Keywords

• Citretten
• .beta.-Hydroxytricarballylic acid
• K-Lyte

Quick Details

• ProName: Citric acid
• CasNo: 77-92-9
• Molecular Formula: C6H8O7
• Appearance: colorless crystalline or white crystal...
• Application: Citric acid is a weak organic tricarbo...
• ProductionCapacity: /
• Purity: 98
• Storage: Avoid light, sealed, dry and cool plac...
• LimitNum: 0
• Density: 1.8±0.1 g/cm3
• Boiling Point: 309.6±42.0 °C at 760 mmHg
• Melting Point: 153-159 °C(lit.)
• Molecular Weight : 192.124
• Flash Point: 155.2±24.4 °C
• Exact Mass: 192.027008
• PSA: 132.13000
• LogP: -1.72
• Vapour Pressure : 0.0±1.5 mmHg at 25°C

Superiority

Jilin Tianyun New Materials Co., Ltd. is a professional production enterprise that production, processing, and export, mainly engaged in various organic chemicals. The company has a wealth of professional experience, reliable product quality, reasonable prices, and products are exported to countries around the world, which can meet your diverse needs. In our business cooperation with clients, we always adhere to the principle of equality and mutual benefit, and are deeply trusted and recognized by our clients. If you are interested in our company and our products, please feel free to visit our website or contact us directly for more information.We look forward to establishing a long-term stable and win-win business relationship with you.

Details

Physical

At room temperature, citric acid is colorless translucent or white granules or white crystalline powder, odorless, extremely acidic, astringent, weakly corrosive, strong deliquescent, and accompanied by the formation of crystalline water compounds, slightly deliquescent in humid air. It can exist in the form of anhydrate or monohydrate: when citric acid crystallizes from hot water, it produces anhydrate; Crystallization in cold water produces monohydrate. When heated to 78 °C, monohydrate decomposes to anhydrate. At 15 degrees Celsius, citric acid is also soluble in it.

The crystallization form of citric acid varies according to different crystallization conditions, including anhydrous citric acid C6H8O7 and citric acid 2C6H8O7.H2O and C6H8O7 containing crystalline water. H2O or C6H8O7.2H?O.

Main uses:

Used in the food industry

Because citric acid has a mild and refreshing sour taste, it is widely used in the manufacture of various beverages, soft drinks, wines, candies, snacks, biscuits, canned fruit juices, dairy products and other foods. Citric acid accounts for more than 70% of all organic acids in the market, and there is no acidulant that can replace citric acid so far. One molecule of crystalline water citric acid is mainly used as an acidic flavoring agent for soft drinks, fruit juices, jams, fruit sugars and canned food, and can also be used as an antioxidant for edible oils. At the same time, it improves the sensory properties of food, enhances appetite and promotes the digestion and absorption of calcium and phosphorus substances in the body. Anhydrous citric acid is used in large quantities in solid beverages. Citric acid salts such as calcium citrate and ferric citrate are fortifiers that require the addition of calcium and iron ions in some foods. Esters of citric acid, such as triethyl citrate, can be used as non-toxic plasticizers, plastic films for food packaging, and acidulants in the beverage and food industries.

It is used in the chemical and textile industries

Citric acid can be used as a reagent for chemical analysis in chemical technology, as an experimental reagent, chromatographic analysis reagent and biochemical reagent; used as complexing agent, masking agent; It is used to prepare buffer solutions. The use of citric acid or citrate as a detergent can improve the performance of washing products, can quickly precipitate metal ions, prevent contaminants from re-attaching to the fabric, and maintain the necessary alkalinity for washing; disperse and suspend dirt and ash; Improve the performance of surfactant, is an excellent chelating agent; It can be used as a reagent to test the acid resistance of architectural ceramic tiles.

Contamination of clothing is already a very sensitive problem, citric acid and modified citric acid can be made into a formaldehyde-free anti-wrinkle finishing agent, which is used for the anti-wrinkle finishing of cotton fabrics. Not only is it wrinkle-resistant, but it also has a low cost.

For environmental protection

Citric acid buffer is used for flue gas desulfurization. China's abundant coal resources are a major part of the energy source, but there has been a lack of effective flue gas desulfurization process, resulting in serious atmospheric SO2 pollution. At present, China's annual SO2 emissions have reached nearly 40 million tons, and it is urgent to study an effective desulfurization process. Citric acid-sodium citrate buffer solution due to its low vapor pressure, non-toxic, chemically stable, high absorption rate of SO2.

It is used in livestock production

Adding citric acid to piglets can be weaned early, improve feed utilization rate by 5%~10%, and increase the number of sows farrowing. Adding 1%~2% citric acid to the diet of growing and fattening pigs can increase daily gain, reduce the feed-to-meat ratio, improve protein digestibility, reduce the thickness of back fat, and improve meat quality and carcass characteristics. Rare earth citrate is a new type of high efficiency, suitable for pigs, chickens, fish, shrimp, cattle, sheep, rabbits, silkworms and other animals, with the characteristics of promoting animal growth, improving product quality, improving disease resistance and survival rate, improving feed conversion rate, shortening the feeding cycle.