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207578 Sigma-Aldrich

Thorium Standard for AAS

1000 μg/mL Th in 5% HNO3 (Exact Th concentration on label)



Related Categories AA Standard Solutions, AAS, Additional Standards, Analytical Standards, Analytical/Chromatography,
concentration   1000 μg/mL Th in 5% HNO3 (Exact Th concentration on label)
application(s)   AAS: suitable
density   1.03 g/mL at 25 °C
format   single component solution
Safety & Documentation

Safety Information

GHS05  GHS05
Signal word 
Hazard statements 
Precautionary statements 
UN 2031B 8 / PGII
WGK Germany 


Certificate of Analysis

Certificate of Origin

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products.Once you log onto our website, you will find the price and availability displayed on the product detail page.You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 orview local office numbers.
Is Product 207578, Thorium atomic solution, radioactive?
All forms of Thorium are naturally radioactive, but at a concentration of 1000 ppm (0.1% w/v), this product is not considered radioactive for shipping purposes. Also, at this concentration it is not regulated by the Nuclear Regulatory Commission (NRC).
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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