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Sigma-Aldrich

Thorium nitrate hydrate

99% (T), ~4 mol/mol water

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About This Item

Linear Formula:
Th(NO3)4 · aq
CAS Number:
13823-29-5
Molecular Weight:
480.06 (anhydrous basis)
EC Number:
237-514-1
MDL number:
MFCD03094924
UNSPSC Code:
12352302
PubChem Substance ID:
57653327

Assay

99% (T)

form

solid

reaction suitability

reagent type: catalyst
core: thorium

extent of labeling

3.93 kBq/g specific activity

impurities

~4 mol/mol water

SMILES string

O.[Th+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O

InChI

1S/4NO3.H2O.Th/c4*2-1(3)4;;/h;;;;1H2;/q4*-1;;+4

InChI key

PRFFJYANKYMDRN-UHFFFAOYSA-N

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Other Notes

Regulations require a license for the sale of radioactive substances in Switzerland. Swiss customers are kindly requested when ordering, to include their license number, issued by the Swiss Public Health Authorities.
Sales restrictions may apply.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Ox. Sol. 2 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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B Rajeswari et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 79(3), 405-411 (2011-04-29)
Electron paramagnetic resonance (EPR) studies were conducted on gamma irradiated polycrystalline sample of thorium nitrate pentahydrate, Th(NO(3))(4)·5H(2)O, in the temperature range of 100-300 K. The most prominent species with triplet hyperfine structure in the EPR spectrum was identified as NO(2).
D V Gur'ev et al.
Radiatsionnaia biologiia, radioecologiia, 40(6), 678-683 (2001-01-13)
We studied histomorphology of the CBA line mice liver after 30 and 90 days of the low dose gamma-radiation influence combined with incorporated Th(NO3)4 in doses 0.03; 0.1; 0.3 grams per kilogram of the living mouse weight. Morphophysiological and morphometric
M Djurasević et al.
Journal of environmental radioactivity, 95(2-3), 75-85 (2007-03-27)
A method for determining the specific alpha activity of thick sources using a large area ZnS(Ag) scintillation detector is presented. In this method a quadratic relationship between the detector response and window thickness is assumed. This method provides a quick
Estela Reinoso-Maset et al.
Rapid communications in mass spectrometry : RCM, 26(23), 2755-2762 (2012-11-06)
Electrospray ionisation mass spectrometry (ESI-MS) is a useful tool for exploring the speciation of solution-phase metal complexes; however, the quantification of ternary systems is challenging due to the differences in the electrospray response of different species. Here, the Th-Mn-EDTA system
T I Evseeva et al.
Tsitologiia, 43(8), 803-808 (2001-10-17)
Effects of separate and combined action of 232Th and Cd on Allium cepa root tip cells were investigated. It has been shown that cytogenetic effects of 232Th results mainly from its ability to induce genome damages. Cadmium in the examined
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