thallium(I) nitrate
{{Chembox
| ImageFile = File:Thallium(I)_nitrate.svg
| ImageSize =
| IUPACName = thallium(I) nitrate
| OtherNames = thallous nitrate
|Section1={{Chembox Identifiers
| CASNo_Ref =
| CASNo = 10102-45-1
| EINECS = 233-273-1
| UNII_Ref =
| UNII = LJQ38DSR12
| PubChem = 24937
| ChemSpiderID_Ref =
| ChemSpiderID = 23311
| SMILES = [Tl+].[O-][N+](=O)[O-]
| StdInChI=1S/NO3.Tl/c2-1(3)4;/q-1;+1
| StdInChIKey = FYWSTUCDSVYLPV-UHFFFAOYSA-N
}}
|Section2={{Chembox Properties
| Formula = TlNO3
| MolarMass = 266.39 g/mol
| Appearance = colorless solid
| Density = 5.55 g/cm3
| MeltingPtC = 206
| MeltingPt_notes =
| BoilingPt = {{convert|430|C|F K}}
| Solubility = 95 g/L (20 °C)
}}
|Section7={{Chembox Hazards
| ExternalSDS = [https://www.fishersci.com/store/msds?partNumber=AC194240100&productDescription=THALLIUM%28I%29+NITRATE%2C+99.+10GR&vendorId=VN00032119&countryCode=US&language=en Fischer Scientific]
| GHSPictograms = {{GHS03}}{{GHS06}}{{GHS08}}{{GHS09}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|272|300+330|373|411}}
| PPhrases = {{P-phrases|210|260|273|301+310+330|304+340+310|403+233}}
| NFPA-H = 4
| NFPA-F = 1
| NFPA-R = 2
| NFPA-S = OX
| LD50 = 15 mg/kg (mouse, oral)
}}
}}
Thallium(I) nitrate, also known as thallous nitrate, is a thallium compound with the formula TlNO3. It is a colorless and highly toxic salt.
Preparation
Thallium(I) nitrate can be produced by reacting thallium(I) iodide with nitric acid.{{citation|surname1=R. Pribil, V. Veselý, K. Kratochvíl|periodical=Talanta|title=Contributions to the basic problems of complexometry--IV : Determination of thallium|volume=8|issue=1|at=pp. 52–54|date=1961|language=German|doi=10.1016/0039-9140(61)80037-4
}}
However, the production is simpler starting from the metal, its hydroxide or the carbonate: Heinrich Remy: Lehrbuch der Anorganischen Chemie Band I + II, Leipzig 1973.
:{{chem2 | TlOH + HNO3 -> TlNO3 + H2O }}
:{{chem2 | Tl2CO3 + 2 HNO3 -> 2 TlNO3 + CO2 + H2O }}
Toxicity
Thallium(I) nitrate is extremely toxic, like many other thallium compounds. It is highly toxic by ingestion but can also be absorbed through skin due to its solubility in water.National Center for Biotechnology Information (2023). PubChem Compound Summary for CID 24937, Thallium nitrate. Retrieved March 20, 2023 from https://pubchem.ncbi.nlm.nih.gov/compound/Thallium-nitrate.