The best replacement for nacl is kcl.

The best alternatives to nacl are rated as following:
★★★★★  kcl
★★★  cacl2
★★  asm.js
★★  pnacl
★★  sea salt
★★  cacl
★  webgl
★  normal saline
★  nacl2
★  kcl water softener
★  cscl
  mgcl2
  na2co3
  kcl more soluble
  kcl solubility
  naocl
  nabr
  sucrose
  glucose have a lower freezing point
  lrs

Your alternative for nacl is not listed? Suggest!
Speaking about nacl, one probably shouldn't forget about agno3.

Other search terms related to nacl and their ratings are:
★★★★★ agno3
★★★★ h2o
★★★ agno3 reaction
★★★ h2so4
★★ silver nitrate
★ 5% dextrose
You have in mind a companion for nacl and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of nacl in all years. Click on graph for more.
nacl
kcl
cacl2