Name: Believe It Eco-705 Silicone Diffusion Pump Oil With A 40% Price Cut [YhKwNirB]
Brand: mappa-mercia.org
SKU: HBS4559835501
Price: 57.99 USD
Availability: InStock
Rating: 4.04 (954 reviews)

Description
Specifications
MSDS
Buyer's Guide

ECO-705 diffusion pump oil is the perfect replacement for Dow Corning DC-705 diffusion pump oil that offers higher performance with a longer service life. We guarantee you will not find a better replacement for DC-705.

ECO-705 is a clear, single component, high viscosity pentaphenyl-trimethyl-trisiloxane silicone fluid manufactured specifically for use in diffusion pumps with an ultra-high vacuum range of 10E-10 torr untrapped and 10E-11 torr trapped.

Compared to ECO-702 and ECO-704, ECO-705 diffusion pump oil offers the highest phenyl content as well as the lowest vapor pressure allowing the most resistance to oxidation and radiation. Therefore, if you're in an application where contamination is a factor, we highly suggest using ECO-705.

As our top-of-the-line diffusion pump fluid, the ECO-705 is an excellent choice for space-simulation chambers, thin film coating systems, plasma physic research, and in high purity metalizing applications where thermal, radiation and chemical stability as well as quick pump-down is a requirement.

*Next day shipping is available only when orders are placed before 12PM EST.

Compare Specifications

Specifications	ECO-705	DC-705 (Dow Corning, Discontinued)
Chemical Profile	Penta Phenyltri-methyltrisiloxane	Penta Phenyltri-methyltrisiloxane
Color	Transparent	Transparent
Ultimate Vacuum (untrapped)	10E-9 to 10E-10 torr	10E-9 to 10E-10 torr
Extrapolated Vapor Pressure	3 x 10E-10 torr	3 x 10E-10 torr
Specific Gravity at 25°C	1.09	1.09
Viscosity at 25°C	175 cSt	175 cSt
Flash Point (open cup)	243°C	243°C
Boiling Point (at 0.5 torr)	245°C	245°C
Hazardous Ingredients	None	None

SPECIFICATIONS	ECO-702	ECO-704	ECO-705
Chemical Profile	Mixed Phenylmethyl-dimethyl cyclosiloxane	Tetramethyltetraphenyl-Trisiloxane	Penta phenyltri-methyltrisiloxane
Color	Clear/Light Straw	Transparent	Transparent
Ultimate Vacuum (untrapped)	10E-6 torr	10E-7 to 10E-8 torr	10E-9 to 10E-10 torr
Ultimate Vacuum (trapped)	-	to 10E-11 torr	10E-11 torr
Extrapolated Vapor Pressure	1 x 10E-6 torr	2 x 10E-8 torr	3 x 10E-10 torr
Specific Gravity at 25°C	1.07	1.07	1.09
Viscosity at 25°C	45 cSt	39 cSt	175 cSt
Flash Point (open cup)	193°C	221°C	243°C
Boiling Point (at 0.5 torr)	180°C	215°C	245°C
Typical Boiler Temperature	220°C	230°C – 240°C	250°C – 260°C
Surface Tension	30 dynes/cm	37.3 dynes/cm	36.5 dynes/cm
Heat of Vaporization (kcal/g mole)	21.7/190°C	25.5/200°C	28.2/250°C
Refractive Index at 25°C / 77°F	1.5550 – 1.5650	1.5500 – 1.5600	1.5765 – 1.5785
Congealing Point	-	-35°C / -31°F	-14 to -18°C / 6.8 to -0.4°F
Hazardous Ingredients	None	None	None
Shelf Life	5 Years	5 Years	5 Years

If you have any questions regarding the MSDS-files, feel free to contact us.

Download US Version: ECO-705 Diffusion Pump Oil MSDS (ver. us)

Download EU Version: ECO-705 Diffusion Pump Oil MSDS (ver. eu)
ECO-702
ECO-702 is by far the most affordable type of silicone diffusion pump oil and is considered to be a general-purpose oil recommended for larger volumes of gas and can attain chamber vacuum pressures up to 10E-6 torr. ECO-702 is ideal for general manufacturing that gives off a larger amount of gas. A part from diffusion pumps, ECO-702 can alternatively be used in any vapor ejector pump to attain a maximum vacuum of 10E-5 torr.
ECO-704
ECO-704 is the most commonly used diffusion pump oil on the market. It is suitable for a wide range of heavy operations and offers a quick pump-down. It is a single-component oil with a pure chemical profile of Tetramethyltetra-phenyltrisiloxane which can produce a ultimate vacuum of 10E-7 torr to 10E-8 torr in a untrapped state and 10E-10 torr to 10E-11 torr in a trapped state. The main reason why so many manufacturers choose ECO-704 is due to its ability to withstand tough and rugged operations while producing an extremely powerful vacuum. Most diffusion pump oils cannot come in the slightest contact with air, but ECO-704 can actually handle air-exposure when operating temperatures are reached.
ECO-705
ECO-705 is the most advanced diffusion pump oil up to date. Just like ECO-704, it is a single-component oil and is made of high-quality and pure Penta phenyl tri-methyltrisiloxane. ECO-705 is basically an upgraded version of ECO-704 with a ultrahigh vacuum of 10E-9 torr to 10E-10 torr in a untrapped state, and up to 10E-11 torr when trapped. It offers such powerful vacuum and low vapor pressure that most diffusion pumps operating on ECO-705 can withstand radiation and do not need a cold trap or refrigeration because of its ultrahigh and yet smooth applications. Overall, all three types of diffusion pump oils by Enparticles have their own unique profiles and advantages. If you have questions, make sure to read our FAQs or contact us.