
Ácido Cítrico - 6x1 Kg - Sigma
Código: 23905
Ácido cítrico
meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)
About This Item
Fórmula linear:
HOC(COOH)(CH2COOH)2
CAS Number:
Peso molecular:
192.12
Beilstein:
782061
Número CE:
Número MDL:
Código UNSPSC:
12352106
eCl@ss:
39021801
ID de substância PubChem:
NACRES:
NA.21
Nível de qualidade
Ensaio
99.5-100.5% (based on anhydrous substance)
Formulário
grit
qualidade
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)
resíduo de ignição
≤0.05% (as SO4)
pKa
(1) 3.13, (2) 4.76, (3) 6.4
pf
153-159 °C (lit.)
solubilidade
water: 383 g/L at 25 °C
traços de ânion
chloride (Cl-): ≤50 ppm
oxalate (as oxalic acid): ≤100 ppm
sulfate (SO42-): ≤100 ppm
traços de cátion
As: ≤1 ppm
Ca: ≤200 ppm
Cu: ≤10 ppm
Fe: ≤10 ppm
Hg: ≤1 ppm
Pb: ≤0.5 ppm
Zn: ≤10 ppm
adequação
complies for appearance of solution
complies for reaction against H2SO4
cadeia de caracteres 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)
chave InChI
KRKNYBCHXYNGOX-UHFFFAOYSA-N
Informações sobre genes
human ... SRC(6714)
Aplicação
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.[1]
Ações bioquímicas/fisiológicas
Citric acid in dietary form can augments absorption of aluminium in antacids.[2] It also facilitates the phytoremediation of heavy metal contaminated soil and can transform cadmium into more transportable forms.[3]