Apiezon Grease; Type L

Grease L is a petroleum hydrocarbon grease, containing no additives. Very low vapor pressure (@20°C of 8×10-11 torr), high vacuum grade. Type L is widely used in the stationary phase of gas liquid chromatography, and may be used on all ground joints in a vacuum system (not for stopcocks). Its solubility is as follows: in Ethanol at 20°C-0.003%; 60°C-0.005%; 100°C-0.011%; 150°C-0.011%. Grease L softens and melts at about 47°C and it is not recommended for joints where temperatures exceed more than 30°C in use. Grease T is recommended for these higher temperatures.

MSDS

Technical data sheet

 

REF: D6070 Categories: ,

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Description

Excellent lubricants
High purity, low vapor pressure – non-contamination in analysis
The working temperature range of each grease is dependent on the grade that is used
Easily applied, easily cleaned off
Silicone free. This benefits scientific users because the risk of sample contamination and consequently the risk of interference in analytical techniques such as infra-red or mass spctrometry, etc. is avoided
Approved by NASA and NATO

Typical Property AP101 AP100 H L M N T
Main area of application General Lubricating Cryogenic High Temp High Vacuum General Vacuum Medium Temp
Melting Point: °C
ASTM.D 566  °F

>200
>392

42-52
108-126
does not melt 42-52
108-126
40-60
104-140
42-52
108-126
112-137
233-278
Working temp. range -40-180
-40-365
10-30
50-86
-10-240
14-464
10-30
50-86
10-30
50-86
-269-30
-452-86
10-120
50-248
Vapor Pressure
Torr @20°C
<1.0×10-5 7.0×10-11 1.7×10-9 7×10-11 1.7×10-9 6×10-10 4.6×10-9
Relative Density 20°C 0.981 1.042 0.918 0.896 0.894 0.911 0.912
Radiation Resistance No No No Yes Yes No No
Outgassing
Characteristics  TML
ASTMS .E         CVCM
595-90
/
/
<1.0%
<0.1%
<1.0%
<0.1%
/
/
<1.0%
<0.1%
/
/
/
/
Lubricity 4 Ball Test
ASTM .D 2763
(IP 239), Kg
450 450 250 150 140 150 /
Viscosity of molten
grease, cP
50°C
100°C
/
/
/
/
/
/
766
62.3
413
29.8
Coefficient of
expansion per °C
over 20°C-30°C
0.00066 / / 0.00076 0.00075 0.00072 0.00073
Thermal conductivity,
w/m°C
/
/
/
/
/
/
0.216
/
0.194
/
0.194
0.095
/
/
Latent heat of fusion,
cal/g
/ / / 15.1 18.7 15.0 /
Fusion Peak °C / / 25 32 34 31 *
Vol. resistivity, cm / / / 1.2×1016 2.6×1016 2.0×1016 3.3×1016
Permittivity / / / 2.3 2.1 2.3 2.3
Loss tangent / / / <0.0001 <0.0001 <0.0001 <0.0001
Surface breakdown
at flash over, kV
/ / / 24 28 27 24
Electric strength, V / / / 730 850 820 730

* Too close to room temperature to measure.

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Informations complémentaires

Unit

25g/tube, 50g/tube

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