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CAS No 77-92-9 , 2-hydroxypropane-1,2,3-tricarboxylic acid

  • Name: 2-hydroxypropane-1,2,3-tricarboxylic acid
  • Synonyms: Anhydrous citric acid; Citric acid;Citro; Aciletten; anhydrous; 77-92-9; Citretten; Hydrocerol A; citrate; Chemfill;2-hydroxypropane-1,2,3-tricarboxylic acid;
  • CAS Registry Number:
  • Transport: UN 1789 8/PG 3
  • Melting Point: 153-154.5 ºC
  • Flash Point: 100 ºC
  • Density: 1.542
  • Refractive index: 1.493~1.509
  • Water Solubility: 750 G/L (20 ºC)
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • Flash Point: 100 ºC
  • EINECS: 201-069-1
  • Molecular Weight: 192.12352
  • InchiKey: KRKNYBCHXYNGOX-UHFFFAOYSA-N
  • InChI: InChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,
    10)(H,11,12)
  • Risk Statements: S26;S37/39
  • Molecular Formula: C6H8O7
  • Molecular Structure:CAS No:77-92-9 2-hydroxypropane-1,2,3-tricarboxylic acid
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77-92-9 Citric acid, 99+%

  • Citric acid, 99+%
  • Belgium Alkemi [Manufacturer]
  • Tel: +32 9 340 49 49
  • Fax: +32 9 340 49 47
  • Address: Poststraat, 82 B-9160 Lokeren Belgium ,Belgium
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77-92-9 Olsalazine sodium

  • Olsalazine sodium, 99,00%
  • China Zeniview Chemistry Technology Co., Ltd. [Manufacturer]
  • Tel: +86-25-86088590
  • Fax: +86-25-85612276
  • Address: No.05,No.01 Hangzhongmen Dajie, Nanjing, China 210016 Nanjing CHINA 210016 NanjingCHINA Nanjing,China
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77-92-9 CITRIC ACID ANHYDROUS

  • CITRIC ACID ANHYDROUS, 99.5+% GR ACS
  • United States INTERNATIONAL LABORATORY LIMITED [Manufacturer]
  • Tel: ( 650 ) 278-9963
  • Fax: ( 650 ) 589-2786
  • Address: 1067 SNEATH LN SAN BRUNO CA 94066, USA SAN BRUNOUNITED STATES SAN BRUNO,United States
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77-92-9 Citric acid

  • Citric acid, Min 99%
  • China Finechemie Co., Ltd. [Manufacturer]
  • Tel: +86-23-99186710
  • Fax: +86-23-99186729
  • Address: 28th Floor Mordern Building,New-Tech Zone400020 ChongqingCHINA Chongqing,China
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77-92-9 Citric Acid

  • Citric Acid
  • China Shenzhen sailing chemical Co.,Ltd [Manufacturer]
  • Tel: 86-755-26415005
  • Fax: 86-755-26412646
  • Address: 1-403 Bei tou hao yuan Nanxing Road Nanshan District Shenzhen, Guangdong 518051 shenzhenCHINA shenzhen,China
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77-92-9 Citric Acid

  • Citric Acid, 99%
  • China Facus Pharmaceutical Co., Ltd. [Manufacturer]
  • Tel: +86-(0)574-62378411
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  • Address: 24Fl,Yuanjing Building,Beilun District, Zhejiang 315800 NingboCHINA Ningbo,China
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77-92-9 CITRIC ACID(RG)

  • CITRIC ACID(RG)Citric acid
  • United States ChromaDex Inc. [Manufacturer]
  • Tel: 949-419-0288
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  • Address: ChromaDex Inc.
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77-92-9 Citric acid

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77-92-9 Citric acid

  • Hong kong ADVANCED TECH. & IND. CO., LTD. [Distributor/Wholesaler]
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77-92-9 Citric Acid Anhydrous

  • China Ningbo Inno Pharmchem Co., Ltd. [Manufacturers]
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  • Address: 5F, Building 4, 1035 Guangxian Rd., Ningbo Hi-Tech Park, Ningbo, Zhejiang 315040, Ningbo,ZhejiangChina
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References of 2-hydroxypropane-1,2,3-tricarboxylic acid
Title: Citric Acid
CAS Registry Number: 77-92-9
CAS Name: 2-Hydroxy-1,2,3-propanetricarboxylic acid
Synonyms: b-hydroxytricarballylic acid
Molecular Formula: C6H8O7
Molecular Weight: 192.12
Percent Composition: C 37.51%, H 4.20%, O 58.29%
Literature References: Widely distributed in plants and in animal tissues and fluids. Produced by mycological fermentation on an industrial scale using crude sugar solns, such as molasses and strains of Aspergillus niger: See review by Von Loesecke, Chem. Eng. News 23, 1952 (1945); Schweiger, US 2970084 (1961 to Miles Labs.); Faith, Keyes & Clark's Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience, New York, 4th ed., 1975) pp 275-279. Also extracted from citrus fruits (lemon juice contains 5 to 8%) and from pineapple waste. Reviews: Wilson, Chem. Metall. Eng. 29, 787 (1923); Browne, Ind. Eng. Chem. 13, 81 (1921); Warneford, Hardy, ibid. 17, 1283 (1925); E. F. Bouchard, E. G. Merritt in Kirk-Othmer Encyclopedia of Chemical Technology vol. 6 (Wiley-Interscience, New York, 3rd ed., 1979) pp 150-179. Toxicity: C. M. Gruber, Jr., W. A. Halbeisen, J. Pharmacol. Exp. Ther. 94, 65 (1948).
Properties: Anhydr form, mp 153°. Crystals are monoclinic holohedra and crystallize from hot concd aq soln. d 1.665. At 25°, pK1 3.128; pK2 4.761; pK3 6.396, Bates, Pinching, J. Am. Chem. Soc. 71, 1274 (1949). Soly in water: 54.0% w/w at 10°; 59.2% at 20°; 64.3% at 30°; 68.6% at 40°; 70.9% at 50°; 73.5% at 60°; 76.2% at 70°; 78.8% at 80°; 81.4% at 90°; 84.0% at 100°. LD50 in mice, rats (mmol/kg): 5.0, 4.6 i.p. (Gruber, Halbeisen).
Melting point: mp 153°
pKa: pK1 3.128; pK2 4.761; pK3 6.396, Bates, Pinching, J. Am. Chem. Soc. 71, 1274 (1949)
Density: d 1.665
Toxicity data: LD50 in mice, rats (mmol/kg): 5.0, 4.6 i.p. (Gruber, Halbeisen)
 
Derivative Type: Monohydrate
Properties: Orthorhombic crystals from cold aq solns. Pleasant, sour taste. d 1.542. Monohydrate crystals lose water of crystn in dry air or when heated at about 40 to 50°, slightly deliquescent in moist air. Softens at 75°. mp ~100°. pH of 0.1N soln = 2.2. Densities of aqueous soln (15°/15°): 10% = 1.0392; 20% = 1.0805; 30% = 1.1244; 40% = 1.1709; 50% = 1.2204; 60% = 1.2738. Soly in g/100 g satd soln: ether 2.17; chloroform 0.007; amyl alcohol 15.43; amyl acetate 5.98; ethyl acetate 5.28. Soly at 19° in g/100 g solvent: methanol 197; propanol 62.8.
Melting point: mp ~100°
Density: d 1.542; Densities of aqueous soln (15°/15°): 10% = 1.0392; 20% = 1.0805; 30% = 1.1244; 40% = 1.1709; 50% = 1.2204; 60% = 1.2738
 
Derivative Type: Barium salt heptahydrate
Synonyms: Barium citrate
Molecular Formula: C12H10Ba3O14.7H2O
Molecular Weight: 916.29
Percent Composition: C 15.73%, H 2.64%, Ba 44.96%, O 36.67%
Properties: Powder. Loses all H2O at 150°. Sol in 1750 parts water; freely sol in dil HCl or HNO3; practically insol in alcohol.
 
Derivative Type: Ethyl ester
Synonyms: Ethyl citrate; triethyl citrate
Molecular Formula: C12H20O7
Molecular Weight: 276.28
Percent Composition: C 52.17%, H 7.30%, O 40.54%
Properties: Bitter, oily liq. d20 1.137. bp760 294°; bp1.0 127°. Viscosity at 25°: 35.2 cP. Pour pt ~10°. nD20 1.4455. Soly: water ~6.9%; peanut oil 0.8%. Misc with alc, ether.
Boiling point: bp760 294°; bp1.0 127°
Index of refraction: nD20 1.4455
Density: d20 1.137
 
Derivative Type: Disodium salt
CAS Registry Number: 144-33-2
Synonyms: Disodium hydrogen citrate; sodium acid citrate
Trademarks: Alkacitron (PDH)
Molecular Formula: C6H6Na2O7
Molecular Weight: 236.09
Percent Composition: C 30.52%, H 2.56%, Na 19.48%, O 47.44%
Properties: White powder, saline taste. One gram of sesquihydrate dissolves in slightly less than 2 ml water; pH of a 3% w/v soln in water: 4.9 to 5.2. LD50 in mice, rats (mmol/kg): 7.5, 7.3 i.p. (Gruber, Halbeisen).
Toxicity data: LD50 in mice, rats (mmol/kg): 7.5, 7.3 i.p. (Gruber, Halbeisen)
 
Derivative Type: Trisodium salt
Literature References: See Sodium Citrate.
 
Use: Anticoagulant, generally in solution with glucose, to prevent the clotting of blood intended for transfusion. Acidulant in beverages, confectionery, effervescent salts, in pharmaceutical syrups, elixirs, in effervescent powders and tablets, to adjust the pH of foods and as synergistic antioxidant, in processing cheese. Used in beverages, jellies, jams, preserves and candy to provide tartness. In the manuf of alkyd resins; in esterified form as plasticizer, foam inhibitor. In the manuf of citric acid salts. As sequestering agent to remove trace metals. As mordant to brighten colors; in electroplating; in special inks; in analytical chemistry for determining citrate-soluble P2O5; as reagent for albumin, mucin, glucose, bile pigments.