1995-08-11_REVISION - M1977493 (8)

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PEVT�SL%c IDE HEALTH EFFECTS SU10jARY . �.e.. The following information presents both human experience and the results of scientific experiments used by qualified experts to assess the effects of Phosphorus Pentasulfide on the health of industrially exposed individuals and to support the Precautionary Statements and Occupational Control Procedures recommended in this document. To avoid misunderstanding, the data provided in this section should be interpreted by individuals trained in evaluation of this type of information. Human Experience Dermal contact and inhalation are expected to be the primary routes of occupational exposure to Phosphorus Peatasulfide. Phosphorus Pencasulfide is considered to be corrosive to eyes and skin. On contact with water or atmospheric moisture, Phosphorus Pentasulfide decomposed to Hydrogen Sulfide gas and Phosphoric Acid, both of which may be irritating to the eyes and respiratory tract. Phosphpric Acid is also corrosive to eyes and skin. Exposure to Hydrogen Sulfide has been reported to produce cough, headache, fatigue, irritability, insomnia, gastrointestinal disturbances and eye and respiratory tract irritation with pain, lacrimation, photoohobia, blurred vision and keratoconjunctivitis. Alterations of conciousness , coma, bronchopneumonia, pulmonary edema, respiratory arrest and convulsions have been reported at higher concentrations. Rapid olfactory fatigue to the rotten—egg odor of Hydrogen Sulfide occurs at elevated atmospheric levels. The irritation • and tissue damage resulting from contact with Phosphorus Pencasulfide is considered to result, in part, from the Hydrogen Sulfide and Phosphoric acid decomposition products. Due to the potential for Phosphorus Pencasulfide to produce respiratory tract irritation, workers with pulmonary diseases or with compromised pui�onar-7 function should have limited exposure to this material. Toxicolo ical Data Data from Moasanto studies indicate the following: Oral LD50 (Rat) ; Eye Irritation (R-'-,hit) ; 186 ��g' Moderately Toxic obit (FHSA) Corrosive Skin Irritation (: (FHSA) Corrosive Additional Information Threshold Limit Values (TLV�&) have been established by the American Conference of Governmental Industrial Hygienists for Phosphorus Pentasulfide and for its decomposition products Hydrogen Sulfide and Phosphoric Acid. For further information on these materials, please refer to the current edition of the Documentation of Threshold Limit Values.