T58300 Sigma-Aldrich


reagent grade, 98%

Synonym: 2,2′,2′′-Nitrilotriethanol, Tris(2-hydroxyethyl)amine



Related Categories Amino Alcohols, Building Blocks, Chemical Synthesis, Organic Building Blocks, Oxygen Compounds More...
grade   reagent grade
vapor density   5.14 (vs air)
vapor pressure   0.01 mmHg ( 20 °C)
assay   98%
form   viscous liquid
autoignition temp.   600 °F
expl. lim.   8.5 %
refractive index   n20/D 1.485(lit.)
useful pH range   7.3 - 8.3
pKa (25 °C)   7.8
bp   190-193 °C/5 mmHg(lit.)
mp   17.9-21 °C(lit.)
solubility   : soluble 149 g/L at 20 °C (completely)
density   1.124 g/mL at 25 °C(lit.)


Frequently Asked Questions

Frequently Asked Questions are available for this Product.


1, 4 kg in poly bottle

20 kg in steel drum

25 g in poly bottle

Price and Availability

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
354.2 °F
Flash Point(C) 
179 °C

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. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option:
What is the boiling point of Product T58300, Triethanolamine?
The boiling point is not determined by Sigma-Aldrich, but is reported to be 190-193°C at a reduced pressure of 5mm Hg.
Product T58300, Triethanolamine, was received as a solid and it usually arrives as a liquid. Is the product still acceptable?
Yes, the product is still acceptable. Triethanolamine has a melting point of 17.9-21°C, which is near room temperature. The item ships under ambient conditions. As a result, it may arrive as a solid when exposed to cold temperatures (especially during the winter months). Gentle heating in a warm water bath will easily convert the material back into its expected viscous liquid appearance.
What kind of gloves would be recommended when working with Product T58300, Triethanolamine?
When working with the material, we would recommend neoprene, nitrile or butyl gloves. For example, the Best® butyl, ChemMaster™ or N-DEX®  gloves listed at the following link could be used with triethanolamine.
How can I dilute Product T58300, Triethanolamine?
According to the Merck Index (which we also offer as product Z705322), triethanolamine is expected to be miscible with water, methanol or acetone.
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 or view local office numbers. 
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, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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