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Citric Acid丨CAS 77-92-9

CAS: 77-92-9
Chemical Formula/Abbreviation: C6H8O7

Citric Acid is a naturally occurring organic tricarboxylic acid, typically found as a white crystalline powder. Due to its excellent water solubility, stable pH regulating ability, and safety, citric acid is widely used in the food, beverage, pharmaceutical, cosmetics, and industrial sectors, and is one of the most widely used organic acids globally.
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Citric Acid Basic Properties

SynonymsBETZ 0623;BORIC ACID-POTASSIUM CHLORIDE-SODIUM HYDROXIDE BUFFER;BUFFER CONCENTRATE, BORATE/HYDROCHLORIC ACID;BUFFER CONCENTRATE, PH 1.00
Molecular FormulaC6H8O7
AppearanceWhite crystalline powder
Molecular Weight192.12
Melting Point153-159 °C(lit.)
Boiling Point248.08°C (rough estimate)
Density1.542
Vapor Pressure<0.1 hPa (20 °C)
Vapor Density7.26 (vs air)
Refractive Index1.493~1.509
Flash Point100 °C
Acidity Coefficient (pKa)3.14(at 20℃)
Storage ConditionsStore at RT.
SolubilitySoluble in water, ethanol, and diethyl ether; insoluble in benzene; slightly soluble in chloroform
Purity≧ 98%
Package Information100g, 500g, 1kg, or customized

Citric Acid Key Features

Excellent pH regulating ability

Citric acid, as a weak organic acid, can stably regulate the pH value of a system, making it suitable for food and pharmaceutical formulations.

Good water solubility

Its high solubility in water makes it easy to disperse evenly in liquid and solid systems.

High safety profile

Citric acid is typically produced through microbial fermentation and is widely recognized as a safe ingredient, suitable for food and pharmaceutical applications.

Multifunctionality

In addition to regulating acidity, it can also be used as a chelating agent, stabilizer, and buffering agent.

Citric Acid Main Applications

Food and beverages

Citric acid is widely used in beverages, candies, jams, and dairy products to regulate acidity, improve flavor, and enhance product stability.

Pharmaceuticals and health products

In pharmaceuticals and nutritional supplements, this compound is commonly used to adjust pH, improve taste, or as a component of buffering systems.

Household and cleaning products

Citric acid is used in detergents and cleaning products, where it acts as a water softener, a cleaning agent, and a formula stabilizer.

Industrial and technological applications

Citric acid is widely used as a chelating agent and descaling agent in metal surface treatment, water treatment, and industrial cleaning.

Precautions

  1. Citric acid is highly hygroscopic and should be protected from exposure to high humidity; it requires moisture-proof storage.

  2. Contact with strong alkaline substances may cause a neutralization reaction, affecting product performance; therefore, their co-existence should be avoided.

  3. During operation, be careful to control the powder and avoid dust dispersion; wear a protective mask if necessary.

  4. If contact with skin or eyes occurs, rinse immediately with plenty of water; if irritation persists, seek medical attention.

  5. Applications involving food or pharmaceutical grade products must comply with local regulations and quality standards.

  6. During transportation and storage, the packaging should be kept sealed to prevent contamination and clumping.

FAQ

1. What is Citric Acid mainly used for?

This compound is primarily used in various fields, including food and beverages, pharmaceuticals, household cleaning products, and industrial processing.


2. Is Citric Acid natural or synthetic?

Most citric acid is produced through microbial fermentation, derived from natural raw materials.


3. Do you supply Citric Acid in bulk?

Yes, we can typically supply the product in bags, bulk bags, or in loose bulk form, suitable for large-scale industrial purchases.


4. What is the typical lead time for Citric Acid?

Standard products are usually kept in sufficient stock, and delivery times depend on the order quantity.


Wolfa professionally supplies Citric Acid, supporting small-batch sampling and large-volume procurement needs. Packaging options include ordinary glass bottles, glass ampoules, metal ampoules, etc.


For product analysis reports (such as COA) or procurement consulting, please feel free to contact us at jomin@wolfabio.com at any time.

Reliable Sourcing | Custom Synthesis | Consistent Quality for R&D and Scale-Up

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