Hydrogen sulfide indicating pigments

摘要: Disclosed is a pigment that changes color upon exposure to hydrogen sulfide gas. The may be ground or otherwise reduced small particles and used in coatings, dyes, paints inks. Potential applications for inks include the production of warning indicators presence gas areas where such pose hazard. Warning decals printed with pigmented ink posted potential In gas, can display by causing change message. Objects also coated so if leak occurs from within nearby object, object provide leaked sulfide. Example painted objects any industrial process containing