1. Different applications
    Citric acid monohydrate is mainly used as acidulant, flavoring agent, preservative, preservative in the food and beverage industry. It is also used as antioxidant, plasticizer, detergent in pharmaceutical industry, cosmetic industry and laundry industry.
    Anhydrous citric acid is mainly used as sour agent, acidity regulator, flavoring agent, preservative, preservative in food and beverage industry. Anhydrous citric acid is widely used in the national economy, and many industrial sectors require anhydrous citric acid. The industry that uses the most anhydrous citric acid is pharmaceutical production,
    This is followed by paper, aluminum, tungsten, rayon, rayon and soap. In addition, some borax, chromium salts, manganates, phosphates are also produced in the production of dyes, plastics, chemicals and organic intermediates, the regeneration of old rubber, the production of metallic sodium, the electrolysis of water and the production of inorganic salts. . . . , ETC. ,
    Also use a lot of citric acid. Meanwhile, anhydrous citric acid is an important raw material for the production of polycarbonate, superabsorbent polymer, zeolite, epoxy resin, sodium phosphate, sodium sulfite and a large amount of sodium salt.
  2. Different Medications
    Citric acid monohydrate will cause combustion and explosion when exposed to open fire, heat or contact with oxidants, while citric acid anhydrous has weathering properties in dry weather, deliquescence in humid weather, and decomposes to release water and carbon dioxide above 175 °C.
  3. Molecular weight difference
    The molecular weight of citric acid monohydrate is 581, while the molecular weight of citric acid anhydrous is 420.
  4. Different parts of the body
    The relative density of citric acid monohydrate is 1.542, the melting point is 153°C, the refractive index is 1.493-1.509, and the critical temperature of the crystallization solution is 36.6°C. Properties of anhydrous citric acid: speed 1.54, melting point 135-152℃, flash point 173.9℃, water solubility 1630 g/L.

Citric acid monohydrate is a natural product used to increase the acidity or sour taste of foods and beverages.
Citric acid monohydrate acts as a preservative and antioxidant. It is also used as an acid, flavoring and preservative in juice drinks, candies, biscuits, biscuits, canned fruit, jams and jellies. It differs from other types of citric acid in that it has a moisture percentage of 7.5-9.0.
Citric acid monohydrate is used as a combination compound of acidulants, food additives, pharmaceuticals and antioxidants.
Citric acid monohydrate is a tricarboxylic acid found in citrus fruits. Citric acid is used as an excipient in pharmaceutical formulations due to its antioxidant properties. It maintains the stability of the active ingredient and acts as a preservative. It also acts as an acid to control pH and acts as an anticoagulant by chelating calcium in the blood.
Production Process
Citric acid is found in many plants and can be extracted from lemon juice, which contains 5-8% citric acid or pineapple waste. Anhydrous citric acid can also be produced commercially by fungal fermentation of raw sugar (eg molasses) using Aspergillus niger species. Citric acid was purified by recrystallization; the anhydrous form was obtained from a hot concentrated aqueous solution, and the monohydrate was obtained from a cold concentrated aqueous solution.