Tetrahydrofuran for Spectroscopy 500mL

Description

Catalogue Number	108110
Synonyms	THF, Tetramethylene oxide, Oxolane, Butylene oxide
Overview	Accurate analytic results in UV/VIS and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol®  solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol®  solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified. Furthermore the transmittance is specified in accordance with Reag. Ph Eur and ACS.

Product Information

CAS number	109-99-9
EC index number	603-025-00-0
EC number	203-726-8
Hill Formula	C₄H₈O
Molar Mass	72.11 g/mol
HS Code	2932 11 00

Applications

Application

Tetrahydrofuran for spectroscopy Uvasol®. CAS 109-99-9, pH 7 - 8 (200 g/l, H₂O, 20 °C).

Physicochemical Information

Boiling point	65 - 66 °C (1013 hPa)
Density	0.89 g/cm3 (20 °C)
Explosion limit	1.5 - 12.4 %(V)
Flash point	-20 °C
Ignition temperature	215 °C
Melting Point	-108.5 °C
pH value	7 - 8 (200 g/l, H₂O, 20 °C)
Vapor pressure	173 hPa (20 °C)

Storage and Shipping Information

Storage

Store at +5°C to +30°C.

Specifications

Purity (GC)	≥ 99.9 %
Evaporation residue	≤ 0.0002 %
Water	≤ 0.01 %
Colour	≤ 10 Hazen
Acidity	≤ 0.0002 meq/g
Alkalinity	≤ 0.0002 meq/g
Fluorescence (as quinine at 254 nm)	≤ 1.0 ppb
Fluorescence (as quinine at 365 nm)	≤ 1.0 ppb
Transmission (at 215 nm)	≥ 30 %
Transmission (at 245 nm)	≥ 50 %
Transmission (at 265 nm)	≥ 80 %
Transmission (at 275 nm)	≥ 90 %
Transmission (from 310 nm)	≥ 98 %
Absorbance (at 215 nm)	≤ 0.52
Absorbance (at 245 nm)	≤ 0.30
Absorbance (at 265 nm)	≤ 0.10
Absorbance (at 275 nm)	≤ 0.05
Absorbance (from 310 nm)	≤ 0.01