Lactic Acid CAS 50-21-5 (jerryzhang001@chembj.com) - 50-21-5
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Lactic Acid CAS 50-21-5
Product Name: Lactic acid
Synonyms: FEMA 2611;DL-ALPHA-HYDROXYPROPIONIC ACID;(+/-)-LACTIC ACID;LACTIC ACID;LACTIC ACID, RACEMIC;2-HYDROXYPROPIONIC ACID, RACEMIC;(+/-)-2-HYDROXYPROPIONIC ACID;2-HYDROXYPROPIONIC ACID;
CAS: 50-21-5;
MF: C3H6O3;
MW: 90.08;
EINECS: 200-018-0;
Product Categories: FOOD ADDITIVES;Plant Growth Regulator;Food & Feed ADDITIVES;ACS GradeChiral Building Blocks;Carboxylic Acids;Essential Chemicals;Organic Building Blocks;Routine Reagents;Food & Flavor Additives;Building Blocks;C1 to C5;Carbonyl Compounds;Carboxylic Acids;Chemical Synthesis;Organic Building Blocks;Food additive and acidulant;
Melting point: 18°C;
Boiling point: 122 °C15 mm Hg(lit.);
density: 1.209 g/mL at 25 °C;
Fp: >230 °F;
storage temp.: 2-8°C;
Chemical Properties: colourless to yellow liquid;
Description:
1. Lactic acid is a carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called & quot;neutralizations& quot;, are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0.
2. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well
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