Citric Acid
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Product Description
Citric Acid
Chemical Name:Citric Acid;CAS 77-92-9
EINECS No.:
Chemical Formula: C6H8O7
Molecular Weight: 192.12
Melting point: 153-159°C
Boiling point: 248.08℃ at 760mmHg
Flash point: 100°C
Density at 20°C: 1.67 g/cm3
Molecular Structure:
Description
Citric acid(77-92-9) is a white, crystalline, weak organic acid present in most plants and many animals as an intermediate in cellular respiration. Citric acid contains three carboxyl groups making it a carboxylic, more specifically a tricarboxylic, acid.the name citrus originates from the Greek kedromelon meaning apple of melon for the fruit citron. Greek works mention kitron, kitrion, or kitreos for citron fruit, which is an oblong fruit several inches long from the scrublike tree Citrus medica. Lemons and limes have high citric acid content, which may account for up to 8% of the fruit's dry weight.
Citric acid is a weak acid and loses hydrogen ions from its three carboxyl groups (COOH) in solution.the loss of a hydrogen ion from each group in the molecule results in the citrate ion,C3H5O(COO)33. A citric acid molecule also forms intermediate ions when one or two hydrogen atoms in the carboxyl groups ionize.the citrate ion combines with metals to form salts, the most common of which is calcium citrate. Citric acid forms esters to produce various citrates, for example trimethyl citrate and triethyl citrate.
Citric Acid Standard
Appearance: White crystalline powder
Content %≥: 99.0
Density at 20°C: 1.67 g/cm3
Vapor pressure (20℃): 0.1 hPa
Refractive index n20/D: 1.493-1.509
Application
1.Citric acid, classified as a weak organic acid, is a commodity chemical due to its massive annual production exceeding one million tonnes. This production primarily occurs through mycological fermentation on an industrial scale, utilizing crude sugar solutions like molasses and strains of Aspergillus niger. Its distribution spans a wide range, found in plants, animal tissues, and fluids, with significant concentrations gracing various fruits and vegetables, particularly in citrus fruits like lemons and limes. Functionally, citric acid is an acidifier, flavoring agent, and chelating agent.
2.It finds application as a sequestering agent for trace metals and is crucial in determining citrate-soluble phosphorus pentoxide.
3. Citric Acid offers several benefits in different applications. In the food and beverage industry, it acts as a natural preservative, enhances flavor, and adjusts pH levels. In the pharmaceutical industry, Citric Acid aids in formulating medicines and supplements. In cleaning agents, it helps remove mineral deposits and scale. Moreover, Citric Acid is eco-friendly and biodegradable, making it a preferred choice for sustainable products.
4. Citric Acid has multiple applications across different industries. It is primarily used as an acidulant, flavoring agent, and preservative in the food and beverage industry. It is also utilized to produce pharmaceuticals, dietary supplements, cosmetics, and personal care products. Additionally, Citric Acid finds applications in cleaning agents, descaling agents, and water treatment formulations.
Storge & Handling
Stored in sealed container in a dry, cool and clean place.
Packing
25KG/Bag