Ungrounded Dry Alumina Trihydrate is available as coarse particles having approximately 150 micron size. Alumina Chemicals & Castables offers Ungrounded Dry Alumina Trihydrate. Alumina Chemicals & Castables also supplies a wide range of chemicals like alumina Trihydrate, Calcined Alumina, Sodium Aluminate, Activated Alumina and calcium Aluminates Cement. The Ungrounded Dry Alumina Trihydrate comes in CHW and CHD grades that contains less moisture and is a free flowing material.