Caractéristiques :
Niveau de qualité : 100
Agence/méthode :
meets analytical specifications of BP
meets analytical specifications of E422
meets analytical specifications of Ph. Eur.
meets analytical specifications of USP
reg. compliance : meets analytical specifications of FCC
Densité de vapeur : 3.1 (vs air)
Pression de vapeur : <1 mmHg (20°C)
Qualité : puriss. ; meets analytical specification of Ph. Eur., BP, USP, FCC, E422
Essai/Dosage :
99.0-101.0% (alkalimetric)
99.0-101.0% (calc. on H2O free substance)
Forme : liquide
Température d'inflammation spontanée : 698 °F
Application(s) :
IR spectroscopy: suitable
electrophoresis: suitable
Impuretés :
acidity or alkalinity, complies
acrolein, glucose and NH4-compounds, complies
ester, complies
fatty acids and esters, complies
impurities A and related substances (GC), complies
residual solvents, complies
sugar, complies
≤ 0.003% free acid (as CH3COOH)
≤ 0.2% 1,2,4-butantriole (GC)
≤ 10 ppm aldehydes (as HCHO)
≤ 2% water (Karl Fischer)
≤ 30 ppm halogen compounds (as Cl)
≤ 5 ppm heavy metals (as Pb)
Résidus de calcination : ≤0.01% (as SO4)
Indice de réfraction :
n20/D 1.471-1.474
n20/D 1.474 (lit.)
pH : 5.5-8
Point de bulle : 182°C/20 mmHg (lit.)
Pf : 20°C (lit.)
Densité :
1.2580-1.2644 g/mL at 20°C
≥ 1.257 g/mL at 25°C
1.25 g/mL (lit.)
Traces d'anions :
chloride (Cl-): ≤10 ppm
sulfate (SO42-): ≤10 ppm
Traces de cations :
As: ≤1 ppm
Cu: ≤0.001%
Pb: ≤1 ppm
Zn: ≤0.001%
Adéquation :
complies for appearance of solution
complies for reaction against H2SO4
corresponds for chromatography
passes test for identity (IR)