6 . HATR Sampling Accessory User’s Guide
Cleaning ZnSe crystals
Avoid contact of the crystal with oxidizers and acids. ZnSe can be cleaned in pure dry acetone
or methanol using a soft, lint-free cloth. Dry in a current of warm air so that there is no
possibility of condensation forming on the crystal. Other suitable solvents are petroleum ether
and hexane. It may also be cleaned in some commercial laboratory detergents, but they
must be neutral. Alkaline solutions will slightly etch the surface, and acids will severely attack
the material. A final rinse in distilled water and then drying in a current of warm air is
recommended.
Ge (germanium) crystals
WARNING
During routine use of your HATR Sampling Accessory the Ge crystal
presents no hazard, but:
DO wear protective gloves when handling the crystal.
May be harmful if ingested in quantity, and may irritate or cause
physical damage to eyes.
DO NOT use acids to wash the crystal.
Ge can react violently with oxidizers, and can ignite in contact with
chlorine and bromine.
Cleaning Ge crystals
Clean the crystal using an organic solvent; do not use acids or oxidizers.
AMTIR-1 crystals
WARNING
During routine use of your HATR Sampling Accessory the
AMTIR-1 crystal presents no hazard, but:
DO wear protective gloves when handling the crystal.
DO NOT use strong acids, strong bases or strong oxidizers with
the AMTIR-1 crystal.
Cleaning AMTIR-1 Crystals
Use an organic solvent to clean the crystal.
