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| <!-- Images --> | <!-- Images -->| Name = Ammonium tellurate | ||
| | Name = Ammonium tellurate | |||
| | ImageFileL1 = | | ImageFileL1 = | ||
| | ImageFileR1 = | | ImageFileR1 = | ||
| | ImageAlt = <!-- Names --> | | ImageAlt = <!-- Names --> | ||
| | IUPACName = |
| IUPACName = Ammonium tellurate | ||
| | OtherNames = Diammonium tellurate | | OtherNames = Diammonium tellurate, ammonium tellurate(IV) | ||
| <!-- Sections --> | <!-- Sections -->| Section1 = {{Chembox Identifiers | ||
| | Section1 = {{Chembox Identifiers | |||
| | CASNo = 13453-06-0 | | CASNo = 13453-06-0 | ||
| | ChemSpiderID = | | ChemSpiderID = 55516 | ||
| | UNII = | | UNII = | ||
| | DTXSID = DTXSID20928656 | | DTXSID = DTXSID20928656 | ||
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| | MolarMass = | | MolarMass = | ||
| | Appearance = White powder | | Appearance = White powder | ||
| | Density = g/cm<sup>3</sup> | | Density = 3.024 g/cm<sup>3</sup> | ||
| | MeltingPt = | | MeltingPt = | ||
| | BoilingPt = | | BoilingPt = | ||
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| ==Synthesis== | ==Synthesis== | ||
| The compound can be obtained by oxidation of ] TeO2 with hydrogen peroxide in an ammonia medium. | The compound can be obtained by oxidation of ] {{chem2|TeO2}} with ] in an ammonia medium. | ||
| ==Physical properties== | ==Physical properties== | ||
| Ammonium tellurate forms white crystals, soluble in water.<ref>{{cite book |last1=Perry |first1=Dale L. |title=Handbook of Inorganic Compounds |date=19 April 2016 |publisher=] |isbn=978-1-4398-1462-8 |page=33 |url=https://books.google.com/books?id=SFD30BvPBhoC&dq=ammonium+tellurate&pg=PA528 |access-date=24 December 2024 |language=en}}</ref> | |||
| Ammonium tellurate forms white crystals of ], spatial group ''C mma'', cell parameters a = 0.757 nm, b = 1.147 nm, c = 0.398 nm, Z = 4. | |||
| ==Chemical properties== | |||
| ==Uses== | |||
| Whrn heated, the compound decomposes releasing toxic fumes of {{chem2|Te}}, NO<sub>x</sub>, and {{chem2|NH3}}.<ref>{{cite book |last1=Lewis Sr. |first1=Richard J. |title=Hazardous Chemicals Desk Reference |date=23 July 2008 |publisher=] |isbn=978-0-470-33445-4 |page=76 |url=https://books.google.com/books?id=q-6-fCfskYMC&dq=ammonium+tellurate&pg=PA75 |access-date=24 December 2024 |language=en}}</ref> | |||
| The compound is usually used as a catalyst for the production of ].<ref name="E"/> | |||
| == References == | == References == | ||
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| ] | ] | ||
| ] | ] | ||
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Latest revision as of 12:34, 28 December 2024
| Names | |
|---|---|
| IUPAC name Ammonium tellurate | |
| Other names Diammonium tellurate, ammonium tellurate(IV) | |
| Identifiers | |
| CAS Number | |
| 3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.033.279 
|
| EC Number |
|
| PubChem CID | |
| CompTox Dashboard (EPA) | |
InChI
| |
SMILES
| |
| Properties | |
| Chemical formula | H8N2O4Te |
| Molar mass | 227.67 g·mol |
| Appearance | White powder |
| Density | 3.024 g/cm |
| Solubility in water | soluble |
| Hazards | |
| GHS labelling: | |
| Pictograms | 
|
| Signal word | Warning |
| Precautionary statements | P264, P270, P301, P312, P330, P501 |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Ammonium tellurate is a chemical compound with the chemical formula (NH4)2TeO4.
Synthesis
The compound can be obtained by oxidation of tellurium dioxide TeO2 with hydrogen peroxide in an ammonia medium.
Physical properties
Ammonium tellurate forms white crystals, soluble in water.
Chemical properties
Whrn heated, the compound decomposes releasing toxic fumes of Te, NOx, and NH3.
References
- "Ammonium Tellurate". American Elements. Retrieved 24 December 2024.
- "Ammonium tellurate | CAS 13453-06-0 | SCBT - Santa Cruz Biotechnology". scbt.com. Retrieved 24 December 2024.
- Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds. CRC Press. p. 33. ISBN 978-1-4398-1462-8. Retrieved 24 December 2024.
- Lewis Sr., Richard J. (23 July 2008). Hazardous Chemicals Desk Reference. John Wiley & Sons. p. 76. ISBN 978-0-470-33445-4. Retrieved 24 December 2024.