Difference between revisions of "Diffusion Pump Oil Cross-Reference"

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m (fixed refference error)
(added more info on Leybold oils and even more oils)
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   ! Name !! Vapor Pressure !! Viscosity 25°C !! Boiling Point 0.06 torr !! Flashpoint !! Condensation Point !! Density
 
   ! Name !! Vapor Pressure !! Viscosity 25°C !! Boiling Point 0.06 torr !! Flashpoint !! Condensation Point !! Density
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  | Oil D ||  ||  mm²/s || °C ||  °C || °C ||  kg/m³
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  | Oil E ||  ||  mm²/s || °C ||  °C || °C ||  kg/m³
 
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   | Diffilen Leicht ||  ||  mm²/s || °C ||  °C || °C ||  kg/m³
 
   | Diffilen Leicht ||  ||  mm²/s || °C ||  °C || °C ||  kg/m³
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Note: Oil D is similar to Apiezon A, and Oil E to Apiezon B. <ref name="Pirani_1961"/>
  
 
== Silicone Oils ==
 
== Silicone Oils ==
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= Apiezon =
 
= Apiezon =
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Formerly part of Shell Chemical Co. Ltd.<ref name="Pirani_1961"/>
 
== Hydrocarbon Oils ==
 
== Hydrocarbon Oils ==
 
{| class="wikitable" style="text-align:center;"
 
{| class="wikitable" style="text-align:center;"
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|}
 
|}
 
= National Researach Corporation =
 
= National Researach Corporation =
Britain
 
 
== chlorinated diphenyl ==
 
== chlorinated diphenyl ==
 
{| class="wikitable" style="text-align:center;"
 
{| class="wikitable" style="text-align:center;"
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|}
 
|}
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= Vacuum Industrial Applications Ltd. =
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== chlorinated diphenyl ==
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{| class="wikitable" style="text-align:center;"
 +
  |+ Physical Properties
 +
  |-
 +
  ! Name !! Vapor Pressure !! Viscosity 25°C !! Boiling Point !! Flashpoint !! Density !! Molecular Weight !! Formula
 +
  |-
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  | Viacoil 10 ||  3 x 10⁻⁴ torr <ref name="Pirani_1961"/> ||  mm²/s || °C || °C ||  1540 kg/m³ <ref name="Pirani_1961"/> || 326 Da <ref name="Pirani_1961"/>|| C₈H₁₆(COOC₄H₉)₂ <ref name="Pirani_1961"/>
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  |-
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|}
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 +
== d-2-ethyl hexyl phthalate ==
 +
{| class="wikitable" style="text-align:center;"
 +
  |+ Physical Properties
 +
  |-
 +
  ! Name !! Vapor Pressure !! Viscosity 25°C !! Boiling Point !! Flashpoint !! Density !! Molecular Weight !! Formula
 +
  |-
 +
  | Viacoil 20 || 3 x 10⁻⁸ torr<ref name="Pirani_1961"/>  ||  mm²/s || 143.5 °C<ref name="Pirani_1961"/> || °C ||  910.3 kg/m³ <ref name="Pirani_1961"/> || 426.3 Da<ref name="Pirani_1961"/> || C₈H₁₆(COOC₄H₁₇)₂<ref name="Pirani_1961"/>
 +
  |-
 +
  | Viacoil 40 || 3 x 10⁻⁷ torr<ref name="Pirani_1961"/>  ||  mm²/s || 122.5 °C<ref name="Pirani_1961"/> || °C ||  910.3 kg/m³ <ref name="Pirani_1961"/> || 390.3 Da<ref name="Pirani_1961"/> || C₆H₄(COOC₄H₁₇)₂<ref name="Pirani_1961"/>
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  |-
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|}
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= Unknown Maker =
 
= Unknown Maker =

Revision as of 01:32, 23 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] °C 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] °C 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] °C 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 phthalate 3 x 10⁻⁵ torr [2] mm²/s 90°C [2] °C 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] °C 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] °C 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]


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