Citric Acid CAS#77-92-9

Synonyms:

BETZ 6251;BETZ 0623;CITRIC ACID FREE ACID, ANHYDROUS PLANTCE LL CULTURE;CITRIC ACID 99.5+% FCC;CITRIC ACID, 500MG, NEAT;Citric acid, anhydrous, for analysis ACS, 99.6%;Citric acid, anhydrous, for analysis, 99.5%;Citric acid, anhydrous, pure, 99%

CAS:

77-92-9

MF:

C6H8O7

MW:

192.12

EINECS:

201-069-1

Product Categories:

Buffer Solutions, pH 5 - 9pH Buffers for Titration;Buffer Solutions;Other Buffer Solutions;ACS Grade;ACS Grade Buffers;Bioactive Small Molecules;Biochemicals and Reagents;Biological Buffers;Buffers A to Z;Building Blocks;Carbonyl Compounds;Carboxylic Acids;Cell Biology;Chelators;Chemical Synthesis;CI-CY;Essential Chemicals;Inorganic Salts;Nutrition Research;Organic Building Blocks;Other Biochemical;Phytochemicals by Chemical Classification;Research Essentials;Solutions and Reagents;AlphabeticalBiochemicals and Reagents;BioUltra Buffers;ChelatorsBiochemicals and Reagents;Luminescent Compounds/Detection;Solvents, Buffers and Reagents for Luminescence;Biological Buffers;Biological BuffersBiological Buffers;Buffers A to ZProtein Electrophoresis;Capillary Zone ElectrophoresisBiochemicals and Reagents;ChelatorsNutrition Research;Other Biochemical;Biochemicals Found in Plants;Capillary Electrophoresis;Cell Culture;Reagents and Supplements;Buffer Concentrates (FIXANAL);pH Buffers for Titration;Titration;C6Nutrition Research;Carbonyl Compounds;Carboxylic Acids;Food & Flavor Additives;Other BiochemicalPharmacopoeia (USP);Pharmacopoeial OrganicsCell Culture;USP Chemicals and ReagentsBiological Buffers;USP/MultiCompendial Grade BuffersMore...Close...;Pharmacopoeia A-ZPharmacopoeia (USP);Alphabetical Listings;C-D;Flavors and Fragrances;Buffers A to ZBiochemicals and Reagents;Biochemicals and Reagents;Other BiochemicalEssential Chemicals;Reagent Grade;Pharmacopoeia A-ZBiological Buffers;Pharmacopoeia (USP);USP/MultiCompendial Grade Buffers;Food additive and acidulant;Water Ttreatment Chemicals;FOOD ADDITIVES;CI - CLOther Lipid Related Products;NeatsChromatography;Alphabetic;C;Fatty AcidsFA/FAME/Lipids/Steroids;Food&Beverage Standards;Free Fatty Acids;Lipid Analytical Standards;Organic Acids;C6Biochemicals and Reagents;Other BiochemicalMore...Close...;ACS Grade BuffersBiological Buffers;ACS GradeBiological Buffers;Buffers A to ZCarbonyl Compounds;Essential Chemicals;Routine Reagents;77-92-9;C6

Mol File:

77-92-9.mol

Citric acid Chemical Properties

Boiling point 

248.08°C (rough estimate)

density 

1.67 g/cm3 at 20 °C

bulk density

560kg/m3

vapor density 

7.26 (vs air)

vapor pressure 

<0.1 hPa (20 °C)

refractive index 

1.493~1.509

FEMA 

2306 | CITRIC ACID

Fp 

100 °C

storage temp. 

2-8°C

solubility 

Citric acid also dissolves in absolute (anhydrous) ethanol (76 parts of citric acid per 100 parts of ethanol) at 15 °C.

form 

grit

pka

3.14(at 20℃)

color 

White

PH

3.24(1 mM solution);2.62(10 mM solution);2.08(100 mM solution);

Odor

Odorless

biological source

synthetic

Odor Type

odorless

explosive limit

8%, 65°F

Water Solubility 

soluble in Water (1174g/L at 10°C, 1809g/L at 30°C, 3825g/L at 80°C).

Sensitive 

Hygroscopic

λmax

λ: 260 nm Amax: 0.20
λ: 280 nm Amax: 0.10

Merck 

14,2326

JECFA Number

218

BRN 

782061

Stability:

Stable. Incompatible with bases, strong oxidizing agents, reducing agents, metal nitrates.

InChIKey

KRKNYBCHXYNGOX-UHFFFAOYSA-N

LogP

-1.64

CAS DataBase Reference

77-92-9(CAS DataBase Reference)

NIST Chemistry Reference

1,2,3-Propanetricarboxylic acid, 2-hydroxy-(77-92-9)

EPA Substance Registry System

Citric acid (77-92-9)