5949-29-1

CAS Nr.:

5949-29-1

Citric acid

EINECS Name:

Citric acid

201-069-1

EINECS Nr.:

201-069-1

Zitronensäure / 2-Hydroxypropan-1,2,3-tricarbonsäure / 2-Hydroxypropyl-1,2,3-tricarbonsäure / 3-Carboxy-3-hydroxyglutarsäure / 2-Hydroxy-1,2,3-propantricarbonsäure / E 330 / 2-Hydroxy-1,2,3,propane-tricarboxylic acid, monohydrate / 2-Hydroxytricarballylic acid monohydrate / Hydrous citric acid / E330

Synonym:

Zitronensäure / 2-Hydroxypropan-1,2,3-tricarbonsäure / 2-Hydroxypropyl-1,2,3-tricarbonsäure / 3-Carboxy-3-hydroxyglutarsäure / 2-Hydroxy-1,2,3-propantricarbonsäure / E 330 / 2-Hydroxy-1,2,3,propane-tricarboxylic acid, monohydrate / 2-Hydroxytricarballylic acid monohydrate / Hydrous citric acid / E330

Citric acid, identified by the CAS number 5949-29-1, is a widely used chemical raw material with applications across numerous industries. Naturally found in citrus fruits such as lemons and oranges, citric acid is an organic acid known for its versatile physical properties and wide range of uses.

Physical Properties

Citric acid has a molar mass of 192.13 g/mol and appears as a white, crystalline powder in its pure form. It has a melting point of approximately 153 degrees Celsius and is highly soluble in water, even at low temperatures. At 20°C, its solubility in water is about 133 g/100 ml. Citric acid is also soluble in ethanol and ether, which expands its application possibilities. The acid has a pH of around 2.2 in a 1% solution, making it a strong acid among organic acids.

Applications of Citric Acid

Citric acid is an essential component in the food and beverage industry. It is used as an acidulant, preservative, and flavor enhancer. In beverages, candies, jams, and dressings, it provides a fresh, tart taste and extends shelf life by lowering the pH.

In the cleaning industry, citric acid is widely used. It is found in many household cleaners, descalers, and dishwashing detergents due to its effectiveness in removing limescale and other mineral deposits. Its ability to dissolve scale makes it an ideal ingredient in products for cleaning coffee machines, kettles, and bathroom surfaces.

Citric acid is used in the cosmetic industry as a pH adjuster and as an ingredient in skincare products. It helps stabilize the pH of creams, shampoos, and shower gels and can aid in exfoliation by removing dead skin cells and smoothing the skin.

In the pharmaceutical industry, citric acid is used in the production of medications and dietary supplements. It serves as a pH buffer and stabilizer in various drugs and vitamins. Additionally, it is used in effervescent tablets to ensure quick dissolution and absorption

Citric acid (CAS No. 5949-29-1) is a versatile chemical raw material with significant physical properties that make it suitable for a wide range of applications across different industries. Whether in the food and beverage industry, cleaning agents, cosmetics, or pharmaceuticals, citric acid is an indispensable component of modern production and care. Its natural origin and diverse usability make it a preferred choice for many manufacturers worldwide.