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Merck

27109

Sigma-Aldrich

Ácido cítrico

meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)

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About This Item

Fórmula lineal:
HOC(COOH)(CH2COOH)2
Número de CAS:
Peso molecular:
192.12
Beilstein:
782061
Número CE:
Número MDL:
Código UNSPSC:
12352106
eCl@ss:
39021801
ID de la sustancia en PubChem:
NACRES:
NA.21

Nivel de calidad

Ensayo

99.5-100.5% (based on anhydrous substance)

Formulario

grit

calidad

anhydrous
meets analytical specification of Ph. Eur., BP, USP, E330

lim. expl.

8 %, 65 °F

impurezas

residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.5% water (Karl Fischer)

residuo de ign.

≤0.05% (as SO4)

pKa 

(1) 3.13, (2) 4.76, (3) 6.4

mp

153-159 °C (lit.)

solubilidad

water: 383 g/L at 25 °C

trazas de anión

chloride (Cl-): ≤50 ppm
oxalate (as oxalic acid): ≤100 ppm
sulfate (SO42-): ≤100 ppm

trazas de catión

As: ≤1 ppm
Ca: ≤200 ppm
Cu: ≤10 ppm
Fe: ≤10 ppm
Hg: ≤1 ppm
Pb: ≤0.5 ppm
Zn: ≤10 ppm

idoneidad

complies for appearance of solution
complies for reaction against H2SO4

cadena SMILES

OC(=O)CC(O)(CC(O)=O)C(O)=O

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)

Clave InChI

KRKNYBCHXYNGOX-UHFFFAOYSA-N

Información sobre el gen

human ... SRC(6714)

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Aplicación

Citric acid was used as a test reagent for studying whether the novel pyridazinylpiperazine analog TPRV-1 inhibitor can reduce cough reflex induced by citric acid and capsaicin in guinea pig.

Acciones bioquímicas o fisiológicas

Citric acid in dietary form can augments absorption of aluminium in antacids. It also facilitates the phytoremediation of heavy metal contaminated soil and can transform cadmium into more transportable forms.

Pictogramas

Exclamation mark

Palabra de señalización

Warning

Frases de peligro

Clasificaciones de peligro

Eye Irrit. 2 - STOT SE 3

Órganos de actuación

Respiratory system

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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P Slanina et al.
Clinical chemistry, 32(3), 539-541 (1986-03-01)
Ten healthy men ingested, twice daily between meals, during each of the seven-day experimental periods: (a) citric acid (as lemon juice), (b) Al(OH)3, or (c) Al(OH)3 + citric acid. Whole blood sampled after each dietary period was analyzed electrothermally after
Sum Yee Leung et al.
Cough (London, England), 3, 10-10 (2007-12-25)
Cough reflex can be induced by the pepper extract capsaicin and by low pH in guinea-pig airways. Transient receptor potential vanniloid-1 (TPRV-1) is expressed in the sensory and afferent nerve fibres in airways. We hypothesized that a novel pyridazinylpiperazine analog
Y X Chen et al.
Chemosphere, 50(6), 807-811 (2003-04-12)
Adsorption and hydroponics experiments were conducted to study the role of citric acid on the phytoremediation of heavy metal contaminated soil. The results show that addition of citric acid decreased the adsorption of both lead and cadmium, such an effect
Maria José Garcia-Fernandez et al.
Biofouling, 29(3), 261-271 (2013-02-27)
Prevention and management of wound infections receive a lot of attention, since the presence of micro-organisms interferes with the wound-healing process. The aim of this work was to use cyclodextrins (CDs) to endow hydrogels and gauzes with the ability to
Konrad Hoetzenecker et al.
European heart journal, 36(11), 676-685 (2013-01-17)
Supernatants of serum-free cultured mononuclear cells (MNC) contain a mix of immunomodulating factors (secretome), which have been shown to attenuate detrimental inflammatory responses following myocardial ischaemia. Inflammatory dilated cardiomyopathy (iDCM) is a common cause of heart failure in young patients.

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