Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Manufacture, use & exposure

Uses at industrial sites

Uses at industrial sites

Registration/ Notification status for the use:
use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant
Use name:
Use of multicrystalline gallium arsenide - Growth of monocrystalline ingot
Contributing activity / technique for the environment
Name of activity / technique:
Use of multicrystalline gallium arsenide - Growth of monocrystalline ingot
Environmental release category (ERC):
ERC5: Use at industrial site leading to inclusion into/onto article
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Operation of crystallisation furnaces, annealing
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
Name of activity / technique:
Cleaning and maintenance of crystallisation furnaces
Process category (PROC):
PROC28: Manual maintenance (cleaning and repair) of machinery
Name of activity / technique:
Finishing of crystals
Process category (PROC):
PROC 21: Low energy manipulation of substances bound in materials and/or articles
Product category used:
PC 7: Base metals and alloys
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
SU 24: Scientific research and development
Subsequent service life relevant for this use:
Related assessment:
use assessed in an own CSR