• Citric acid

Citric acid

  • CasNo:77-92-9
  • Purity:99%

Product Details;

CasNo: 77-92-9

Molecular Formula: C6H8O7

Appearance: White crystalline powder

Chinese Factory Supply Sale 77-92-9 Competitive Price. We supply high quality Citric acid (CAS 77-92-9), in stock, factory directly supply to clients, lower prices, more competitiveness.

What is the Citric acid ?

Citric acid is a white crystalline powder with the molecular formula C6H8O7. It is a weak organic acid found in most plants and many animals, serving as an intermediate in cellular respiration. Citric acid contains three carboxyl groups, making it a tricarboxylic acid. Citric acid exists in two forms: anhydrous and monohydrate. The anhydrous form crystallizes in hot solutions, while the monohydrate form crystallizes from cold solutions below 36.5°C. Anhydrous citric acid has a solubility of 146 g/100 ml of distilled water at 20°C, and the monohydrate form has a solubility of 175 g/100 ml at the same temperature. A 1% solution of citric acid has a pH of 2.3 at 25°C.

What is the CAS number for Citric acid ?

The CAS number of Citric acid is 77-92-9.

More information of Citric acid 77-92-9 are:

CAS Number


Molecular Formula


Molecular Weight



1.762 g/cm3

Melting Point

153-159 °C(lit.)

Boiling Point

309.567 °C at 760 mmHg

Flash Point

155.243 °C


2918.14 Oral rat LD50: 3000 mg/kg






3.14(at 20℃)

What is Citric acid (77-92-9) used for?

Citric acid is a hygroscopic, strong acid with a tart flavor. It is commonly used as an acidulant in various applications, such as fruit drinks and carbonated beverages (at 0.25-0.40%), in cheese (at 3-4%), and in jellies. It also serves as an antioxidant in products like instant potatoes, wheat chips, and potato sticks, where it helps prevent spoilage by trapping metal ions. Additionally, citric acid is used in combination with other antioxidants during the processing of fresh-frozen fruits to prevent discoloration.


Articles related to Citric acid:



The role of citric acid in intermediate metabolism in animal tissues

H.A. Krebs, W.A. Johnson

, FEBS Letters, Volume117, IssueS1 August 25, 1980 Pages K2-K10

Discovery and Biosynthesis of Bolagladins: Unusual Lipodepsipeptides from Burkholderia gladioli Clinical Isolates**

Challis, Gregory L.,Dashti, Yousef,Jian, Xinyun,Mahenthiralingam, Eshwar,Mullins, Alex J.,Nakou, Ioanna T.,Webster, Gordon

, (2020)

Chinese Factory Supply Sale 77-92-9 with Competitive Price

Hebei Tuhang Import and Export Trade Co., Ltd is a quality supplier and manufacturer of Citric acid . You can buy high quality, low price Citric acid 77-92-9 here. Contact us.