Phosphorus(V) sulfide
Phosphorus pentasulfide
CAS: 1314-80-3
Molecular Formula: PS5
Phosphorus(V) sulfide - Names and Identifiers
| Name | Phosphorus pentasulfide |
| Synonyms | sirnikfosforecny Phosphorussulfid rcrawastenumberu189 Sulfur phosphide (R) Phosphorus(V)sulfide Phosphoruspersulfide Phosphorus(V) sulfide Phosphorusper-sulfide phosphorussulfide(p2s5) Phosphorus pentasulfide dithiodiphosphoric acid Phosphorous Pentasulfide diphosphorus pentasulfide phosphoruspentasulfide,freefromyellowandwhitephosphorus tricyclo[3.3.1.1~3,7~]tetraphosphathiane 1,3,5,7-tetrasulfide |
| CAS | 1314-80-3 |
| EINECS | 215-242-4 |
| InChI | InChI=1/H4O5P2S2/c1-6(2,8)5-7(3,4)9/h(H2,1,2,8)(H2,3,4,9) |
| InChIKey | HWVAJUNEPOKXLF-UHFFFAOYSA-N |
Phosphorus(V) sulfide - Physico-chemical Properties
| Molecular Formula | PS5 |
| Molar Mass | 191.3 |
| Density | 2.09g/mLat 25°C(lit.) |
| Melting Point | 286 °C |
| Boling Point | 514°C |
| Water Solubility | reacts |
| Appearance | Powder |
| Color | Yellow to green |
| PH | 1 (10g/l, H2O, 20℃) |
| Storage Condition | Flammables area |
| Refractive Index | 1.805 |
| Physical and Chemical Properties | Characteristics of gray to yellow crystals, with similar odor of hydrogen sulfide. melting point 286~290 ℃ boiling point 514 ℃ relative density 2.03 soluble in sodium hydroxide solution and sodium thiophosphate formation. Slightly soluble in carbon disulfide, insoluble in cold water. |
| Use | Used in organic synthesis, pesticides, matches, medicine, rubber, ore flotation, lubricating oil and other industries |
Phosphorus(V) sulfide - Risk and Safety
| Risk Codes | R11 - Highly Flammable R20/22 - Harmful by inhalation and if swallowed. R29 - Contact with water liberates toxic gas R50 - Very Toxic to aquatic organisms |
| Safety Description | 61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 1340 4.3/PG 2 |
| WGK Germany | 3 |
| RTECS | TH4375000 |
| FLUKA BRAND F CODES | 13-21 |
| HS Code | 28139000 |
| Hazard Class | 4.3 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: 389 mg/kg LD50 dermal Rabbit 3160 mg/kg |
Phosphorus(V) sulfide - Upstream Downstream Industry
| Raw Materials | White phosphorus Sulfur(α) |
| Downstream Products | Diethyl chlorothiophosphate malathion phorate parathion Ethoprophos dimethoate Phoxim |
Phosphorus(V) sulfide - Nature
Open Data Verified Data
gray to yellow crystals, with a similar odor of hydrogen sulfide. The melting point was 286-290 °c. Boiling point 514 °c. The relative density was 2. 03. Dissolve in sodium hydroxide solution and generate sodium thiophosphate. Slightly soluble in carbon disulfide, insoluble in cold water, hot water is decomposed to generate phosphoric acid and hydrogen sulfide. It is prone to fire when exposed to flame or friction. Combustion produces phosphorus pentoxide and sulfur dioxide when heated to 300 °c in air. Oxygen-containing organic compounds can be converted to sulfur-containing compounds. Deliquescence. Toxic!
Last Update：2024-01-02 23:10:35
Phosphorus(V) sulfide - Preparation Method
Open Data Verified Data
Direct synthesis method: After melting yellow phosphorus and sulfur respectively, it is measured according to sulfur: phosphorus one (2.57~2.6) the mass ratio of t 1 is continuously added into the reaction tube maintaining a certain temperature, and most of the materials are continuously added into the reactor together with the unreacted materials during the reaction, so that the temperature in the reactor is maintained at about 300~400 ℃. After completion of the reaction, the reaction mixture was cooled to 300 ° C. By stirring in an intermediate tank, and then put into a roller-type tableting machine to prepare a finished phosphorus pentasulfide product.
Last Update：2022-01-01 11:02:35
Phosphorus(V) sulfide - Use
Open Data Verified Data
organic synthesis for the manufacture of a variety of sulfur or phosphorus containing compounds; For pesticides, the manufacture of highly efficient organophosphorus pesticides such as dimethoate, ethyl 1065 and their emulsifiers. It is also used as an additive for ore dressing and advanced lubricating oil, and is used in the manufacture of vitamin drugs and rubber vulcanization AIDS.
Last Update：2022-01-01 11:02:35
Phosphorus(V) sulfide - Safety
Open Data Verified Data
phosphorus pentasulfide dust irritates eyes and respiratory tract. This product is toxic, flammable, explosive, easy to fire due to vibration and impact. When the burning product is leached by water, an explosion occurs and hydrogen sulfide gas is released. The lower limit of the dust ignition concentration of this product is 57.3g/m3. In the operation area of the production site, the maximum allowable concentration of toxic substances in the air is: phosphine is 0.3 mg/m3; Phosphorus is 0.03 mg/ma; Hydrogen sulfide is 10mg/ma. This product is toxic. Immediately wash with plenty of soap and water when accidentally touching the skin; Immediately wash with plenty of water when splash into the eyes, and send the patient to the hospital for treatment at a severe speed. Production workers should wear work clothes and wear anti-virus masks and latex gloves. Production equipment should be closed, the workshop is well ventilated, after work should take a shower. Packed in plastic bag double-layer binding or heat-sealing sealing wide-mouth steel drum, each net weight 50kg, lOOkg, 200kg. It should be obvious on the package. Signs of "flammable items" and "fear of Humidity. It is a Class I flammable solid. Risk code: GB 4.3 class 43041. UN N0.1340 (without yellow phosphorus);IMDG code 4.1, P. I., category 1. Should be stored in a cool, ventilated, dry warehouse, storage temperature should not exceed 30 ℃. The storage site shall be fire-proof and moisture-proof, and shall not be stored and transported together with oxidant and flammable and explosive articles. During transportation, it shall be protected from rain and sun exposure, and shall not be impacted or inverted. When loading and unloading should be light to prevent packaging damage. When there is a fire, you can use dry sand, dry powder fire extinguishing or carbon dioxide fire extinguishing, and Disinfection of the personnel should wear a gas mask.
Last Update：2022-01-01 11:02:36
Phosphorus(V) sulfide - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| toxicity | phosphorus pentasulfide dust irritates eyes and respiratory tract. This product is toxic, flammable, explosive, easy to fire due to vibration and impact. When the burning product is leached by water, an explosion occurs and hydrogen sulfide gas is released. The lower limit of the dust ignition concentration of this product is 57.3g/m3. In the operation area of the production site, the maximum allowable concentration of toxic substances in the air is: phosphine is 0.3mg/m3; Phosphorus is 0.03 mg/3; Hydrogen sulfide is 10 mg/m3. This product is toxic. Immediately wash with plenty of soap and water when accidentally touching the skin; Immediately wash with plenty of water when splash into the eyes, and send the patient to the hospital for treatment at a severe speed. Production workers should wear work clothes and wear anti-virus masks and latex gloves. Production equipment should be closed, the workshop is well ventilated, after work should take a shower. |
| Application | phosphorus pentasulfide is an important raw material for Pesticide Synthesis, which reacts with alcohol to obtain an important phosphorus intermediate "Sulfide", can be further synthesized a variety of dithiophosphate pesticides, such as dimethoate, phorate, malathion, etc.; By "sulfide" chlorination, get another important phosphorus intermediate "Chloride", it can also synthesize a variety of phosphorothioate pesticides, such as fenitrates, phoxim, diazinon, etc. In addition, it can also be used as a non-ferrous metal ore dressing agent, advanced lubricating oil additives, etc., as well as for the manufacture of matches, medical Products and rubber vulcanization AIDS. organic synthesis for the manufacture of a variety of sulfur-containing or phosphorus-containing compounds; For pesticides, the manufacture of highly efficient organophosphorus pesticides such as dimethoate, ethyl 1065 and their emulsifiers. It is also used as an additive for ore dressing and advanced lubricating oil, and is used in the manufacture of vitamin drugs and rubber vulcanization AIDS. used in organic synthesis, pesticides, matches, medicine, rubber, ore flotation, lubricating oil and other industries. |
| production method | The yellow phosphorus and sulfur are respectively melted by direct synthesis method, and then measured according to sulfur: the mass ratio of phosphorus =(2.57~2.6):1 is continuously added into the reaction tube maintaining a certain temperature, and most of the materials are continuously added into the reactor together with the unreacted materials during the reaction, the temperature in the reactor was maintained at about 300-400 °c. After the reaction was completed, the reaction was cooled to 300 ° C. By stirring in the intermediate tank, and then put into a roller-type tableting machine to prepare a finished phosphorus pentasulfide product. Its P4 10s → 2P2S5 phosphorus pentasulfide is synthesized directly from yellow phosphorus and sulfur. P4, 10S → 2P2S5: After melting yellow phosphorus and sulfur respectively, they are added to the reactor in appropriate proportion, and reacted at a high temperature of about 400 ℃ under the protection of inert gas. After complete reaction, they are cooled and sliced, the finished phosphorus pentasulfide product can be obtained. |
| category | flammable solid |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 389 mg/kg |
| stimulation data | Skin-rabbits 500 mg/24 h moderate; eye-rabbit 20 mg/24 h moderate |
| explosive hazard characteristics | mixture with oxidant can be exploded; Shock, impact can be exploded |
| flammability hazard characteristics | in case of fire, high temperature, oxidant flammable; heat or water decomposition of toxic hydrogen sulfide gas and phosphoric acid |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from oxidants, acids and alkalis |
| extinguishing agent | water, dry sand, carbon dioxide, foam, 1211 extinguishing agent |
| Occupational Standard | TWA 1 mg/m3; Tel 3 mg/m3 |
| spontaneous combustion temperature | 142°C |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-threatening and health concentration | 250 mg/m3 |
Last Update：2024-04-10 22:29:15
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Raw Materials for Phosphorus(V) sulfide
Downstream Products for Phosphorus(V) sulfide