Indium(III) sulfate
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Indium(III) sulfate (In2(SO4)3) is a sulfate salt of the metal indium. It is a sesquisulfate, meaning that the sulfate group occurs 11/2 times as much as the metal. It may be formed by the reaction of indium, its oxide, or its carbonate with sulfuric acid. An excess of strong acid is required, otherwise insoluble basic salts are formed.[8] As a solid indium sulfate can be anhydrous, or take the form of a pentahydrate with five water molecules[9] or a nonahydrate with nine molecules of water. Indium sulfate is used in the production of indium or indium containing substances. Indium sulfate also can be found in basic salts, acidic salts or double salts including indium alum.
Names | |
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Other names
Indium sulfate | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.033.340 |
EC Number |
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PubChem CID |
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RTECS number |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
In2(SO4)3 | |
Molar mass | 517.81 g/mol |
Appearance | white-gray odorless powder, hygroscopic, monoclinic crystals |
Density | 3.44 g/cm3, solid |
Melting point | decomposes at 600 °C[1] |
soluble, (539.2 g/L at 20 °C)[2] | |
Structure | |
monoclinic (room temperature) | |
P121 | |
α = 90°, β = 124.72°, γ = 90° | |
Structure | |
rhombohedral | |
R-3 | |
α = 90°, β = 90°, γ = 120° | |
6 formula per cell | |
Thermochemistry | |
Heat capacity (C) |
0.129[5] |
Hazards | |
GHS labelling: | |
Warning | |
H315, H319, H335 | |
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |
NFPA 704 (fire diamond) | |
Threshold limit value (TLV) |
0.1[7] (TWA), 0.3[7] (STEL) |
NIOSH (US health exposure limits): | |
PEL (Permissible) |
0.1[7] |
Safety data sheet (SDS) | tttmetalpowder |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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