描述
Identification
C2H5NO2
M = 75,07 g/mol
CAS [56-40-6]
EC number: 200-272-2
Taric code: 2922 49 85
Synonyms
Aminoacetic acid, Glycocoll
Applications
analytical chemistry, in buffer solutions (for electrophoresis), for pharmaceuticals synthesizing, in food industry.
Specifications
assay (titration with HClO4)………………………… min. 99,7 %
identity (IR-spectrum)………………………………… passes test
insoluble in water………………………………………. max. 0,003 %
pH (5 %, H2O)…………………………………… 5,9 – 6,3
chlorides (Cl)……………………………………………. max. 0,003 %
sulfates (SO4)…………………………………………. max. 0,0025 %
ammonium (NH4)……………………………….. max. 0,005 %
copper (Cu)……………………………………………… max. 1 ppm
heavy metals (as Pb)…………………………………. max. 0,001 %
iron (Fe)…………………………………………………….. max. 1 ppm
lead (Pb)……………………………………………………. max. 1 ppm
hydrolyzable substances………………………………. passes test
other ninhydrin positive
substances (as glycine)……………………………….. max. 0,1 %
other aminoacids…………………………………………. max. 0,1 %
substances darkened by H2SO4…………………….. passes test
residue on ignition (600 ºC)………………………….. max. 0,05 %
water (K.F.)………………………………………………… max. 0,1 %
Physical data
• Appearance: crystals, bright white
• Spec. Density: 1,595 g/cm3
• Bulk density: ~ 920 kg/m3
• Solub. in water: (20 ºC): 225 g/l
• Melting point: 232 – 236 ºC (decomposes)
• pH(50 g/l H2O, 20 ºC) 5,9 – 6,4
Toxicological data
• LD 50 (oral, rat): 7930 mg/kg
• WGK: 0
• Poison class CH (Swiss): F
Transport/storage
• Store between 15ºC and 25ºC
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