Use for matching refractive index of BK7 Schott glass, such as with prisms to slides. This is 2 pints.
nF-nC = 0.0148
Abbe vD: (nD-1)/nF-nC) = 35.0
Temperature coefficient: dnD/dt 15-35° C = -0.000392
Typical characteristics:
Composition: Mixed phthalate esters
Appearance: Colorless liquid
Odor: Slight
Color stability in sun: No visible sign after 5 months, may slightly discolor after one year with slight precipitate after 10 years.
Size:16 oz, 1 Gallon, 5 Gallon.
Index change rate by evaporation:Very low: -0.0001 expected: exposed surface area to volume ratio of 0.2 cm2/cc @ 25° C for 32 days.
Pour point: < 45° C
Boiling Point: > 370° C
Flash Point: >199° C
Density: 1.059 g/cc @ 25° C
Coef. of thermal expansion: 0.0007 cc/cc/° C
Specific Heat: ~0.46 cal/g/° C @ 25° C
Thermal conductivity: ~ 0.00032 cal/sec/cm2 /° C – 1 cm thickness [~ 0.13 watts/meter/° K]
Viscosity (centistokes at 25° C): 41
(centistokes at 15° C): 62
(centistokes at 35° C): 27
Surface tension: 34 dynes/cm @ 25° C
Soluble: Acetone, carbon tetrachloride, ethanol, ethyl ether, Freon TF, heptane, methylene chloride, naptha, toluene, turpentine, xylene
Insoluble: Water
Compatible:10 month immersion @ 25° C: acrylic, cellulose acetate, epoxy, nylon, polycarbonate, polyethylene, polypropylene, phenolic, silicone, and fluorosilicone rubber, aluminum, brass, copper, steel
Incompatible: Polystyrene, polyurethane, polyvinyl chloride, latex and neoprene rubber, Tygon (acrylic and polycarbonate @ 55° C)
Toxicity: Practically non-toxic
| Source or Spectral Line | Wavelength Å 1 mm | Refractive Index 25° C 1 cm | %Transmissance 25° C 10 cm |
| near UV cut off | 3100 | 1.587 74 | 50 |
| l (Hg) | 3650 | 1.557 99 | 88 28 |
| h (Hg) | 4047 | 1.5435 100 | 96 66 |
| F’ (Cd) | 4800 | 1.5283 100 | 99 89 |
| F (H) | 4861 | 1.5274 100 | 99 90 |
| e (Hg) | 5461 | 1.5204 100 | 100 96 |
| D (Na D1, D2 mean) | 5893 | 1.5167 100 | 100 97 |
| HeNe Laser | 6328 | 1.5139 100 | 100 98 |
| C’ (Cd) | 6439 | 1.5133 100 | 100 99 |
| C (H) | 6563 | 1.5126 100 | 100 99 |
| Ruby Laser | 6943 | 1.5108 100 | 100 98 |
| GaAs Laser | 8400 | 1.5062 100 | 100 97 |
| Nd:YAG Laser | 10648 | 1.503 100 | 97 63 |
| Diode | 13000 | 1.501 99 | 93 49 |
| Diode | 15550 | 1.500 99 | 87 24 |
