Comparing E280 - Propionic acid vs E283 - Potassium propionate
Overview
Synonyms
Products
Found in 448 products
Found in 1 products
Search rank & volume
Awareness score
Search volume over time
Interest over time for 4 keywords in U.S. during the last 10 years.
Search history data is not available.
Popular questions
Where does propionic acid come from?
It occurs naturally, produced by Propionibacterium in fermented foods (like Swiss-type cheeses) and in the human gut, and is also made commercially by microbial fermentation or petrochemical synthesis.
Is propionic acid a strong acid?
No—it's a weak carboxylic acid (pKa about 4.9), similar in strength to acetic acid.
What is propionic acid used for?
As a food additive (E280), it acts as a preservative that inhibits mold and some bacteria, commonly used in bread, baked goods, and cheese; its salts (e.g., calcium or sodium propionate) are also used.
How is propionic acid made?
It’s produced industrially via petrochemical routes (e.g., hydroformylation/oxidation of ethylene or hydrocarboxylation) and by fermentation using Propionibacterium on sugars or glycerol.
How to reset a sansa e280?
This question is unrelated to the food additive E280 (propionic acid); for resetting a Sansa e280 media player, please consult the device manual or the manufacturer’s support site.
Consider an aqueous solution which is .20m in potassium propanoate?
It will be basic, since propionate is the conjugate base of propionic acid (pKa ≈ 4.87); a 0.20 m aqueous solution has a pH of about 9.1.
Potassium propionate and aluminum powder make what?
They do not form a special or energetic compound under normal conditions—mixing them typically yields just a physical mixture with no reaction.
What is the decimal value for the hexadecimal number e283?
57987.
What is the fraction of association (α) for the following potassium propionate solutions?
In water, potassium propionate is essentially fully dissociated, so the fraction of association is ~0 (the degree of dissociation is ~1 at typical concentrations).