| Identifiers | |
|---|---|
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3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.039.982 |
| EC Number |
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PubChem CID | |
| UNII |
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CompTox Dashboard (EPA) |
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| Properties | |
| Tm2(SO4)3 | |
| Molar mass | 626.04 g·mol−1 |
| Density | 1.130 g/cm3 (25 °C) [1] |
| 160.32 g/L (25 °C) [1] | |
| Hazards [2] | |
| GHS labelling: | |
| | |
| Warning | |
| H315, H319, H335 | |
| P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Thulium(III) sulfate is an inorganic compound of thulium, with the molecular formula Tm2(SO4)3.
It has received little scientific attention as its solubility in water was only determined in 2023 [1] despite it being known since at least 1911. [3] [4]
Thulium(III) oxide has been reported to react with strong acids with hydrochloric acid being explicitly mentioned. [5] Sulfuric acid is also a strong acid that forms sulfate salts. [6]
Thulium sulfate can form an octahydrate. [7] [8]
It can also be used as a dopant for e.g. lithium borate glass that contains copper nanoparticles in order to limit photo-darkening [9] or in thermoluminescent dosimeters. [10]
It undergoes ion exchange with barium bromate to yield thulium(III) bromate and barium sulfate which precipitates from the aqueous solution. [3]