Thallium(I) nitrate

Thallium(I) nitrate, also known as thallous nitrate, is a thallium compound with the formula TlNO₃. It is a colorless and highly toxic salt.

Thallium(I) nitrate

Names
IUPAC name thallium(I) nitrate
Other names thallous nitrate
Identifiers
CAS Number	10102-45-1
3D model (JSmol)	Interactive image
ChemSpider	23311
ECHA InfoCard	100.030.235
EC Number	233-273-1
PubChem CID	24937
UNII	LJQ38DSR12
CompTox Dashboard (EPA)	DTXSID1024334
InChI InChI=1S/NO3.Tl/c2-1(3)4;/q-1;+1 Key: FYWSTUCDSVYLPV-UHFFFAOYSA-N
SMILES [Tl+].[O-][N+](=O)[O-]
Properties
Chemical formula	TlNO3
Molar mass	266.39 g/mol
Appearance	colorless solid
Density	5.55 g/cm3
Melting point	206 °C (403 °F; 479 K)
Boiling point	430 °C (806 °F; 703 K)
Solubility in water	95 g/L (20 °C)
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H272, H300+H330, H373, H411
Precautionary statements	P210, P260, P273, P301+P310+P330, P304+P340+P310, P403+P233
NFPA 704 (fire diamond)	4 1 2 OX
Lethal dose or concentration (LD, LC):
LD50 (median dose)	15 mg/kg (mouse, oral)
Safety data sheet (SDS)	Fischer Scientific
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Preparation

Thallium(I) nitrate can be produced by reacting thallium(I) iodide with nitric acid.^[1]

However, the production is simpler starting from the metal, its hydroxide or the carbonate: ^[2]

TlOH + HNO₃ → TlNO₃ + H₂O

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.^[3]

See also

• Thallium(III) nitrate