25.9 734.1 86.6 673.4
0 70.5 689.5 45.3 714.7 144.4 615.6
10 116.4 643.6 75.7 684.3 12.4 747.6 230.8 529.2
20 184.9 575.1 121.2 638.8 21.8 738.2 355.5 404.5
30 283.6 476.4 187.1 572.9 36.7 723.3 529.8 230.2
39.8 417.8 342.2 276.8 483.2 58.5 701.5 760 0
40 421.7 338.3 279.5 480.5 59.2 700.8
50 610.1 149.9 405.4 354.6 92.1 667.9
56.3 760 0 505.5 254.5 119.8 640.2
60 572.8 187.2 139 621
68.7 760 0 194.4 565.6
70 203.7 556.3
80 291.2 468.8
90 406.7 353.3
100 556.3 203.7
110 746.6 13.4
110.6 760 0
120
Pressure and Vacuum is in MM of Hg A negative value in a vacuum is a positive pressure
Solvent Acetic Acid o-Xylene Pyridine MIBK
NBP,0C 117.9 144.4 115.3 116.4
Temperature, OC Pressure Vacuum Pressure Vacuum Pressure Vacuum Pressure Vacuum
-10
0
10
20 11.3 748.7 15.7 744.3 15 745
30 20.3 739.7 27.2 732.8 26.2 733.8
40 34.7 725.3 15.3 744.7 45.1 714.9 43.8 716.2
50 57.1 702.9 25.5 734.5 72.1 687.9 70.2 689.8
60 90.5 669.5 40.8 719.2 111.3 648.7 108.7 651.3
70 139 621 63.2 696.8 166.6 593.4 163 597
80 207.4 552.6 95 665 242.6 517.4 237.4 522.6
90 301.4 458.6 139 621 344.7 415.3 337.1 422.9
100 427.9 332.1 198.5 561.5 478.7 281.3 467.6 292.4
110 594.5 165.5 277.4 482.6 651.4 108.6 635.1 124.9
115.3 700.9 59.1 327.9 432.1 760 0 740.2 19.8
116.2 721.2 38.8 337.6 422.4 760 0
117.9 760 0 356 404
120 379.9 380.1
140 675.3 84.7
144.4 760 0
Pressure and Vacuum is in MM of Hg A negative value in a vacuum is a positive pressure
Solvent Tetrahydrofuran Chloroform Acetonitrile N-Heptane
NBP,0C 65.94 61.14 81.64 98.44
Temperature, OC Pressure Vacuum Pressure Vacuum Pressure Vacuum Pressure Vacuum
-10 34.6 725.4 12.5 747.5
0 48 712 59.9 700.1 23.1 736.9 11.4 748.6
10 80.6 679.4 98.9 661.1 40.5 719.5 20.7 739.3
20 129.7 630.3 156.7 603.3 67.8 692.2 35.6 724.4
30 201.1 558.9 239.7 520.3 109 651 58.5 701.5
40 301.8 458.2 355.1 404.9 169.1 590.9 92.7 667.3
50 439.6 320.4 511.4 248.6 254.1 505.9 141.9 618.1
60 623.9 136.1 717.9 42.1 371.1 388.9 210.6 549.4
61.7 661.7 98.3 760 0 395.4 364.6 225 535
66 760 0 459.2 300.8 262.9 497.1
70 528 232 304 456
80 734.1 25.9 428.1 331.9
81.1 760 0 443.8 316.2
90 589.6 170.4
98.4 760 0
100
Solvent Acetic Anhydride
NBP,0C 138.84
Temperature, OC Pressure Vacuum
-10
0
10
20
30
40 13.3 746.7
50 23.2 736.8
60 38.8 721.2
70 62.4 697.6
80 96.9 663.1
90 146.2 613.8
100 214.3 545.7
110 306.6 453.4
120 428.9 331.1
130 587.8 172.2
138.6 760 0

Please visit the following links also

Industrial Rotary Evaporator

Vacuum Controller for Rotary Evaporator

Distillation Set up over Glass-lined Reactor(GLR )

Borosilicate Glass as MOC

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