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Phosphorus pentasulfide

Phosphorus pentasulfide
Phosphorus pentasulfide structure
Chemical Name:
Phosphorus pentasulfide
sulfurphosphide;Phosphorussulfid;sirnikfosforecny;Phosphoricsulfide;osphorus pentasulf;PHOSPHORUS SULFIDE;Phosphoric Sulphide;rcrawastenumberu189;Sulfur phosphide (R);Phosphoruspersulfide
Molecular Formula:
Formula Weight:
MOL File:

Phosphorus pentasulfide Properties

Melting point:
286 °C
Boiling point:
2.09 g/mL at 25 °C(lit.)
storage temp. 
Flammables area
Yellow to green
1 (10g/l, H2O, 20℃)
Water Solubility 
CAS DataBase Reference
1314-80-3(CAS DataBase Reference)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
  • NFPA
Hazard Codes  F,Xn,N
Risk Statements  11-20/22-29-50
Safety Statements  61
RIDADR  UN 1340 4.3/PG 2
WGK Germany  3
RTECS  TH4375000
Autoignition Temperature 142 °C
HazardClass  4.3
PackingGroup  II
HS Code  28139000
Hazardous Substances Data 1314-80-3(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 389 mg/kg LD50 dermal Rabbit 3160 mg/kg
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H228 Flammable solid Flammable solids Category 1
Category 2
P210, P240,P241, P280, P370+P378
H260 In contact with water releases flammable gases which may ignite spontaneously Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases Category 1 Danger P223, P231+P232, P280, P335+ P334,P370+P378, P402+P404, P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P223 Keep away from any possible contact with water, because of violent reaction and possible flash fire.
P273 Avoid release to the environment.
P231+P232 Handle under inert gas. Protect from moisture.
P370+P378 In case of fire: Use … for extinction.
P422 Store contents under …

NFPA 704

Diamond Hazard Value Description
2 2
Health   2 Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury (e.g. diethyl ether, ammonium phosphate, iodine)
Flammability   1 Materials that require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur. Includes some finely divided suspended solids that do not require heating before ignition can occur. Flash point at or above 93.3 °C (200 °F). (e.g. mineral oil, ammonia)
Instability   2 Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water (e.g. white phosphorus, potassium, sodium)

(NFPA, 2010)

Phosphorus pentasulfide price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.21024 di-Phosphorus pentasulfide for synthesis. CAS 1314-80-3, chemical formula P S ., for synthesis 1314-80-3 8210240100 $37.8 2018-11-23 Buy
Sigma-Aldrich 8.21024 di-Phosphorus pentasulfide for synthesis. CAS 1314-80-3, chemical formula P S ., for synthesis 1314-80-3 8210241000 $76.5 2018-11-23 Buy
Sigma-Aldrich 8.21024 di-Phosphorus pentasulfide for synthesis. CAS 1314-80-3, chemical formula P S ., for synthesis 1314-80-3 8210242500 $165 2018-11-23 Buy

Phosphorus pentasulfide Chemical Properties,Uses,Production

Chemical Properties

Yellow to greenish powder

Chemical Properties

Phosphorus pentasulfide is a greenish-gray to yellow, crystalline solid with an odor of rotten eggs. The Odor Threshold is 0.005 ppm


In manufacture of lube oil additives and pesticides. manufacture of safety matches, ignition Compounds, and for introducing sulfur into organic Compounds.


Phosphorus pentasulfide is used in the manufacture of lubricant additives, pesticides, safety matches, and flotation agents.

General Description

A greenish yellow solid with an odor of rotten eggs that may paralyze the sense of smell at hazardous concentrations in air. Density 2.04 g / cm3. Phosphorus pentasulfide is used for making lube oil additives, insecticides, flotation agents, safety matches, blown asphalt, and other products and chemicals.

Air & Water Reactions

Highly flammable. May heat and spontaneously ignite in presence of moisture [Haz. Chem. Data. 1969]. Reaction with water forms toxic hydrogen sulfide gas and phosphoric acid. Dangerous when wet.

Reactivity Profile

PHOSPHORUS PENTASULFIDE reacts vigorously with strong oxidants. Exothermically violent decomposition reaction with water, steam or acids to produce irritating fumes of phosphorus pentaoxide and highly toxic hydrogen sulfide gas. May ignite in contact with limited amounts of water [Haz. Chem. Data, 1975, p. 239]. Can be ignited by sparks or friction and its dust presents an explosion hazard in air at sufficient concentrations. Hydrogen sulfide gas evolved from reactions with water may also form explosive mixtures with air.

Health Hazard

Hydrogen sulfide gas formed by reaction with moisture can cause death by respiratory failure. The gas also irritates eyes and respiratory system. The solid irritates skin and eyes; the symptoms may be delayed several hours.

Health Hazard

Phosphorus pentasulfide is an irritant to the skin and eyes. Inhalation of its vapors can cause irritation of the respiratory passage. Oral toxicity of this compound in rats was found to be moderate.
LD50 value, oral (rats): 389 mg/kg (NIOSH 1986)
Phosphorus pentasulfide can readily produce highly toxic hydrogen sulfide in the presence of moisture. Other toxic products from its combustion are sulfur dioxide and phosphorus pentoxide (corrosive)..

Fire Hazard

Special Hazards of Combustion Products: Products of combustion include sulfur dioxide and phosphorus pentoxide, which are irritating, toxic and corrosive.

Safety Profile

A poison by ingestion. A severe eye and skin irritant. Readily liberates toxic hydrogen sulfide and phosphorus pentoxide and evolves heat on contact with moisture. Dangerous fire hazard in the form of dust when exposed to heat or flame. Spontaneous heating in the presence of moisture. Moderate explosion hazard in solid form by spontaneous chemical reaction. Reacts with water, steam, or acids to produce toxic and flammable vapors; can react vigorously with oxidizing materials. Incompatible with air, alcohols, water. To fight fire, use CO2snow, dry chemical, or sand. Used as an intermedate in manufacturing lubricant addltives, insecticides, and fertilizer agents. When heated to decomposition it emits highly toxic fumes of SO, and PO,. See also HYDROGEN SULFIDE.

Potential Exposure

Phosphorus pentasulfide is used as an intermediate in the manufacture of lubricant additives; insecticides, flotation agents; lubricating oil; ignition compounds; and matches. It is also used to introduce sulfur into rubber, and organic chemicals, such as pharmaceuticals.

First aid

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 2448 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.


UN1340 Phosphorus pentasulfate, free from yellow or white phosphorus, Hazard Class: 4.3; Labels: 4.3-Dangerous when wet material, 4.1-flammable solid.

Purification Methods

Purify P2S5 by extraction and crystallisation with CS2, using a Soxhlet extractor, and is heated in a CO2 atmosphere at 150o to remove solvent. It liberates H2S in moist air. HARMFUL VAPOURS. [Klements in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 568 1963.]


Flammable solid; dust may form explosive mixture with air. Contact with water forms phosphorus pentoxide and an explosive mixture of hydrogen sulfide with air. Phosphorus pentasulfide is incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, ammonia, strong acids, strong bases, alcohols. Reaction with water or moisture in the air releases heat, hydrogen sulfide (H2S), sulfur dioxide, and phosphoric acid. Pyrophoric hazard, may self-ignite in moist air.

Waste Disposal

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Decompose with water, forming phosphoric acid, sulfuric acid and hydrogen sulfide. Provisions must be made for scrubbing hydrogen sulfide emissions. The acids may then be neutralized and diluted slowly to solution of soda ash and slaked lime with stirring, then flush to sewer with large volumes of water.

Phosphorus pentasulfide Preparation Products And Raw materials

Raw materials

Preparation Products

Phosphorus pentasulfide Suppliers

Global( 119)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
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Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
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