Benzene for UV, IR, HPLC, GPC, ACS

Benzene for UV, IR, HPLC, GPC, ACS
Content: 1000 MLT
Physical Description:
liquid
Quality Name: for UV, IR, HPLC, GPC, ACS
Specification: Minimum assay (G.C.): 99.8%
Density 20/4: 0.877-0.878

?maximum limit of impurities:
APHA colour: 10
Acidity: 0.0001 meq/g
Alkalinity: 0.0001 meq/g
Non-volatile matter: 0.0003 %
Darkened substances by H2SO4: passes test
Sulfur compounds (as CS2): 0.0003 %
Thiophene (C4H4S): 0.0001%
Water (H2O): 0.01 %
Suitability for IR spectrometry: passes test
Fluorescence at 365 nm (as quinine)? ppb
UV Spectrum (1cm cell; Ref.: water):
Transmittance at 278 (Cut off) nm: =10%
Transmittance at 280 nm: =25%
Transmittance at 285 nm: =70%
Transmittance at 290 nm: =80%
Transmittance at 300 nm: =90%
Transmittance at 320 nm: =95%
Transmittance at 340-450 nm: =98%
Data of interest in HPLC:
P' + 0,25 E: 3.6
Rohrschneider Polarity: 2.7
Eluotropic value e° (Al2O3): 0.32
Sol. H2O in solv. at 20°C: 0.058
For critical jobs, purge with nitrogen.:
Microfiltered product (0.2 µm) and bottled under nitrogen atmosphere.: