IntroductionCategoryDetailsPhysical Properties– Chemical Formula: C₃H₈– Molecular Weight:
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| Category | Details |
|---|---|
| Physical Properties | – Chemical Formula: C₃H₈ |
| – Molecular Weight: 44.1 g/mol | |
| – Density (Gas): 1.882 kg/m³ (0°C, 1 atm); (Liquid): 580 kg/m³ (-42°C) | |
| – Boiling Point: -42.1°C (231.1 K) | |
| – Autoignition Temperature: 470°C (878°F) | |
| – Explosive Range: 2.1–9.5% volume in air | |
| Technical Specifications | – Purity: 95–99% (commercial grade); ≤0.1% H₂O/H₂S (high-purity) |
| – Pressure: 138 bar (20°C, liquid in cylinders); 8.5 bar (vapor at 25°C) | |
| – Cylinder Sizes: 10 kg, 35 kg, 100 kg (portable); 6.000–18.000 gallons (bulk storage) | |
| – Valve Types: POL (US), DIN 477 (EU), and ASME (industrial) | |
| – Flow Rate: 0.5–50 kg/h (adjustable via regulator) | |
| – Purity Analysis: GC-FID (Gas Chromatography with Flame Ionization Detector) | |
| Key Applications | – Residential/Commercial: BBQ grills, heating, and hot water systems |
| – Automotive: LPG (liquefied petroleum gas) vehicles | |
| – Industrial: Oxy-fuel cutting/welding, boiler fuel, and petrochemical feedstock | |
| – Refrigeration: Low-temperature applications (-45°C to -50°C) | |
| – Aerosol Propellant: Non-flammable formulations (with CO₂/N₂) | |
| Safety Data | – CAS No.: 74-98-6 |
| – UN Number: 1075 (liquefied) | |
| – NFPA 704: Health 1. Flammability 4. Reactivity 0 | |
| – Fire Risk: Extinguish with dry chemical/CO₂; avoid water spray (may freeze) | |
| – Leak Detection: Use hydrocarbon sniffer tools (avoid open flames) | |
| Storage & Handling | – Pressure Vessels: ASME-certified cylinders (≤15 years service life) |
| – Ventilation: Ensure ≥20 air changes/hour in enclosed storage areas | |
| – Temperature: Store below 40°C; avoid direct sunlight | |
| – Bulk Tanks: Buried or above-ground installations with corrosion protection | |
| Certifications | – ASTM D1835: LPG specifications (purity, odorization) |
| – ISO 9001: Quality management systems for production/distribution | |
| – OSHA 29 CFR 1910: Flammable liquids/gases regulations | |
| Environmental Impact | – Greenhouse Gas: GWP ≈20 (CO₂ equivalent over 20 years) |
| – Ozone Depletion: Zero (replaced CFCs in refrigeration) | |
| – Leak Mitigation: Vapor recovery systems for bulk storage | |
| Control de calidad | – Traceability: Lot-specific MSDS and gas chromatography reports |
| – Odorization: Ethyl mercaptan (0.1–1 ppm) for leak detection | |
| – Shelf Life: Indefinite if stored in sealed cylinders (pressure loss ≤1%/year) |
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