Well Sale Product Food Grade Citric Acid Monohydrate CAS77-92-9

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MF: C6H10O8
MW: 210.1388
CAS: 5949-29-1

1.Citric acid monohydrate is colorless crystal or white crystalline powder, with a density of 1.54. Melting point 135-152 ℃. Flash point 173.9 ℃. Water soluble 1630 g/l (20 ℃).

2.Colorless crystal or white crystalline powder.

3.White crystalline powder, easily soluble in methanol and water, from dark plum, sweet orange and lemon juice.

4.This product is mainly produced by fermentation. Its raw materials can be carbohydrates such as molasses, sucrose, sweet potatoes and petroleum hydrocarbons. Generally, fungi are used for fermentation. According to the fermentation mode, it can be divided into surface fermentation and deep fermentation. Surface fermentation is an early production method, using some Penicillium or Aspergillus niger as strains; In the submerged fermentation method, Aspergillus niger is also used as a strain. During the fermentation process, a small ball of chemicalbook shaped mycelium polymer is generated. The growth and thin mycelium should be avoided. The fermentation condition is that the pH value is 1.5 ~ 2.8. At the same time, sterile air should be introduced and stirred. After the fermentation, the mycelium and residual solid waste should be filtered out. The filtrate is neutralized with calcium carbonate to obtain calcium citrate, and then neutralized with concentrated sulfuric acid to obtain crude citric acid, The finished product is refined, concentrated and crystallized by ion exchange resin.


1.Citric acid monohydrate is mainly used in food and beverage industry as sour agent, seasoning agent, preservative and preservative. It is also used as antioxidant, plasticizer and detergent in chemical industry, cosmetics industry and washing industry.

2.It is mainly used as a sour agent for food, and also used to prepare pharmaceutical coolants, detergent additives, etc.

3.Detect bismuth, nitrite, oxygen and water, determine aluminum, copper, mercury, nickel, oxygen and thorium, use as multivalent chelating agent, remove trace metals, prepare buffer solution, and determine blood potassium.

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