Tetrahydrofuran ≥99.9% unstabilised, SPECTRONORM® for spectroscopy
84707.290
:
- Pack type:Glass bottle
- Pk:1 L
- Seq:5037
- Environmentally Preferable:
- Assay (GC):≥ 99,9 %
- Acidity:≤ 0,0002 meq/g
- Alkalinity:≤ 0,0002 meq/g
- Colouration:≤ 10 APHA
- Evaporation residue:≤ 2 ppm
- Water:≤ 100 ppm
- Absorbance (215 nm):≤ 0,52
- Absorbance (245 nm):≤ 0,30
- Absorbance (265 nm):≤ 0,10
- Absorbance (275 nm):≤ 0,05
- Absorbance (from 310 nm):≤ 0,01
- Transmittance (215 nm):≥ 30 %
- Transmittance (245 nm):≥ 50 %
- Transmittance (265 nm):≥ 80 %
- Transmittance (275 nm):≥ 90 %
- Transmittance (from 310 nm):≥ 98 %
- Fluorescence (as quinine) (254 nm):≤ 1,0 ppb
- Fluorescence (as quinine) (365 nm):≤ 1,0 ppb
: Butylene oxide, THF, Diethylene oxide
:
:72.11 g/mol
:203-726-8
:2056
:05-2114615188-48
:GHS02
:GHS08
:GHS07
:Ambient
:109-99-9
:C₄H₈O
:MFCD00005356
:66
:–108,5 °C
:0.888 g/cm³ (20 °C)
:–21.5 °C
:3 II
:12,09351
:Filtered through a 0.2 µm filter, packaged under nitrogen.