Karta charakterystyki technicznej

Nazwa produktu
L-Ascorbic acid BioUltra, ≥99.5% (RT)

Numer produktu
95209

Marka produktu
SIGMA

Numer CAS
50-81-7

Masa cząsteczkowa
176.12

Test

Charakterystyka techniczna

APPEARANCE (COLOR)Colorless
APPEARANCE (FORM)Powder or Crystals
REDOX TITRATION≥ 99.5 %
REDOXTITRATION (METHOD)Iodometric
SPECIFIC ROTATION (20/D)21.0 ± 0.5 Degrees
CONCENTRATIONC=10 IN WATER
LOSS ON DRYING≤ 0.05 %
SULFATED ASH≤ 0.05 %
CARBON CONTENT40.92 % (THEORY)
HYDROGEN CONTENT4.58 % (THEORY)
INFRARED SPECTRUMCONFORMS TO STRUCTURE
WAVELENGTH (1) (UV)242 - 246 nm
MOLAR ABSORBANCY INDEX (1)--
ASSAY (1) (UV)99 - 101 %
SOLVENT (UV)HCl 0.1M
METAL TRACE ANALYSIS (ICP)CORRESPONDS TO REQUIREMENTS
ALUMINIUM (ICP)≤ 5 mg/kg
BARIUM (ICP)≤ 5 mg/kg
BISMUTH (ICP)≤ 5 mg/kg
CALCIUM (ICP)≤ 10 mg/kg
CADMIUM (ICP)≤ 5 mg/kg
COBALT (ICP)≤ 5 mg/kg
CHROMIUM (ICP)≤ 5 mg/kg
COPPER (ICP)≤ 5 mg/kg
IRON (ICP)≤ 5 mg/kg
POTASSIUM (ICP)≤ 50 mg/kg
LITHIUM (ICP)≤ 5 mg/kg
MAGNESIUM (ICP)≤ 5 mg/kg
MANGANESE (ICP)≤ 5 mg/kg
MOLYBDENUM (ICP)≤ 5 mg/kg
SODIUM (ICP)≤ 50 mg/kg
NICKEL (ICP)≤ 5 mg/kg
LEAD (ICP)≤ 5 mg/kg
STRONTIUM (ICP)≤ 5 mg/kg
ZINC (ICP)≤ 5 mg/kg
ARSENIC TRACES (MHS-AAS)≤ 0.1 mg/kg
CHLORIDE (CL)≤ 50 mg/kg
SULFATE (SO4)≤ 20 mg/kg
SOLUBILITY (METHOD)5.284 G IN 30 ML H2O (1 M)
APPEARANCE (SOLUTION)CLEAR COLORLESS
PH (SOLUTION)1.0 - 2.5
RESIDUE (FILTER TEST)NO RESIDUE
UV - ABS. AT 260 NM--
UV - ABS. AT 280 NM--
CUT-OFF--
RECOMMENDED RETEST PERIOD42 MONTHS