- Tetraphosphorus trisulfide
A yellow crystalline solid.
Used in making matches & friction strips for safety-match boxes.
Registry Numbers and Inventories.
EC Index Number
Highly flammable; Harmful; Dangerous for the Environment
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
2.03 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Protect against physical damage. Store in cool, ventilated place. Separate from other materials.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
In fire condition wear self-contained breathing apparatus.
Wear positive pressure self-contained breathing apparatus (SCBA).
Do not use water. Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Keep material dry.
Stable in air.
Dangerous when heated to decomposition, emits highly toxic fumes of phosphorus oxides and sulfur oxides.
Do not use water. Use dry chemical or carbon dioxide. When fire is out, cover all suspected material with dry sand or earth to prevent re-ignition until material can be permanently disposed of.
Produce flammable and toxic gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard.
Burning produces toxic sulfur dioxide.
Fever in the absence of infectious complications may be seen (rubitsky & myerson, 1949; blumenthal & lesser, 1938). Abnormally low blood pressure and rapid heart rate may develop in severe cases. Hepatic encephalopathy, usually occurring in the third stage of poisoning, may include symptoms of headache, seizures, confusion, delirium and coma. Headache, malaise, restlessness, irritability, drowsiness, lethargy, weakness, delirium, psychosis, stupor, seizures, and coma have been reported. Phosphorus has been shown to cross the placental barrier, but cases of human fetal poisoning have not been reported.
Nausea, vomiting, abdominal pain, diarrhea, hematemesis, and smoking and luminescence of vomitus and feces may occur.
Oral exposure may cause tachypnea, shallow respirations, hyperventilation. Laryngospasm causing dyspnea and/or apnea may also result.
May cause burns.
The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
Prompt removal of all clothing, including jewelry, and copious irrigation with water should occur as soon as possible. Immerse exposed areas in water or cover with wet dressings at all times.
Continuously irrigate with copious amounts of tepid water for at least 15 minutes. Keep exposed eyes covered with wet compresses. The patient should be referred for evaluation at a health care facility and formal ophthalmologic examination.
Std. Transport #