Calcium thiocyanate

{{short description|Water-soluble salt}}

{{Chembox

| ImageFile =

| ImageSize =

| ImageAlt =

| IUPACName =

| OtherNames =

|Section1={{Chembox Identifiers

| CASNo = 2092-16-2

| ChemSpiderID = 140363

| EC_number = 218-244-3

| PubChem = 159641

| UNII = P03NDO467X

| StdInChI=1S/2CHNS.Ca/c2*2-1-3;/h2*3H;/q;;+2/p-2

| StdInChIKey = RLDQYSHDFVSAPL-UHFFFAOYSA-L

| SMILES = C(#N)[S-].C(#N)[S-].[Ca+2]

}}

|Section2={{Chembox Properties

| Ca = 1|S=2|N=2|C=2

| MolarMass =

| Appearance = white solid

| Density =

| MeltingPt =

| MeltingPt_notes =

| BoilingPt =

| BoilingPt_notes =

| Solubility = }}

|Section3={{Chembox Hazards

| MainHazards =

| FlashPt =

| AutoignitionPt = }}

}}

Calcium thiocyanate refers to the salt {{chem2|Cs(SCN)2}}. It is a colorless solid. According to X-ray crystallography, it is a coordination polymer. The Ca²⁺ ions are each bonded to eight thiocyanate anions, with four Ca-S and four Ca-N bonds. The motif is reminiscent of the fluorite structure.{{cite journal |doi=10.1021/acs.inorgchem.4c00920 |title=Inorganic Metal Thiocyanates |date=2024 |last1=Cliffe |first1=Matthew J. |journal=Inorganic Chemistry |volume=63 |issue=29 |pages=13137–13156 |pmid=38980309 |pmc=11271006 }}