The best replacement for nitrile is viton.

The best alternatives to nitrile are rated as following:
★★★★★  viton
★★★★  neoprene
★★★  latex gloves
★★★  latex
★★  vinyl gloves
★★  epdm
★★  buna
★  neoprene gloves
★  amine
★  fluorocarbon seals
  nbr
  buna n
  rubber gloves
  neoprene impeller
  pvc gloves
  cyanide
  vinyl exam gloves
  chloroprene

Your alternative for nitrile is not listed? Suggest!
Speaking about nitrile, one probably shouldn't forget about lialh4.

Other search terms related to nitrile and their ratings are:
★★★★★ lialh4
★★★★★ grignard
★★★★★ dibal
★★★★ grignard reagent
★★★ dibal-h
★★★ lah
★★ grignard mechanism
★ grignards
★ lda
hydroxylamine
You have in mind a companion for nitrile and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of nitrile in all years. Click on graph for more.
nitrile
viton
neoprene