PSK54 by Schott

Obsolete Unknown Environmentally Dangerous

PSK54 by Schott is an obsolete optical glass. It transmits from 0.32 to 2.33 µm with an nd of 1.58599 and a Vd of 64.599863. It has high thermal expansion (CTE of 11.9×10⁻⁶/K), below average chemical resistance, high relative cost, and dangerous environmental properties.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.32–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.32–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.320–2.325 µm
Optical Properties
Refractive Index (nd) 1.58599
Abbe Number (Vd) 64.599863
Dispersion Formula Sellmeier
Wavelength Range 0.32 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{1.31533\,\lambda^2}{\lambda^2 - 0.00719144} + \frac{0.163047\,\lambda^2}{\lambda^2 - 0.0229837} + \frac{0.691495\,\lambda^2}{\lambda^2 - 91.1848}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 11.9
TCE 100/300°C (10-6/K) 13.3
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.82 \times 10^{-5} + 2(4.07 \times 10^{-9})\,\Delta T + 3(-8.7 \times 10^{-12})\,\Delta T^2 + \frac{4.38 \times 10^{-7} + 2(5.64 \times 10^{-10})\,\Delta T}{\lambda - 0.154}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.52
Relative Cost 12.02
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance 1
Stain Resistance 0
Acid Resistance 52
Alkali Resistance 2
Phosphate Resistance 4
Notes

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Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
K-PSK300(M) Sumita 1.5969 65.3
K-PSK300 Sumita 1.5995 65.6
P-SK60 Sumita 1.59087 62.3
S-PHM53 Ohara 1.603001 65.443648
H-ZPK2A CDGM 1.603001 65.45962
PHM53 Ohara 1.603001 65.479908
MC-PCD51-70 Hoya 1.59271 66.97
MP-PCD51-70 Hoya 1.59271 66.97
M-PCD51 Hoya 1.59201 67.02
PCD51 Hoya 1.59349 67.0
Similar Glasses (Schott)
Glass Manufacturer nd Vd Compare
PSK52 Schott 1.603101 65.409791
PSK2 Schott 1.56873 63.083014
N-SK5 Schott 1.58913 61.27
N-SK5HTi Schott 1.58913 61.27
SK5 Schott 1.58913 61.266803
P-SK58A Schott 1.58913 61.15
N-PSK57 Schott 1.5924 68.398667
N-PSK53A Schott 1.618 63.39
N-SK14 Schott 1.60311 60.6
SK14 Schott 1.60311 60.596819
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