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442249 Supelco

1,4-Difluorobenzene

analytical standard

  • CAS Number 540-36-3

  • Empirical Formula (Hill Notation) C6H4F2

  • Molecular Weight 114.09

  •  Beilstein/REAXYS Number 1904541

  •  EC Number 208-742-9

  •  MDL number MFCD00000344

  •  PubChem Substance ID 24867755

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Properties

Related Categories Additional Standards, Alpha Sort, Analytical Standards, Analytical/Chromatography, Chemical Class,
grade   analytical standard
InChI Key   QUGUFLJIAFISSW-UHFFFAOYSA-N
form   neat
packaging   ampule of 1000 mg
application(s)   HPLC: suitable
  gas chromatography (GC): suitable
refractive index   n20/D 1.441 (lit.)
bp   88-89 °C(lit.)
mp   −13 °C (lit.)
density   1.11 g/mL at 25 °C (lit.)
Featured Industry   Environmental
format   neat
storage temp.   room temp

Description

Application

1,4-Difluorobenzene has been used as a dopant, in order to ionize the soluble organic species present in huolinguole lignite coal by using atmospheric pressure photoionization technique coupled with mass spectrometry (APPI-MS). It also plays role of an internal standard in investigating the 19F nuclear magnetic resonance (NMR) spectrum of electrophilic trifluoromethyl thiolating agents prepared from nucleophilic tetramethylammonium trifluoromethyl thiolate.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Safety & Documentation

Safety Information

Symbol 
GHS02  GHS02
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 1993BF 3 / PGII
WGK Germany 
3
RTECS 
CZ5658000
Flash Point(F) 
35.6 °F
Flash Point(C) 
2 °C

Documents

Certificate of Analysis

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Protocols & Articles

Articles

US EPA Method OLM04.2 VOA: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap, Fast GC Analysis

From our library of Articles, Sigma-Aldrich presents US EPA Method OLM04.2 VOA: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap, Fast GC Analysis
Keywords: Chromatography, Environmental, Gas chromatography, Purification, Solid phase microextractions

US EPA Method OLM04.2 VOA: GC Analysis of Volatiles on VOCOL® after Purge & Trap using "K" Trap, Fast GC Analysis

From our library of Articles, Sigma-Aldrich presents US EPA Method OLM04.2 VOA: GC Analysis of Volatiles on VOCOL® after Purge & Trap using "K" Trap, Fast GC Analysis
Keywords: Chromatography, Environmental, Gas chromatography, Purification, Solid phase microextractions

Peer-Reviewed Papers
15

References

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