Type FF has virtually no background fluorescence which makes it ideal for observing low levels of fluorescence. It is highly stable, water white, and non-hydroscopic. Type FF can be substituted for all other fluorescence microscopy immersion oils in nearly all fluorescence applications.
OPTICAL & PHYSICAL PROPERTIES
Refractive Index @ 23°C: |
|
F Line (4861 A) |
1.4850 |
|
E Line (5461 A) |
1.4811 |
|
D Line (5893 A) |
1.4790 |
|
C Line (6563 A) |
1.4766 |
Dispersion: |
|
|
nF-nC |
0.0084 |
|
Abbe VD |
57.0 |
|
Abbe Ve |
56.5 |
Temperature Coefficient (15-35°C) |
-0.00037 |
Stability (change in nD25°C after 24 hrs. @ temp.) |
|
at 60°C: |
0 |
|
at 100°C: |
0 |
Fluorescence (1): |
|
|
Short UV: |
none |
|
Long UV: |
none |
Color: (Gardner) |
<1 |
Viscosity: +/-10% @ 23°C (centistokes) |
170 low |
Density: |
|
|
@ 23°C g/cc: |
0.877 |
|
(US) lb/gal |
7.32 |
Cloud Point: |
<-6°C |
Flash Point: |
420°F |
Neutralization No.: (mg KOH/gm) |
0.01 max |
*Relative to Cedarwood Oil