Diffusion Pump Oil Cross-Reference: Difference between revisions

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   | A || 2 x 10⁻⁵ Torr<ref name="Pirani_1961"/> || mm²/s || mm²/s || 110°C<ref name="Pirani_1961"/> || °C || °C || 873.5 kg/m³<ref name="Pirani_1961"/> (at 15°C) || 414 Da<ref name="Pirani_1961"/>
   | A || 2 x 10⁻⁵ Torr<ref name="Pirani_1961"/> || mm²/s || mm²/s || 110°C<ref name="Pirani_1961"/> || °C || °C || 873.5 kg/m³<ref name="Pirani_1961"/> (at 15°C) || 414 Da<ref name="Pirani_1961"/>
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   | B  || 4 x 10⁻⁷ Torr<ref name="Pirani_1961"/> || mm²/s || mm²/s || 125°C<ref name="Pirani_1961"/> || °C || °C || 871 kg/m³<ref name="Pirani_1961"/> (at 15°C)|| 468 DA<ref name="Pirani_1961"/>
   | B  || 4 x 10⁻⁷ Torr<ref name="Pirani_1961"/> || mm²/s || mm²/s || 125°C<ref name="Pirani_1961"/> || °C || °C || 871 kg/m³<ref name="Pirani_1961"/> (at 15°C)|| 468 Da<ref name="Pirani_1961"/>
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   | C || 1 x 10⁻⁸ Torr<ref name="Pirani_1961"/> || mm²/s || mm²/s || °C || °C || °C || kg/m³ || 574 DA<ref name="Pirani_1961"/>
   | C || 1 x 10⁻⁸ Torr<ref name="Pirani_1961"/> || mm²/s || mm²/s || °C || °C || °C || kg/m³ || 574 Da<ref name="Pirani_1961"/>
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   |-
   | G || 1 x 10⁻⁶ Torr<ref name="Pirani_1961"/> || mm²/s || mm²/s || °C || °C || °C || kg/m³ ||
   | G || 1 x 10⁻⁶ Torr<ref name="Pirani_1961"/> || mm²/s || mm²/s || °C || °C || °C || kg/m³ ||
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[[Category:Cross Refference]]
[[Category:Pages with reference errors]]


= Cambridge Mill Products =
= Cambridge Mill Products =

Latest revision as of 00:01, 24 January 2025

Unlike the Turbomolecular Pump the Diffusion Pump recquires a working fluid to move gas molecules. This fluid is commonly reffered to as an oil, due to the fluids resembling oils in feel and consitency. Below is a list of various Diffusion Pump Oils and their physical properties.


Dow Corning

Silicone Oils

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point 0.5 torr Flashpoint Condensation Point Density
DC 702[1] 1 x 10⁻⁶ Torr [1] [2] 45 mm²/s [1] 180°C [1] [2] ≥ 193°C [1] °C 1070 kg/m³ [1]
DC 703[2] 1 x 10⁻⁷ Torr [2] mm²/s 200°C [2] °C °C 1090 kg/m³ [2]
DC 704[3] 2 x 10⁻⁸ Torr 39 mm²/s 215°C 221°C °C 1070 kg/m³
DC 705[4] 3 x 10⁻¹⁰ Torr 175 mm²/s 245°C 243°C °C 1090 kg/m³

Kurk J. Lekser Corporation

Silicone Oils

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point 0.06 torr Flashpoint Condensation Point Density
KJLC 704[5] 8.4 x 10⁻⁸ Torr 46 mm²/s 223°C 220°C °C 1100 kg/m³
KJLC 704-T[6] 8.4 x 10⁻⁸ Torr 37 mm²/s 210°C 220°C °C 1070 kg/m³
KJLC 705[7] 3 x 10⁻¹⁰ Torr 165-185 mm²/s 245°C 243°C °C 1090 kg/m³

VacOil

Silicone Oils

Physical Properties
Name Vapor Pressure Viscosity 25°C Flashpoint Condensation Point Density
DP Grade 704[8] 6.65 x 10⁻⁸ Torr 36 mm²/s ± 4 mm²/s ≥ 210°C ≥ -35°C 1050 ∼ 1080 kg/m³

Leybold

Hydrocarbon Oils

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point 0.06 torr Flashpoint Condensation Point Density
Oil D mm²/s °C °C °C kg/m³
Oil E mm²/s °C °C °C kg/m³
Diffilen Leicht mm²/s °C °C °C kg/m³
Diffilen mm²/s °C °C °C kg/m³
Diffilen Extra mm²/s °C °C °C kg/m³
Diffilen Ultra mm²/s °C °C °C kg/m³
LVO 500[9] 4 · 10⁻⁹ mBar mm²/s °C > 250 °C °C 868 kg/m³
LVO 521[10] 6 · 10⁻⁶ mBar mm²/s °C 196 °C °C 885 kg/m³

Note: Oil D is similar to Apiezon A, and Oil E to Apiezon B. [2]

Silicone Oils

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point 0.06 torr Flashpoint Condensation Point Density
LVO 521[11] 3 · 10⁻¹⁰ mBar mm²/s °C 240 °C °C 1095 kg/m³

Santovac

Polyphenyl Ether Oils

Physical Properties
Name Vapor Pressure Viscosity 38°C Viscosity 90°C Viscosity 260°C Boilding Point 0.5 Torr Flashpoint Condensation Point Density
Santovac 5[12] 4 x 10⁻¹⁰ Torr 363 mm²/s 13.1 mm²/s 1.2 mm²/s 275 °C 288°C 1198 kg/m³

Apiezon

Formerly part of Shell Chemical Co. Ltd.[2]

Hydrocarbon Oils

Physical Properties
Name Vapor Pressure Viscosity 20°C Viscosity 40°C Boiling Point (at 10⁻² Torr) Flashpoint Pour Point Density Molecular Weight
A 2 x 10⁻⁵ Torr[2] mm²/s mm²/s 110°C[2] °C °C 873.5 kg/m³[2] (at 15°C) 414 Da[2]
B 4 x 10⁻⁷ Torr[2] mm²/s mm²/s 125°C[2] °C °C 871 kg/m³[2] (at 15°C) 468 Da[2]
C 1 x 10⁻⁸ Torr[2] mm²/s mm²/s °C °C °C kg/m³ 574 Da[2]
G 1 x 10⁻⁶ Torr[2] mm²/s mm²/s °C °C °C kg/m³
BW 1 x 10⁻⁷ Torr[2] mm²/s mm²/s °C °C °C kg/m³
AP201[13] 4 x 10⁻⁶ Torr 76 mm²/s 22 mm²/s °C 196°C -30°C 885 kg/m³

Cambridge Mill Products

Silicone Oils

Physical Properties
Name Vapor Pressure Viscosity 25°C Flashpoint Density
CMP 704[14] 10⁻⁶ to 10⁻⁸ Torr mm²/s 221°C 1070 kg/m³

Ideal Vacuum Products

Silicone Oils

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density
IVP 702[15] 45 mm²/s 180°C 193°C 1090 kg/m³
IVP 704[16] 39 mm²/s 215°C 221°C 1065 kg/m³
IVP 705[17] 175 mm²/s 245°C 243°C 1090 kg/m³

Varian

Polyphenyl Ether Oils

Physical Properties
Name Vapor Pressure Viscosity 38°C Viscosity 90°C Viscosity 260°C Boilding Point 0.5 Torr Flashpoint pour Point Density
Neovac SY [18] mm²/s mm²/s mm²/s 275 °C 287°C 40°F 1195 - 1201 kg/m³

Concolidated Electrodynamics Corporation

i-diamyl sebacate

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Amoil 1 x 10⁻⁵ torr [2] mm²/s 111°C [2] 96°C[19] 1019 kg/m³ [2] 306.2 Da [2] C₆H₄(COOC₅H₁₁)₂ [2]
Amoil S 1 x 10⁻⁶ torr [2] mm²/s 111°C [2] 118°C[19] 925.1 kg/m³ [2] 343.3 Da [2] C₈H₁₆(COOC₅H₁₁)₂ [2]

n-dibutyl phthalate

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Butyl phthalate 3 x 10⁻⁵ torr [2] mm²/s 85°C [2] 94°C [19] 1046.5 kg/m³ [2] 278.1 Da [2] C₆H₄(COOC₄H₉)₂ [2]

n-dibutyl Sebacate

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Butyl Sebacate 2 x 10⁻⁵[19] / 3 x 10⁻⁵ torr [2] mm²/s 90°C [2] 103°C[19] 933 kg/m³ [2] 314.3 Da [2] C₈H₁₆(COOC₄H₉)₂ [2]

d-2-ethyl hexyl phthalate

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Octoil 3 x 10⁻⁷ torr[2] mm²/s 122.5°C[2] 125°C [19] 910.3 kg/m³ [2] 390.3 Da[2] C₆H₄(COOC₄H₁₇)₂[2]
Octoil S 3 x 10⁻⁸ torr[2] mm²/s 143.5°C[2] 140°C[19] 910.3 kg/m³ [2] 426.3 Da[2] C₈H₁₆(COOC₄H₁₇)₂[2]

National Researach Corporation

chlorinated diphenyl

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Narcoil 10 3 x 10⁻⁴ torr [2] mm²/s °C °C 1540 kg/m³ [2] 326 Da [2] C₈H₁₆(COOC₄H₉)₂ [2]

d-2-ethyl hexyl phthalate

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Narcoil 20 3 x 10⁻⁸ torr[2] mm²/s 143.5°C[2] °C 910.3 kg/m³ [2] 426.3 Da[2] C₈H₁₆(COOC₄H₁₇)₂[2]
Narcoil 40 3 x 10⁻⁷ torr[2] mm²/s 122.5°C[2] °C 910.3 kg/m³ [2] 390.3 Da[2] C₆H₄(COOC₄H₁₇)₂[2]

Vacuum Industrial Applications Ltd.

chlorinated diphenyl

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Viacoil 10 3 x 10⁻⁴ torr [2] mm²/s °C °C 1540 kg/m³ [2] 326 Da [2] C₈H₁₆(COOC₄H₉)₂ [2]

d-2-ethyl hexyl phthalate

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Viacoil 20 3 x 10⁻⁸ torr[2] mm²/s 143.5°C[2] °C 910.3 kg/m³ [2] 426.3 Da[2] C₈H₁₆(COOC₄H₁₇)₂[2]
Viacoil 40 3 x 10⁻⁷ torr[2] mm²/s 122.5°C[2] °C 910.3 kg/m³ [2] 390.3 Da[2] C₆H₄(COOC₄H₁₇)₂[2]

Litton Engineering Labs.

Naphthene Oils

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Molecular Lubricant A 1 x 10⁻⁶ torr [19] mm²/s °C °C 873.5 kg/m³[19] Da
Molecular Lubricant B 1 x 10⁻⁷ torr [19] mm²/s °C °C 871 kg/m³[19] Da

Unknown Maker

Physical Properties
Name Vapor Pressure Viscosity 25°C Boiling Point Flashpoint Density Molecular Weight Formula
Myvane 20 torr mm²/s °C °C 853 kg/m³ [2] Da


References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Kurt J. Lesker Specifications Table DC702
  2. ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 2.21 2.22 2.23 2.24 2.25 2.26 2.27 2.28 2.29 2.30 2.31 2.32 2.33 2.34 2.35 2.36 2.37 2.38 2.39 2.40 2.41 2.42 2.43 2.44 2.45 2.46 2.47 2.48 2.49 2.50 2.51 2.52 2.53 2.54 2.55 2.56 2.57 2.58 2.59 2.60 2.61 2.62 2.63 2.64 2.65 2.66 2.67 2.68 2.69 2.70 2.71 2.72 2.73 2.74 2.75 2.76 2.77 2.78 M. Pirani & J. Yarwood, Principles of Vacuum Engineering, (London: Chapman and Hall, 1961), Page 61 Table 2.2
  3. ↑ Kurt J. Lesker Specifications Table DC704
  4. ↑ Kurt J. Lesker Specifications Table DC705
  5. ↑ Kurt J. Lesker Specifications Table KJLC 704 & KJLC 704-T & KJLC 705
  6. ↑ Kurt J. Lesker Specifications Table KJLC 704 & KJLC 704-T & KJLC 705
  7. ↑ Kurt J. Lesker Specifications Table KJLC 704 & KJLC 704-T & KJLC 705
  8. ↑ VacOil® DP Grade 704 Diffusion Pump Oil - 500 cc/ml Specifications
  9. ↑ Fette Triebmittel Katalog Leybold S24
  10. ↑ Fette Triebmittel Katalog Leybold S24
  11. ↑ Fette Triebmittel Katalog Leybold S24
  12. ↑ Santovac 5(P) - Diffusion Pump Oil & Ultra Polyphenyl Ether Pump Fluid Specifications Table
  13. ↑ ApiezonAP201 DataSheet 1a Page 4
  14. ↑ Cambridge CMP 704 Silicone Diffusion Pump Fluid MSDS.pdf
  15. ↑ IVP 702 Diffusion Pump Oil SDS
  16. ↑ IVP 704 Diffusion Pump Oil SDS
  17. ↑ IVP 705 Diffusion Pump Oil SDS.pdf
  18. ↑ Santovac 5 Polyphenyl Ether Lubricant Diffusion Pump Oil SDS.pdf
  19. ↑ 19.00 19.01 19.02 19.03 19.04 19.05 19.06 19.07 19.08 19.09 19.10 L. H. Martin & R.D. Hill, A Manual of Vacuum Practice, (Melbourne University Press, 1947), Page 96
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