SIS Catalog Online

F15

Diffusion Pump Fluids

Scientific Instrument Services, Inc.

™

FAX: 908-806-6631

www.sisweb.com/catalog/08/F15

INVOIL

®

705 Diffusion Pump Fluid

•

Ultra High Vacuum Applications

•

Extremely Low Vapor Pressure Capabilities

•

Little or No Backstreaming

•

Identical to Dow Corning 705

I

nvoil 705 silicone diffusion pump fluid is a single component fluid designed for ultra
high vacuum systems in the 10

-7

to 10

-9

torr range. With the use of traps, Invoil 705

is capable of attaining a pressure of 10

-11

torr. The low vapor pressure, low back-

streaming rate and the high resistance to oxidation and radiation make this diffusion pump
fluid ideal for many ultra high vacuum applications such as those in mass spectrometers
and electron microscopes.

INVOIL

®

704 Diffusion Pump Fluid

•

Superior Vapor Pressure Capabilities

•

Resistant to Oxidation

•

Thermal Stability

•

Quick Pumpdown Cycles

•

Identical to Dow Corning 704

I

nvoil 704 is a single component silicone diffusion pump fluid for high vacuums 10

-6

to 10

-8

torr range. This diffusion pump fluids’ low vapor pressure and thermal

stability make it popular in many systems such as mass spectrometers and

electron microscopes. It performs well in most applications and offers quick pumpdown,
even after exposure to air under operating conditions.

Specifications

Vapor Pressure @ 25°C..............2 x 10

-8

torr

Boiling Point @.50 torr: ..........220°C (428°F)
Viscosity @ 40°C : ..............24.2 cst (115 SUS)
Viscosity @ 100°C: .............6.2 cst (46.5 SUS)
Pour Point: ...............................<-9°C (<16°F)
Flash Point: .............................221°C (430°F)
Fire Point: ........................................None
Density: ................................1.07 gm/cc

Specifications

Vapor Pressure @ 25°C: ...2.4 x 10

-9

torr

Boiling Point @ .50 torr: ...250°C (482°F)
Viscosity @ 40°C: .............66cst (306 SUS)
Viscosity @100°C: ...........9.8 cst (58.4 SUS)
Pour Point: .........................<0°C (<32°F)
Flash Point: ......................243°C (470°F)
Fire Point: .........................None
Density: ............................1.09 gm/cc

INVOIL

®

702 Diffusion Pump Fluid

•

Superior Vapor Pressure Capabilities

•

Resistant to Oxidation

•

Thermal Stability

•

Quick Pumpdown Cycles

I

nvoil 702 is designed for the rapid pumping of large
volumes of gas. It has the important advantage of thermal stability. The silicone
based fluid is resistant to air at operating temperatures, so the pumps require no

cooling between cycles.

Specifications

Vapor Pressure @ 25°C ..............3.3 x 10

-6

torr

Boiling Point @.50 torr: .............190°C (374°F)
Viscosity @ 40°C :................26.8 cst (127.3 SUS)
Viscosity @ 100°C: ................6.2 cst (46.5 SUS)
Pour Point: ..................................<0°C (<32°F)
Flash Point: ...............................193°C (380°F)
Fire Point: ..........................................None
Density: ..................................1.07 gm/cc

Part No.

Description

IN702 Part #IN702--Click to order
Current Price: $109.45
Unit of Measure: EA
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

Invoil 702, 500cc bottle

IN702-1 Part #IN7021--Click to order
Current Price: $510.00
Unit of Measure: GL
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

Invoil 702, 1 gal. bottle

Part No.

Description

IN704 Part #IN704--Click to order
Current Price: $135.00
Unit of Measure: Bottle
Est. Ship Weight=1 lbs
Quantity in Stock=2

Invoil 704, 500cc bottle

IN704-1 Part #IN7041--Click to order
Current Price: $680.00
Unit of Measure: Bottle
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

Invoil 704, 1 gal. bottle

Part No.

Description

IN705 Part #IN705--Click to order
Current Price: $208.00
Unit of Measure: Bottle
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

Invoil 705, 500cc bottle

IN705-1 Part #IN7051--Click to order
Current Price: $1230.00
Unit of Measure: Bottle
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

Invoil 705, 1 gal. bottle

Related information may be found on the following pages of our web site:

Page	Parts
Diffusion Pump Oils for HP Mass Specs	IN704, IN705
Invoil® 705 diffusion pump fluid, pg F12	IN7051, IN705
Invoil 704 Diffusion Pump Fluid, pg F12	IN7041, IN704

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