Maybe someone will be able to find it for you in Latin, but this is a translation from
The Roman Ritual:
P: Our help is in the name of the Lord.
All: Who made heaven and earth.
God's creature, salt, I cast out
the demon from you by the living + God, by the true + God, by the
holy + God, by God who ordered you to be thrown into the water-
spring by Eliseus to heal it of its barrenness. May you be a
purified salt, a means of health for those who believe, a
medicine for body and soul for all who make use of you. May all
evil fancies of the foul fiend, his malice and cunning, be driven
afar from the place where you are sprinkled. And let every
unclean spirit be repulsed by Him who is coming to judge both the
living and the dead and the world by fire.
All: Amen.
Let us pray.
Almighty everlasting God, we humbly appeal to your mercy and
goodness to graciously bless + this creature, salt, which you
have given for mankind's use. May all who use it find in it a
remedy for body and mind. And may everything that it touches or
sprinkles be freed from uncleanness and any influence of the evil
spirit; through Christ our Lord.
All: Amen.