Sinônimos L-a-Aminosuccinic acid, L-alpha-Aminosuccinic acid, Asp

Informações sobre o produto
Número CAS 56-84-8
Número CE 200-291-6
Fórmula de Hill C4H7NO4
Molar Mass 133.1 g/mol
Código HS 2922 49 85,

Informações fisico-químicas
Ponto de fusão 269 - 271 °C (decomposição)
Valor do pH 2.5 - 3.5 (4 g/l, H2O, 20 °C)
Densidade a granel 430 kg/m3
Solubilidade 4 g/l (20 °C)

Armazenagem Armazenar de +5°C a +30°C.

Especificações
Assay (alkalimetric, calculated on dried substance) = 99.0 %
Identity (IR-spectrum) passes test
Appearance white to almost white crystalline powder or colorless crystals
Appearance of solution (0.5?mol/l, hydrochloric acid 1?mol/l) clear and colorless
Spec. rotation (a 20/D, 50?g/l, hydrochloric acid 1 mol/l, calc. on dried substance) +25.3 to +26.3
UV-Absorption (260?nm, 0.5?mol/l, 1?cm, hydrochloric acid 1?mol/l) = 0.25
UV-Absorption (280?nm, 0.5?mol/l, 1?cm, hydrochloric acid 1?mol/l) = 0.20
Chloride (Cl) = 0.02 %
Sulphate (SO4) = 0.01 %
Heavy metals (as Pb) = 0.001 %
As (Arsenic) = 0.0005 %
Ca (Calcium) = 0.001 %
Co (Cobalt) = 0.0005 %
Fe (Iron) = 0.0005 %
K (Potassium) = 0.0005 %
Mg (Magnesium) = 0.0005 %
Na (Sodium) = 0.005 %
NH4 (Ammonium) = 0.01 %
Zn (Zinc) = 0.0005 %
Foreign amino acids = 0.3 %
Other ninhydrine positive substances = 0.1 %
Loss on drying (105 °C; 3?h) = 0.3 %