Gallium arsenide

H350
H372 (respiratory and haematopoietic systems)

10 - 100 tonnes per annum

SU 14: Manufacture of basic metals, including alloys
SU 16: Manufacture of computer, electronic and optical products, electrical equipment
SU 24: Scientific research and development

PC 33: Semiconductors
PC 7: Base metals and alloys

AC 2: Machinery, mechanical appliances, electrical/electronic articles

ERC 1: Manufacture of substances
ERC 5: Industrial use resulting in inclusion into or onto a matrix

PROC 13: Treatment of articles by dipping and pouring
PROC 15: Use as laboratory reagent
PROC 1: Use in closed process, no likelihood of exposure
PROC 21: Low energy manipulation of substances bound in materials and/or articles
PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
PROC 24: High (mechanical) energy work-up of substances bound in materials and/or articles
PROC 25: Other hot work operations with metals
PROC 26: Handling of solid inorganic substances at ambient temperature
PROC 2: Use in closed, continuous  process with occasional controlled exposure
PROC 3: Use in closed batch process (synthesis or formulation)
PROC 4: Use in batch and other process (synthesis) where opportunity for exposure arises
PROC 8b: Transfer of substance or preparation (charging/discharging) from/to vessels/large containers at dedicated facilities
PROC 9: Transfer of substance or preparation into small containers (dedicated filling line, including weighing)