| Identification | Back Directory | [Name]
PHOSPHORUS SESQUISULFIDE | [CAS]
1314-85-8 | [Synonyms]
P4-S3
Phosphorus(Ⅲ)sulfide
Phosphorussesquisulfid
phosphorussulfide[p4s3]
trisulfuratedphosphorus
Trisulfurated phosphorus
sesquisulfuredephosphore
PHOSPHORUS SESQUISULFIDE
phosphoroussesquisulfide
Phosphorus (iii) sulfide
Phosphorous sesquisulfide
PHOSPHOROUSSESQUISULPHIDE
Tetraphosphorus trisulfide
phosphorus(iii)sulfide(iv)
Sesquisulfure de phosphore
Phosphorus-sesquisulphide-
tetraphosphorustrisulphide
phosphoroussesquisulfide[qr]
phosphorus(iii)sulfide(iv)[qr]
sesquisulfuredephosphore[french][qr]
tetraphosphorus trisulphide phosphorus sesquisulphid
Phosphorus trisulfide, Tetraphosphorus trisulfide
3,5,7-trithia-1,2,4,6-tetraphosphatricyclo[2.2.1.02,6]heptane | [EINECS(EC#)]
215-245-0 | [Molecular Formula]
P4S3 | [MDL Number]
MFCD00043090 | [MOL File]
1314-85-8.mol | [Molecular Weight]
220.09 |
| Hazard Information | Back Directory | [Uses]
In match tips. | [General Description]
A yellow crystalline solid. Easily ignited by friction. Forms sulfur dioxide and phosphorus pentaoxide during combustion. Reacts with water to form phosphoric acid, a corrosive material. Used to make matches and in the manufacture of other chemicals. | [Air & Water Reactions]
Highly flammable.Slowly decomposed by water to form phosphoric acid and toxic hydrogen sulfide gas (H2S). May ignite on contact with water or moist air. | [Reactivity Profile]
PHOSPHORUS SESQUISULFIDE is a reducing agent. | [Health Hazard]
Highly toxic: contact with water produces toxic gas, may be fatal if inhaled. Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution. | [Fire Hazard]
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. Containers may explode when heated. Runoff may create fire or explosion hazard. | [Chemical Properties]
Yellowish-green crystals; melts at 172°C (341°F); boils at 407–408°C (764–766°F);density 2.03 at 20°C (68 °F); soluble in carbon disulfide, benzene, and toluene, reacts with water.. | [Flammability and Explosibility]
Flammable | [Synthesis]
Phosphorus trisulfide can be synthesized either by Stock's method
(I), which involves fusing red P and S and carefully purifying the
crude product by recrystallization from CS3, followed by a second
recrystallization from benzene, or according to German patent
309,618 (F. C. Frary), which uses white P in a high-melting
inert solvent (II).
4 P + 3 S = P4S3
| [Purification Methods]
Extract P4S3with CS2, filter it and evaporate it to dryness. Alternatively place it in H2O, and pass steam through it for an hour. The H2O is then removed, the solid is dried, and recrystallised from CS2 [Rogers & Gross J Am Chem Soc 74 5294 1952]. | [Waste Disposal]
An alkaline solution is treated with laundry bleach, allowed to stand overnight, neutralized, and washed down the drain with plenty of water. |
| Safety Data | Back Directory | [Hazard Codes ]
F,Xn,N | [Risk Statements ]
11-22-50 | [Safety Statements ]
7-16-24/25-61 | [RIDADR ]
1341 | [RTECS ]
TH4330000 | [HazardClass ]
4.1 | [PackingGroup ]
II | [Safety Profile]
Poison by ingestion.
Flammable by spontaneous ignition. When
heated to decomposition it emits very toxic
fumes of POx and SOx. See also SULFIDES
and PHOSPHORUS. | [Hazardous Substances Data]
1314-85-8(Hazardous Substances Data) | [Toxicity]
rabbit,LDLo,oral,95mg/kg (95mg/kg),BEHAVIORAL: FOOD INTAKE (ANIMAL)KIDNEY, URETER, AND BLADDER: OTHER CHANGES IN URINE COMPOSITIONKIDNEY, URETER, AND BLADDER: CHANGES IN BOTH TUBULES AND GLOMERULI,Skandinavisches Archiv fuer Physiologie. Vol. 15, Pg. 259, 1904. |
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