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  • Citric acid CAS#77-92-9
  • Citric acid CAS#77-92-9
  • Citric acid CAS#77-92-9
  • Citric acid CAS#77-92-9
  • Citric acid CAS#77-92-9

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Citric acid CAS#77-92-9

Citric acid CAS#77-92-9

Basic Information

Natural Component: Anhydrous citric acid is a naturally occurring substance and an intermediate product in the physiological metabolism of both animals and plants.


Wide Applications: It is one of the most widely used organic acids in the food, pharmaceutical, and chemical industries due to its versatility.


Physical Properties: The product is a colorless, transparent or translucent crystal, which can also exist as granular or microparticle powder. It is odorless with a strong, pleasant sour taste and a slightly astringent aftertaste.


Environmental Sensitivity: Anhydrous citric acid gradually weathers in warm air and is slightly deliquescent in humid environments, indicating its sensitivity to moisture.



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product description

Product Description of Citric Acid CAS#77-92-9

Anhydrous citric acid is a naturally occurring compound and an intermediate product in the physiological metabolism of both animals and plants. It is one of the most widely used organic acids in the food, pharmaceutical, and chemical industries. This product appears as a colorless, transparent or translucent crystal, and can also be found in granular or microparticle powder form. It is odorless with a strong sour taste, yet pleasant, leaving a slightly astringent aftertaste. Anhydrous citric acid is prone to gradual weathering in warm air and is slightly deliquescent in humid conditions.


Product Application of Citric Acid CAS#77-92-9

Acidity regulator; proteomics; flavors and fragrances; organic acids; food additives; additives; Chinese medicine reference substances; analytical standards; plant extracts; acidulants; citric acid monohydrate; organic chemical raw materials; Chinese Pharmacopoeia test solution; organic raw materials; flavoring agents.


Product Information

Parameters


Melting point153-159 °C (lit.)
Boiling point248.08°C (rough estimate)
density1.67 g/cm3 at 20 °C
bulk density560kg/m3
vapor density7.26 (vs air)
vapor pressure<0.1 hPa (20 °C)
refractive index1.493~1.509
FEMA2306 | CITRIC ACID
Fp100 °C
storage temp.2-8°C
solubilityCitric acid also dissolves in absolute (anhydrous) ethanol (76 parts of citric acid per 100 parts of ethanol) at 15 °C.
formgrit
pka3.14(at 20℃)
colorWhite
PH3.24(1 mM solution);2.62(10 mM solution);2.08(100 mM solution);
OdorOdorless
biological sourcesynthetic
Odor Typeodorless
explosive limit8%, 65°F
soluble in Water (1174g/L at 10°C, 1809g/L at 30°C, 3825g/L at 80°C).
SensitiveHygroscopic
λmaxλ: 260 nm Amax: 0.20

λ: 280 nm Amax: 0.10
Merck142326
JECFA Numbr218
BRN782061
Stability:Stable. Incompatible with bases, strong oxidizing agents, reducing agents, metal nitrates.
InChIKeyKRKNYBCHXYNGOX-UHFFFAOYSA-N
LogP-1.64
CAS DataBase Reference77-92-9(CAS DataBase Reference)
NIST Chemisty Reference1,2,3-Propanetricarboxylic acid, 2-hydroxy-(77-92-9)
EPA Substance Registry SystemCitric acid (77-92-9)


Safety Information


Hazard CodesXi,C,T
Risk Statements41-36/37/38-36/38-37/38-34-36-35-61-60
Safety Statements26-39-37/39-24/25-36/37/39-45-36-53
RIDADRUN 1789 8/PG 3
WGK Germany1
RTECSGE7350000
F9
TSCAYes
HS Code2918 14 00
Hazardous Substances Data77-92-9(Hazardous Substances Data)
ToxicityLD50 in mice, rats (mmol/kg): 5.0, 4.6 i.p. (Gruber, Halbeisen)


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