Thallium iodide (TlI)
Basic information
- CAS
7790-30-9- Standard SMILES
[I][Tl]- InChIKey
CMJCEVKJYRZMIA-UHFFFAOYSA-M- Molecular formula
- ITl
- Average molar mass
- 331.288 g/mol
- Monoisotopic mass
- 331.8789
Names & identifiers
- Preferred name
- Thallium iodide (TlI)
- IUPAC
- iodothallium
- English name
- THALLIUM(I) IODIDE
- Molecular formula
- ITl
- Molecular weight
- 331.29
Names & synonyms
Thallium iodideThallous iodide7790-30-9Thallium iodide (TlI)Thallium(1+) iodideThallium monoiodideThallium iodide (TlI), dimer98W17EMO3CDTXSID10894795NSC-15201RefChem:1099771DTXCID801324376
Show more names
TlIThalium IodidethalllumiodideTHALLIUM IODIDIEThalliuM PURATREMThallium(Ⅰ)iodideTHALLIUM(I) IODIDEthallium(1+)iodide
232-199-7Thallium iodide, TlIThallium iodide (Tl2I2)Thallium iodide (VAN)EINECS 232-199-7NSC 15201UNII-98W17EMO3CThallium iodide
Database identifiers
- CAS
7790-30-9- PubChem CID
- 62679
- DTXSID
DTXSID10894795- EC Number
- 232-199-7
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 2
- Formal charge
- 0
- Complexity
- 2
Experimental & physicochemical properties
Chemical ClassesMetals -> Metals, Inorganic Compounds
SpringerMaterials Propertiesnuclear quadrupole moment
Physical DescriptionYellow solid; Nearly insoluble in water; [Merck Index] Yellow powder; [Aldrich MSDS] Insoluble in water; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- 440 °C · 440 °C(lit.)
- Boiling point
- 823 °C · 823°C
- Density
- 7.29 g/mL · 7.29 g/mL at 25 °C(lit.)
- Flash point
- 824 °C · 824°C
- storage temp.
- 10 · 10-30°C
- solubility
- insoluble in ethanol
- form
- Powder
- Specific Gravity
- 7.09 · 7.09
- color
- Yellow
- Water Solubility
- Practically insoluble in water
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H300 (100%): Fatal if swallowed [Danger Acute toxicity, oral]
P260, P264, P270, P271, P273, P284, P301+P316, P304+P340, P316, P319, P320, P321, P330, P391, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 84 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Not Classified
Hazard information
Regulatory InformationThallium (I) iodide: HSNO Approval: HSR006162 Approved with controls
Hazards Summary
Poisonous; [Merck Index] Caused muscle weakness and lowered blood pressure in an oral toxic-dose study of men; [RTECS] May be decomposed by light; May cause irritation and blindness; May be fatal by inhalation and ingestion; Danger of cumulative effects; Targets kidneys, cardiovascular system, skin, liver, male reproductive system, nerves, and eyes; [Aldrich MSDS] See Thallium and the linked occupational disease. See Iodine for the TLV of Iodides.
Hazard Classes and CategoriesAcute Tox. 2 (100%)
Safety & protection
Threshold Limit Values (TLV)0.01 [ppm], inhalable fraction and vapor (iodides)
Toxicology
Adverse EffectsNeurotoxin - Sensorimotor
Chemistry & industry
Uses & manufacturing
UsesUsed as infrared radiation transmitter (crystals mixed with thallium bromide); [Hawley]
General Manufacturing InformationThallium iodide (TlI): ACTIVE
Applications
DescriptionThallium (I) iodide is a yellow solid, nearly insoluble in water. It is used as infrared radiation transmitter (crystals mixed with thallium bromide).
UsesMixed crystals with thallium bromide for infrared radiation transmitters.
UsesThallium(I) iodide is used in mercury lamp to enhance its performance. It is mainly used for underwater lighting, since the blue green light produced has least absorption in water. Scintillator made by using iodide salt of thallium, sodium and cesium is utilized for radiation scintillation detectors.
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Compound notes
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