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Citric Acid CAS: 77-92-9 C6h8o7

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    2017-12-22 04:11

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Tianjin Tiger International Trade Co., Ltd.

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Product Details


Product Name: Citric acid
Synonyms: 1,2,3-Tricarboxy-2-hydroxypropane;2-hydroxypropanetricarboxylicacid;acidecitrique;Aciletten;Anhydrous citric acid;anhydrouscitricacid;beta-Hydroxytricarballylic acid;beta-hydroxytricarballylicacid
CAS: 77-92-9
MF: C6H8O7
MW: 192.12
EINECS: 201-069-1
mp  153-159 °C(lit.)
density  1.542
FEMA  2306
refractive index  1.493~1.509
Fp  100 °C
storage temp.  Store at RT.
solubility  H2O: 1 M at 20 °C, clear, colorless
form  grit
Water Solubility  750 g/L (20 ºC)
Sensitive  Hygroscopic
Merck  14,2326
BRN  782061
Stability: Stable. Incompatible with bases, strong oxidizing agents, reducing agents, metal nitrates.
CAS DataBase Reference 77-92-9(CAS DataBase Reference)

Distributed in nature Citric acid is widely distributed in nature, found in plants such as lemon, orange, pineapple, currant, raspberry, Grape Juice fruit and animal bones, muscles, blood. Citric acid is synthesized with sugar, starch, molasses, grapes and other sugary material fermentation, can be divided into anhydrous and two kinds of pure hydrate. Citric acid is a colorless transparent crystal or white powder, odorless, has an attractive acidity. Translucent colorless crystals obtained from concentrated aqueous solution of heat in the anhydrous melting point is 153ºC. Translucent colorless crystals obtained from water solution is a water softening, the density is 1.542.75 at about 100ºCmelting. One water compoment can loss water in dry air. It is a strong organic acid. It is soluble in water, ethanol and ether. Used in the manufacture of drugs, soda, candy, also used as a metal cleaning agent, mordant.
Many kinds of fruits and vegetables, especially citrus fruits contain more citric acid, especially lemon and lime -- they contain a lot of citric acid, after drying, the content is up to 8% (in the juice content is about 47 g / L). In the citrus fruits, the content of citric acid is between 0.005 mol / L of orange and grape and 0.30 mol / L of lemon and lime . The content changes different from cultivars and plant growth.