Search

i. — general In Arabic, the word nafṭ (Persian nafṭ) is applied to the purest form ( ṣafwa ) of Mesopotamian bitumen ( ḳīr —or ḳār — bābilī ). Its natural colour is white. It occasionally occurs in a black form, but this can be rendered white by sublimation. Nafṭ is efficacious against cataract and leucoma; it has the property of attracting fire from a distance, without direct contact. Mixed with other products (fats, oil, sulphur etc.) which make it more combustible and more adhesive, it constituted the basic ingredient of “Greek fire”, a liquid incendiary compo…