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It is also used as an anticoagulant for laboratory testing, in that blood samples are collected into sodium citrate-containing tubes for tests such as the PT (INR), APTT, and fibrinogen levels. Sodium citrate is used in medical contexts as an alkalinizing agent in place of sodium bicarbonate, [2] to neutralize excess acid in the blood and urine ...
Sodium citrate is chiefly used as a food additive, usually for flavor or as a preservative. Its E number is E331. Sodium citrate is employed as a flavoring agent in certain varieties of club soda. It is common as an ingredient in bratwurst, and is also used in commercial ready-to-drink beverages and drink mixes, contributing a
Sodium phosphate removes calcium from the Ca-paracaseinate cheese complex due to ion exchange interactions, where positive calcium ions bind to the negative phosphate groups. Phosphate and citrate anions can then bind to the protein structure, converting calcium-paracaseinate converts to water-soluble sodium-paracaseinate. [9]
Benedict's reagent (often called Benedict's qualitative solution or Benedict's solution) is a chemical reagent and complex mixture of sodium carbonate, sodium citrate, and copper(II) sulfate pentahydrate. [1] It is often used in place of Fehling's solution to detect the presence of reducing sugars and other reducing substances. [2]
A fruit salt or fruit salts is an effervescent compound made up of organic acids such as citric acid or tartaric acid and salts such as sodium bicarbonate, sodium carbonate, or sodium bitartrate in combination with added flavoring and sugar. Historically, fruit salts were sold for a wide range of ailments, and today they are used primarily as ...
Disodium citrate, also known as disodium hydrogen citrate, (Neo-Alkacitron) and sesquihydrate, is an acid salt of citric acid with the chemical formula Na 2 C 6 H 6 O 7. [2] It is used as an antioxidant in food and to improve the effects of other antioxidants. It is also used as an acidity regulator and sequestrant.
Citric acid is used as an odorless alternative to white vinegar for fabric dyeing with acid dyes. Sodium citrate is a component of Benedict's reagent, used for both qualitative and quantitative identification of reducing sugars. [39] Citric acid can be used as an alternative to nitric acid in passivation of stainless steel. [40]
For example, a blue-top tube is a 5 ml test tube containing sodium citrate as an anticoagulant, used to collect blood for coagulation and glucose-6-phosphate dehydrogenase testing. [5] Small vials used in medicine may have a snap-top (also called a hinge cap) molded as part of the vial.