Phosphorus Pentasulphide (CAS No. 1314-80-3)
Discover high-purity Phosphorus Pentasulphide (CAS No. 1314-80-3), a versatile chemical compound essential for industrial applications. Known for its sulfur-rich composition, this yellow crystalline solid plays a critical role in manufacturing lubricants, pesticides, and specialty chemicals. Sourced from reliable production processes, our Phosphorus Pentasulphide ensures consistent quality and performance for your needs.
Product Overview
Phosphorus Pentasulphide, with the chemical formula P₄S₁₀ (also represented as P₂S₅), is a reactive inorganic compound valued for its ability to introduce phosphorus and sulfur functionalities into various materials. It appears as a greenish-yellow to yellow solid with a distinctive rotten egg odor, making it identifiable in laboratory and industrial settings.
Key Features
- High Reactivity: Efficiently reacts to form organophosphorus and organosulfur compounds.
- Purity Levels: Available in grades up to 99% purity, suitable for both research and bulk industrial use.
- Stable Packaging: Supplied in moisture-resistant containers to prevent hydrolysis.
Physical and Chemical Properties
| Property | Value/Description |
|---|---|
| CAS Number | 1314-80-3 |
| Molecular Formula | P₄S₁₀ |
| Molecular Weight | 444.50 g/mol |
| Appearance | Yellow to greenish-yellow crystalline solid |
| Odor | Rotten eggs (due to hydrogen sulfide traces) |
| Density | 2.04 g/cm³ |
| Melting Point | 288–310°C (decomposes) |
| Boiling Point | Sublimes above 407°C |
| Solubility | Insoluble in water; soluble in carbon disulfide and benzene |
| Reactivity | Reacts violently with water to release phosphine (PH₃) and hydrogen sulfide (H₂S) |
These properties make Phosphorus Pentasulphide a foundational material in sulfur-phosphorus chemistry, enabling precise control in synthesis reactions.
Applications and Uses
Phosphorus Pentasulphide is widely utilized across industries for its multifunctional capabilities:
- Lubricant Additives: Enhances extreme pressure performance in oils and greases by forming protective sulfur-phosphorus films.
- Insecticides and Pesticides: Serves as a key intermediate in the production of organophosphate-based crop protection agents.
- Flotation Agents: Improves mineral separation in mining through selective surface modification.
- Safety Matches and Pyrotechnics: Acts as a friction-sensitive igniter in match heads.
- Asphalt Modification: Used in blown asphalt production to improve durability and weather resistance.
- Organic Synthesis: Essential for creating thioamides, thiophosphates, and other sulfur-containing organics in pharmaceutical and agrochemical R&D.
Its versatility supports scalable production, from small-batch lab experiments to large-scale manufacturing.
Safety and Handling Guidelines
Prioritize safety when working with Phosphorus Pentasulphide due to its reactivity and toxicity profile:
- Hazards: Flammable solid that may form combustible dust. Harmful if inhaled, swallowed, or absorbed through skin. Reacts violently with water, acids, or oxidizing agents, releasing toxic gases like H₂S and PH₃. Very toxic to aquatic life with long-lasting effects.
- Personal Protective Equipment (PPE): Wear chemical-resistant gloves, safety goggles, and a respirator in well-ventilated areas. Use flame-retardant clothing.
- Storage: Keep in a cool, dry place away from moisture, heat, and incompatibles like water or strong oxidizers. Store under inert atmosphere if possible.
- First Aid: For inhalation, move to fresh air; for skin contact, wash with soap and water; seek medical attention immediately.
- Spill Response: Evacuate area, ventilate, and neutralize with dry soda ash before disposal as hazardous waste.
Always consult material safety data sheets (MSDS) and local regulations for site-specific protocols. Proper handling minimizes risks while maximizing efficiency.
Frequently Asked Questions (FAQs)
What is Phosphorus Pentasulphide used for?
Phosphorus Pentasulphide (CAS 1314-80-3) is primarily used as a reagent in the synthesis of lubricant additives, insecticides, flotation agents, and safety matches. It excels in introducing phosphorus-sulfur bonds in organic molecules.
Is Phosphorus Pentasulphide soluble in water?
No, it is insoluble in water and reacts violently upon contact, producing toxic phosphine and hydrogen sulfide gases. It dissolves well in non-polar solvents like carbon disulfide.
How should I store Phosphorus Pentasulphide to maintain its quality?
Store in airtight, moisture-proof containers in a cool, dry environment below 25°C. Avoid exposure to air or water to prevent degradation or spontaneous ignition.
What are the health risks associated with Phosphorus Pentasulphide exposure?
Exposure can cause respiratory irritation, nausea, dizziness, and severe gastrointestinal distress if ingested. Chronic effects may include phosphorus poisoning. Use PPE and ensure proper ventilation.
Can Phosphorus Pentasulphide be shipped internationally?
Yes, it can be shipped under UN 1340 classification as a flammable solid. Compliance with IATA, IMDG, and DOT regulations is required, including proper labeling and documentation.
What purity levels are available for Phosphorus Pentasulphide?
We offer 98%+ technical grade for industrial use and 99%+ for analytical applications, with customizable specifications upon request.
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