E510 Acidity regulator

E510 is used as an expectorant in cough medicine. Its expectorant action is caused by irritative action on the bronchial mucosa, which causes the production of excess respiratory tract fluid, which presumably is easier to cough up. E501 salts are an irritant to the gastric mucosa and may induce nausea and vomiting.

E510 is used as a systemic acidifying agent in the treatment of severe metabolic alkalosis, in oral acid loading test to diagnose distal renal tubular acidosis, to maintain the urine at an acid pH in the treatment of some urinary-tract disorders

E510, under the name sal ammoniac or salmiak is used as a food additive under the E number E510, working as a yeast nutrient in breadmaking and as an acidifier. It is a feed supplement for cattle and an ingredient in nutritive media for yeasts and many microorganisms.

E510 is used to spice up dark sweets called salty licorice (popular in Scandinavia), in baking to give cookies a very crisp texture, and in the liquor Salmiakki Koskenkorva for flavoring. In Iran, Tajikistan, India, Pakistan, and Arab countries it is called "Noshader" and is used to improve the crispness of snacks such as E510..