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Amorphous indium oxide is insoluble in water but soluble in acids, whereas crystalline indium oxide is insoluble in both water and acids. The crystalline form exists in two phases, the cubic (bixbyite type) [1] and rhombohedral (corundum type). Both phases have a band gap of about 3 eV. [3] [4] The parameters of the cubic phase are listed in ...
Many metals (such as zinc, tin, lead, aluminium, and beryllium) form amphoteric oxides or hydroxides. Aluminium oxide (Al 2 O 3) is an example of an amphoteric oxide. Amphoterism depends on the oxidation states of the oxide. Amphoteric oxides include lead(II) oxide and zinc oxide, among many others. [5]
Boron oxide (B 2 O 3) is slightly acidic, aluminium and gallium oxide (Al 2 O 3 and Ga 2 O 3 respectively) are amphoteric, indium(III) oxide (In 2 O 3) is nearly amphoteric, and thallium(III) oxide (Tl 2 O 3) is a Lewis base because it dissolves in acids to form salts.
Indium tin oxide and indium phosphide harm the pulmonary and immune systems, predominantly through ionic indium, [91] though hydrated indium oxide is more than forty times as toxic when injected, measured by the quantity of indium introduced. [21] People can be exposed to indium in the workplace by inhalation, ingestion, skin contact, and eye ...
Indium tin oxide (ITO) is a ternary composition of indium, tin and oxygen in varying proportions. Depending on the oxygen content, it can be described as either a ceramic or an alloy . Indium tin oxide is typically encountered as an oxygen-saturated composition with a formulation of 74% In, 8% Sn, and 18% O by weight.
Aluminium bonds covalently in most compounds. [427] The oxide Al 2 O 3 is amphoteric [428] and a conditional glass-former. [275] Aluminium can form anionic aluminates, [424] such behaviour being considered nonmetallic in character. [69] Classifying aluminium as a metalloid has been disputed [429] given its many metallic properties. It is ...
It bonds covalently in most of its compounds, [104] has an amphoteric oxide; [105] and can form anionic gallates. [58] Gallium forms Zintl phases such as Li 2 Ga 7, K 3 Ga 13 and YbGa 2. [106] It is slowly oxidized in moist air at ambient conditions; a protective film of oxide prevents further corrosion. [107]
Tin(IV) oxide, also known as stannic oxide, is the inorganic compound with the formula SnO 2. The mineral form of SnO 2 is called cassiterite, and this is the main ore of tin. [9] With many other names, this oxide of tin is an important material in tin chemistry. It is a colourless, diamagnetic, amphoteric solid.