Hemispheres & Hemicylinders

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Harrick Scientific offers several hemispheres and hemicylinders for spectroscopic applications in Al₂O₃, Ge, Si and ZnSe. Our standard sizes are listed below. We welcome the opportunity to quote on other sizes and materials to meet your needs.

Ready to place an order? Need Help? Please call Customer Service at 1-800-248-3847, or click on the button below to send us an email.

 
Model No. Product Price
EB7XBD Hemicylinder Al₂O₃ 12.5 x 25 mm (r x l) N/A
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Model No. Product Price
EJ6XBB Hemisphere Ge 12.5mm radius $1,328.00
GATR-ATR-J1 Ge Mounted Hemisphere for VariGATR $2,435.00
 
Model No. Product Price
EE6XBB Hemisphere Si 12.5 mm radius $1,254.00
 
Model No. Product Price
EM6XBB Hemisphere ZnSe 12.5mm radius $1,245.00
UV-Vis-IR Optical Materials for Hemispheres & Hemicylinders
  n KH
(psi)		 MOR
(psi)		 useful range cm-1 (μm) chemical properties
Windows
1-2mm		 IRE
70mm
Al2O3 1.76 1370 65,000† 66,000-2000
(0.15-5.0)		 33,000-2800
(0.3-3.7)		 Slightly soluble in acids and bases
Ge 4.0 550 7000 5000-600
(2.0-17)		 5000-900
(2.0-1.4)		 Insoluble in water, soluble in hot H2So4 agua regia
Si 3.42 1150 9000 10,000-100
(1.0-100)		 9500-1500 350-FIR
(1.06-6.7 30-FIR)		 Insoluble in most acids and bases; soluble in HF and HNO3
ZnSe 2.40 150 8000 20,000-500
(0.5-20)		 20,000-700
(0.5-14.3)		 Soluble in strong acids; dissolves in HNO3
n: Refractive IndexKH: Knoop HardnessMOR: Rupture Modulus