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Nomination Summary for Indium and gallium (N20203)

Nominated Substances: Gallium, Gallium oxide, Indium, Indium oxide

Nomination Date: 11/12/2001

Nominator: Private Individual

Rationale: The NTP long-term studies of indium phosphide and gallium arsenide demonstrated a high level of pulmonary and systemic toxicity for these two compounds. However, is this toxicity due solely to indium and gallium or is this toxicity unique to these two compounds. If the toxicity is due solely to the individual chemicals, then all uses of these metals should fall under scrutiny. These two metals are entering mass-produced consumer products in forms other than gallium arsenide and indium phosphide.

NTP Principles: not specified


Agents and Status

The following information relates to the specific agent and may include history from earlier or later nominations for this same agent.


CASRN: 12024-21-4

Agent Name: Gallium oxide