Thorium trichloride

Names
IUPAC name

Trichlorothorium

Other names

Thorium(III) chloride

Identifiers

CAS Number

* 15123-26-9

3D model (JSmol)

* Interactive image

ChemSpider |

* 123372

PubChem CID

* 139894 (charge error)

CompTox Dashboard (EPA)

* DTXSID90164741

InChI

* InChI=1S/3ClH.Th/h3*1H;/q;;;+3/p-3

Key: LQPUBIDKGBFLMP-UHFFFAOYSA-K

SMILES

* Cl[Th](Cl)Cl

Properties

Chemical formula

| Cl3Th
Molar mass | 338.39 g·mol−1
Appearance  | crystals
Related compounds

Related compounds

| Americium trichloride, uranium trichloride

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Chemical compound

Thorium trichloride is a binary inorganic compound of thorium metal and chlorine with the chemical formula ThCl3.[1][2][3]

## Synthesis

[edit]

The compound can be prepared by reducing thorium tetrachloride at 800°C:[4]

3Th + ThCl4 → 4ThCl3

Also a reaction of both elements:[5]

2Th + 3Cl2 → 2ThCl3

Other reactions are also known.[6]

## Physical properties

[edit]

The compound forms crystals of the uranium trichloride crystal system.

## Chemical properties

[edit]

Above 630 °C thorium trichloride dissociates into the dichloride and tetrachloride.

## Uses

[edit]

Thorium trichloride is supposed[clarification needed] to be used in a dual fluid reactor as reactor fuel.[7]

## References

[edit]

1. ^ Lau, K. H.; Hildenbrand, D. L. (1990). "High-temperature equilibrium studies of the gaseous thorium chlorides". J. Chem. Phys. 92 (10): 6124. Bibcode:1990JChPh..92.6124L. doi:10.1063/1.458335. Retrieved 5 April 2024.
2. ^ Buschbeck, Karl-Christian (1985). Gmelin Handbook of Inorganic Chemistry. Springer-Verlag. p. 34\. ISBN 978-3-540-93515-5. Retrieved 5 April 2024.
3. ^ Bagnall, Kenneth W.; Kanellakopulos, Basil (21 December 1984). Coordination Compounds. Springer Berlin Heidelberg. p. 22\. ISBN 978-3-540-93515-5. Retrieved 5 April 2024.
4. ^ Annual Summary Research Report of Chemistry, Engineering, Metallurgy, Physics and Reactor Divisions. Ames Laboratoty. 1965. p. 1-9. Retrieved 5 April 2024.
5. ^ Bulletin. U.S. Government Printing Office. 1962. p. 116. Retrieved 5 April 2024.
6. ^ Reactor Fuel Processing. U.S. Argonne National Laboratory. 1961. p. 42. Retrieved 5 April 2024.
7. ^ "The Dual Fluid Reactor" (PDF). Institute for Solid-State Nuclear Physics gGmbH. Retrieved 5 April 2024.

* v
* t
* e

Thorium compounds

Th(II)|

* ThC2
* ThCl2
* ThI2
* ThO

Th(III)|

* ThCl3
* ThF3
* ThI3

Th(IV)|

* ThO2
* Th(OH)4
* ThC
* ThCl4
* ThF4
* ThI4
* ThSiO4
* ThOF

* Th(C2O4)2
* ThS2
* ThSe2
* Th(SeO4)2
* Th(NO3)4
* Th(C8H8)2
* Th(HCOO)4
* Th(CH3COO)4
* ThP7

* v
* t
* e

Salts and covalent derivatives of the chloride ion

| HCl |  |  |  | He

|
|
|
|

LiCl | BeCl2 | B4Cl4
B12Cl12
BCl3
B2Cl4
+BO3 | C2Cl2
C2Cl4
C2Cl6
CCl4

+CO3 | NCl3
ClN3

+NO3 | ClxOy
Cl2O
Cl2O2
ClO
ClO2
Cl2O4
Cl2O6
Cl2O7
ClO4
+O | ClF
ClF3
ClF5 | Ne
NaCl | MgCl2 | AlCl
AlCl3 | Si5Cl12
Si2Cl6
SiCl4 | P2Cl4
PCl3
PCl5
+P | S2Cl2
SCl2
SCl4
+SO4 | Cl2 | Ar
KCl | CaCl
CaCl2 |  | ScCl3 | TiCl2
TiCl3
TiCl4 | VCl2
VCl3
VCl4
VCl5 | CrCl2
CrCl3
CrCl4 | MnCl2
MnCl3 | FeCl2
FeCl3 | CoCl2
CoCl3 | NiCl2 | CuCl
CuCl2 | ZnCl2 | GaCl
GaCl3 | GeCl2
GeCl4 | AsCl3
AsCl5
+As | Se2Cl2
SeCl2
SeCl4 | BrCl | Kr
RbCl | SrCl2 |  | YCl3 | ZrCl2
ZrCl3
ZrCl4 | NbCl3
NbCl4
NbCl5 | MoCl2
MoCl3
MoCl4
MoCl5
MoCl6 | TcCl3
TcCl4 | RuCl2
RuCl3
RuCl4 | RhCl3 | PdCl2 | AgCl | CdCl2 | InCl
InCl2
InCl3 | SnCl2
SnCl4 | SbCl3
SbCl5 | Te3Cl2
TeCl2
TeCl4 | ICl
ICl3 | XeCl
XeCl2
XeCl4
CsCl | BaCl2 | *  | LuCl3 | HfCl4 | TaCl3
TaCl4
TaCl5 | WCl2
WCl3
WCl4
WCl5
WCl6 | ReCl3
ReCl4
ReCl5
ReCl6 | OsCl2
OsCl3
OsCl4
OsCl5 | IrCl2
IrCl3
IrCl4 | PtCl2
PtCl4 | AuCl
(Au[AuCl4])2
AuCl3 | Hg2Cl2
HgCl2 | TlCl
TlCl3 | PbCl2
PbCl4 | BiCl3 | PoCl2
PoCl4 | AtCl | Rn
FrCl | RaCl2 | **  | LrCl3 | RfCl4 | DbCl5 | SgO2Cl2 | BhO3Cl | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og

*  | LaCl3 | CeCl3 | PrCl3 | NdCl2
NdCl3 | PmCl3 | SmCl2
SmCl3 | EuCl2
EuCl3 | GdCl3 | TbCl3 | DyCl2
DyCl3 | HoCl3 | ErCl3 | TmCl2
TmCl3 | YbCl2
YbCl3
**  | AcCl3 | ThCl3
ThCl4 | PaCl4
PaCl5 | UCl3
UCl4
UCl5
UCl6 | NpCl3
NpCl4 | PuCl3 | AmCl2
AmCl3 | CmCl3 | BkCl3 | CfCl3
CfCl2 | EsCl2
EsCl3 | FmCl2 | MdCl2 | NoCl2

* v
* t
* e

Halides of actinides

|  | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm

|
|
|
|
|
|
|
|
|
|
|
|

+6  |  |  |  | UF6
UCl6 | NpF6 | PuF6 | AmF6 | CmF6 |  |  | EsF6 |
+5  |  |  | PaF5
PaCl5
PaBr5
PaI5 | UF5
UCl5
UBr5 | NpF5 | PuF5 |  |  |  |  |  |
+4  |  | ThF4
ThCl4
ThBr4
ThI4 | PaF4
PaCl4
PaBr4
PaI4 | UF4
UCl4
UBr4
UI4 | NpF4
NpCl4
NpBr4 | PuF4 | AmF4 | CmF4 | BkF4 | CfF4 | EsF4 |
+3  | AcF3
AcCl3
AcBr3
AcI3 | ThF3
ThCl3
ThI3 |  | UF3
UCl3
UBr3
UI3 | NpF3
NpCl3
NpBr3
NpI3 | PuF3
PuCl3
PuBr3
PuI3 | AmF3
AmCl3
AmBr3
AmI3 | CmF3
CmCl3
CmBr3
CmI3 | BkF3
BkCl3
BkBr3
BkI3 | CfF3
CfCl3
CfBr3
CfI3 | EsF3
EsCl3
EsBr3
EsI3 | FmCl3
+2  |  | ThI2
ThCl2 |  |  |  |  | AmF2
AmCl2
AmBr2
AmI2 |  |  | CfI2
CfCl2 | EsCl2
EsBr2
EsI2 | FmCl2
*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template