Citric acid
CAS Number: 77-92-9
Chemical Formula: C6H8O7
Synonyms:
BETZ 6251
BETZ 0623
CITRIC ACID FREE ACID
Appearance: Colorless, transparent or translucent crystals
HS Code: 2918140000
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of Citric acid CAS#77-92-9
Anhydrous citric acid is a natural component and intermediate in the physiological metabolism of animals and plants. It is also one of the most widely used organic acids across the food, pharmaceutical, and chemical industries. It appears as a colorless, transparent, or translucent crystal, or as a granular or microgranular powder. It is odorless, with a strong yet pleasant sour taste and a slightly astringent aftertaste. It gradually effloresces in warm air and is slightly deliquescent in humid air.Parameters
Parameters
Melting point | 153-159 °C (lit.) |
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 |
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 |
Merck | 14,2326 |
JECFA Numbr | 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 Chemisty Reference | 1,2,3-Propanetricarboxylic acid, 2-hydroxy-(77-92-9) |
EPA Substance Registry System | Citric acid (77-92-9) |
Safety Information
Hazard Codes | Xi,C,T |
Risk Statements | 41-36/37/38-36/38-37/38-34-36-35-61-60 |
Safety Statements | 26-39-37/39-24/25-36/37/39-45-36-53 |
RIDADR | UN 1789 8/PG 3 |
WGK Germany | 1 |
RTECS | GE7350000 |
F | 9 |
TSCA | Yes |
HS Code | 2918 14 00 |
Hazardous Substances Data | 77-92-9(Hazardous Substances Data) |
Toxicity | LD50 in mice, rats (mmol/kg): 5.0, 4.6 i.p. (Gruber, Halbeisen) |
Product Application of Citric acid CAS#77-92-9
Acidity regulators, proteomics, flavors and fragrances, organic acids, food additives, additives, traditional Chinese medicine reference substances, analytical standards, plant extracts, acidulants, citric acid monohydrate, organic chemical raw materials, Chinese Pharmacopoeia test solutions, organic raw materials, flavoring agents
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