'Sulphur' in the Bible

And this is how I saw the horses and their riders in my vision: the riders had breastplates [the color] of fire and of hyacinth (sapphire blue) and of brimstone (yellow); and the heads of the horses looked like the heads of lions; and from out of their mouths came fire and smoke and brimstone (burning sulfur).

A third of mankind was killed by these three plagues—by the fire and the smoke and the brimstone that came from the mouths of the horses.

he himself also will drink of the wine of the anger of God that has been mixed full strength in the cup of his wrath, and will be tortured with fire and sulphur in the presence of the holy angels and in the presence of the Lamb.

And the beast was seized, and with him the false prophet who performed the signs before him, by which he deceived those who received the mark of the beast and those who had worshiped his image. The two were thrown alive into the lake of fire that burns with sulphur.

And the devil who deceived them was thrown into the lake of fire and sulphur, where the beast and the false prophet also [are], and they will be tormented day and night {forever and ever}.

But [as] for the cowards and unbelievers and detestable persons and murderers and sexually immoral people and sorcerers and idolaters and all liars, their share [is] in the lake that burns with fire and sulphur, which is the second death.