What is the pKa of triethylamine?

Synthesis and properties The pKa of protonated triethylamine is 10.75, and it can be used to prepare buffer solutions at that pH.

What is the pKa of DMSO?

Acidity. The methyl groups of DMSO are only weakly acidic, with a pKa = 35.

Is triethylamine a strong or weak base?

The highest pKaH value here is 10.8 for triethylamine. That makes triethylamine the strongest base out of all of those listed.

What is triethylamine used for?

Triethylamine is mainly used in the production of quaternary ammonium compounds for textile auxiliaries and quaternary ammonium salts of dyes. It is also a catalyst and acid neutralizer for condensation reactions and is useful as an intermediate for manufacturing medicines, pesticides and other chemicals.

Is triethylamine soluble in DMSO?

Triethylamine hydrochloride is a by-product. My product (polyamide) is soluble in most organic solvents (water, ethanol, methanol, dichlorometane) and insoluble in acetone, DMSO, hexane, THF, dioxane, ethyl acetate… Can you suggest any method to separate my product?

What is the pH of DMSO?

Sulfur Compounds Dimethyl sulfoxide

Product Line Toray Fine Chemicals Co., Ltd.
Typical Properties Appearance: Colorless liquid Specific Gravity(At25°C): Not less than 1.093 Purity(GC area %): Not less than 99.9% Water Content(KF): Not more than 0.1% Reducing Materials (As Formaldehyde): Not more than 0.01% pH:6~8

How do you find the pKa value?

Calculate the pKa with the formula pKa = -log(Ka). For example, pKa = -log(1.82 x 10^-4) = 3.74.

What is the pKa value?

The pKa value is the negative base -10 logarithm of the acid dissociation constant (Ka) of a solution. The quantitative behavior of acids and bases in solution can be understood only if their pKa values are known.

How do you remove triethylamine from a compound?

If it deprotonated, you can use vaccuum (bp is about 90 degrees) or rinse with a non-polar solvent like ether. If it is protonated, you can wash with water, methanol, ethanol, etc.

How do you remove triethylamine from a sample?

– Distillation may work if the product or mixture of products are stable in the distillation conditions. If so, vacuum distillation may work fine. The use of co-solvents cal also help and depending on the desired final level of triethylamine you can apply stripping with nitrogen of vapour.