Hydrogen Sulfide Mixture, Flammable, Toxic

SECTION 2: Hazards identification

Physical state Gas. Odor : Odour of rotten eggs. Hydrogen Sulfide deadens the sense of smell. Rotten eggs. Emergency overview DANGER! Toxic, flammable, high pressure gas. May be fatal if inhaled. May form explosive mixture with air. Symptoms may be delayed. Self-contained breathing apparatus may be required by rescue workers. Contains gas under pressure. In a fire or if heated, a pressure increase will occur and the container may burst or explode. Harmful by inhalation. Do not puncture or incinerate container. Do not breathe gas. Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Keep container tightly closed and sealed until ready for use.

Principle Routes of Exposure

Absorbed through skin. Eye contact. Inhalation

Potential Acute Health Effects

Inhalation May be fatal if inhailed; causes respiratory paralysis by depression of central nervous system activity. Effects of overexposure include headache, dizziness,vertigo, giddiness, confusion, chest pains, olfactory fatique, unconsciousness and death. Rhinitis, pharyngitis, bronchitis pneumontitis, pulmonary edema and cyanosis may occur. Lack of oxygen can kill. This gas may also act as an asphyxiant. Ingestion An unlikely route of exposure. This product is a gas at normal temperature and pressure.May cause burns of the mouth, oesophagus and stomach. Skin Contact with rapidly expanding gas may cause burns or frostbite. Eyes Causes irritation seen as excess redness of conjunctiva. Prolonged exposure to vapour to low concentrations may cause painful conjunctivitis, blurred vision, excess tearing, photophobia and the perception of halos around lights. Severe overexposure can lead to conjunctivitis and corneal injury with vesiculation of the corneal epithelium.

Potential chronic health

effects : Repeated exposure may cause nausea, vomiting, weight loss, persistent low blood pressure, and loss of sense of smell. Carcinogenicity : Classified A4 (Not classifiable for human or animal), by ACGIH, 3 (Not classifiable for hum), by IARC [Ethylene]. Classified A4 (Not classifiable for human or animal), by ACGIH, 3 (Not classifiable for hum), by IARC [Propylene]. Mutagenicity : No known significant effects or critical hazards.

Teratogenic Effects

No known significant effects or critical hazards. Developmental effects : No known significant effects or critical hazards. Fertility effects : No known significant effects or critical hazards. Target organs : Contains material which may cause damage to the following organs: lungs, the nervous system, liver, heart, upper respiratory tract, eyes, central nervous system (CNS), muscle tissue. Over-exposure signs/symptoms Inhalation : No specific data. Ingestion : No specific data. Skin : No specific data. Eyes : No specific data. Medical conditions Breathing of vapour (and/or mist) may aggravate asthma and inflammatory or fibrotic aggravated by over- pulmonary disease. exposure See toxicological information (section 11)