Description
citric acid, a colourless crystalline organic compound belonging to the family of carboxylic acids, present in practically all plants and in many animal tissues and fluids. It is one of a series of compounds involved in the physiological oxidation of fats, proteins, and carbohydrates to carbon dioxide and water (see tricarboxylic acid cycle).. It is used in confections and soft drinks (as a flavouring agent), in metal-cleaning compositions, and in improving the stability of foods and other organic substances (by suppressing the deleterious action of dissolved metal salts).
Citric acid is an organic compound with the chemical formula HOC(CO2H)(CH2CO2H)2. It is a colorless weak organic acid.
It occurs naturally in citrus fruits. In biochemistry, it is an intermediate in the citric acid cycle, which occurs in the metabolism of all aerobic organisms.
More than two million tons of citric acid are manufactured every year. It is used widely as an acidifier, as a flavoring, and a chelating agent.
CAS No.: 77-92-9
Specification
| Items | Stadards |
| Appearance | Colorless crystals or white crystalline powders |
| Assay | 99.5%-100.5% |
| Clarity & Clolor of Solution | 20% water solution clarifying |
| Moisture | 7.5-8.8 |
| Sulphated Ash | ≤ 0.05% |
| Light Transmittance | ≥97.0% |
| Sulpahte | ≤150ppm |
| Chloride | ≤50ppm |
| Calcium | ≤75ppm |
| Heavy Metal | ≤5ppm |
| Iron | ≤5ppm |
| Oxalate | ≤100ppm |
| Readily Carbonizable | Not darker than standard |
| Aluminium | ≤0.2ppm |
| Arsenic | ≤1ppm |
| Mercury | ≤1ppm |
| Lead | ≤0.5ppm |
| Endotoxin of Germ | ≤0.5IU/Mg |
| Tridodecylamine | ≤0.1ppm |
Uses
Widely used in food industry as acidulant,flavoring agent, preservative and antistaling agent in food and beverage industry, it is also used as antioxidant, plasticizer anddetergent in chemical, cosmetics and cleaning industries.
Citric acid is a concentrated powder that is prized for its sour flavor, preservative quality, and ability to act as a pH buffer. For these reasons, citric acid is found on the ingredients list of many foods in your kitchen pantry, including preserves, candy, and crunchy snacks. It is also known as “sour salt” due to its flavor and similar appearance and texture to salt.
Package
25kg Woven bag with liner.
Storage
Store citric acid in its original container in a cool, dry place. From the date of manufacturing, it has a shelf life of three years once opened and will stay stable for at least five years unopene