Complete Product Details – Natural Gas (CAS 8006-14-2)
1. Basic Identification Information
CAS No.: 8006-14-2
Chemical Name: Natural Gas
Synonyms: Compressed Natural Gas (CNG), Liquefied Natural Gas (LNG), Pipeline Gas
EINECS No.: 232-343-9
MDL No.: MFCD00008279
Main Composition: Mixed light aliphatic hydrocarbons (Methane ≥85 vol%, Ethane ~10%, Propane, Butane, trace CO₂, N₂, H₂S)
Main Component Formula: CH₄ (Methane)
Main Component Molecular Weight: 16.04
UN Transport Number: UN 1971 (compressed natural gas); UN 1972 (liquefied natural gas)
HS Code: 27111100 (LNG) / 27112100 (CNG)
Hazard Classification: Class 2.1 Extremely Flammable Compressed/Liquefied Gas, Packing Group I
Chemical Category: Mixed light fossil hydrocarbon, clean primary energy & petrochemical feedstock
2. Physical & Chemical Properties
Appearance
- Ambient pressure: Colorless, nearly odorless gas; commercial gas blended with mercaptan odorant for leak detection (rotten egg smell)
- Cryogenic liquefied state (-162℃): Transparent colorless low-temperature liquid
Core Physical Constants
| Parameter | Standard Value |
| Melting Point (Methane) | -182.5 ℃ |
| Boiling Point (LNG boiling range) | -155 ~ -195 ℃ |
| Liquid Density (LNG, -162℃) | 0.415–0.45 g/cm³ |
| Vapor Density (Air=1) | 0.6–0.7, lighter than air, disperses upward |
| Closed Cup Flash Point | -188 ℃ |
| Autoignition Temperature | 575–640 ℃ |
| Explosion Limit in Air (V/V) | 5–15 %, narrow flammable range |
| Vapor Pressure (20℃ compressed gas) | Up to 250 bar for CNG |
| Solubility | Slightly soluble in water; miscible with light hydrocarbon solvents |
Key Chemical Characteristics
- Ultra-clean combustion: Complete combustion only generates CO₂ and water vapor, low carbon emission, low sulfur & particulate pollutants compared with coal and fuel oil.
- Main component methane has stable saturated alkane structure; only reacts violently under high temperature with strong oxidants (chlorine, liquid oxygen).
- Simple asphyxiant: High concentration displaces oxygen in confined space and causes suffocation; no systemic toxicity.
- Cryogenic LNG will cause severe frostbite upon direct skin contact due to ultra-low temperature.
- Trace hydrogen sulfide impurity is corrosive to pipelines and toxic; commercial grade desulfurized to ultra-low sulfur standard.
- Can be reformed under catalyst to produce synthesis gas (CO + H₂) for downstream chemical manufacturing.
3. Export Industrial Quality Specifications (Pipeline / LNG Premium Grade)
| Test Item | Standard Spec | Test Method |
| Methane Volume Content | ≥85.0 vol% | Gas Chromatography GC |
| C2-C4 Light Hydrocarbons (Ethane+Propane+Butane) | ≤14.0 vol% | GC |
| Carbon Dioxide (CO₂) | ≤2.0 vol% | GC |
| Nitrogen Inert Gas (N₂) | ≤1.0 vol% | GC |
| Total Sulfur (as H₂S) | ≤20 mg/m³ | Microcoulomb Sulfur Analysis |
| Hydrogen Sulfide Single Index | ≤6 mg/m³ | Lead Acetate Titration |
| Water Dew Point | ≤-10 ℃ at operating pressure | Dew Point Tester |
| Heating Value (Wobbe Index) | 34–46 MJ/m³ | Calorimeter |
| Appearance | Colorless transparent gas / cryogenic liquid, no free water droplets | Visual Inspection |
Two Main Commercial Forms
- CNG (Compressed Natural Gas): Pressurized to 200–250 bar in steel cylinders, for vehicle fuel and small industrial users
- LNG (Liquefied Natural Gas): Cooled to -162℃, volume reduced to 1/600 of gaseous state, for long-distance ocean bulk transport
4. Main Industrial Applications
4.1 Civil Clean Energy (Largest Consumption)
- Residential cooking, water heater, central heating gas for urban households
- Catering industry restaurant boiler, kitchen stove fuel, low emission alternative to diesel and coal gas
4.2 Transportation Vehicle Fuel
- CNG taxi, bus, logistics truck; LNG heavy-duty truck, ship fuel
- Low exhaust NOx and particulate matter, meets strict environmental emission standards
4.3 Industrial Heating & Power Generation
- Gas-fired power plant combined cycle power generation, high thermal efficiency
- Kiln fuel for glass, ceramic, food baking, metal forging, low pollution production line
4.4 Petrochemical Raw Material (High-Value Export Segment)
- Steam reforming to produce synthesis gas, core feedstock for ammonia fertilizer, methanol, hydrogen production
- Methane cracking to manufacture acetylene, carbon black, hydrogen peroxide intermediates
- Raw material for natural gas-based ethylene, propylene fine chemical synthesis
4.5 Cryogenic Industrial Auxiliary
- LNG cold energy recovery for air separation (liquid nitrogen, liquid oxygen production)
- Cryogenic cooling medium for food quick-freezing, low-temperature material treatment
5. Safety, Packaging, Storage & Transportation Regulations
GHS Hazard Classification
- Extremely Flammable Gas Category 1
- Gas Under Pressure; May explode if heated
- Simple Asphyxiant Hazard
Signal Word: Danger
Main Hazard Statements:
H220 Extremely flammable gas
H280 Contains gas under pressure; may explode if heated
H336 May cause drowsiness or dizziness (oxygen displacement)
Export Standard Packaging & Delivery
- CNG small batch: Seamless high-pressure steel cylinders (40L, 80L) with pressure relief valve and flame arrester
- LNG bulk ocean shipment: Insulated stainless steel cryogenic tank container / LNG carrier ship
- Pipeline direct supply for adjacent industrial chemical plants
Storage Requirements
- Independent Class A flammable gas tank yard, full explosion-proof electrical equipment, all tanks grounded for static elimination, ambient temperature ≤30℃, open well-ventilated layout.
- Strictly isolated from liquid oxygen, chlorine, oxidants, open flame and heat sources; confined underground storage prohibited.
- Equipped with natural gas concentration leak detector, CO₂ dry powder fire extinguishers; water mist only for cooling tank surface, cannot extinguish gas flame directly.
- LNG cryogenic tanks equipped with pressure relief and vaporization recovery system to prevent overpressure.
Sea & Land Transportation Rules
- CNG: UN 1971 Class 2.1 flammable compressed gas, PG I
- LNG: UN 1972 Class 2.1 flammable cryogenic liquefied gas, PG I
- All tank containers/cylinders must maintain anti-static grounding during transit; avoid collision, direct sunlight and high-temperature stacking.
- Strictly forbidden mixed loading with oxidants, toxic chemicals and edible raw materials in one container.
- Complete export clearance documents supplied: COA, MSDS, TDS, IMDG marine dangerous goods declaration, pressure vessel inspection certificate.
6. E-commerce Listing Copy (Direct Copy for Echemi / Alibaba)
Product Title
Natural Gas CNG LNG CAS 8006-14-2 High Purity Methane Mixture Clean Fuel for Power Generation Vehicle Gas Methanol Ammonia Petrochemical Feedstock
Short Description
Natural Gas (CAS 8006-14-2) premium desulfurized mixed methane light hydrocarbon gas, supplied as compressed CNG or cryogenic liquefied LNG. Widely used as clean energy for civil heating, gas power plant, LNG truck fuel and core feedstock for methanol, synthetic ammonia and hydrogen manufacturing. Full set of dangerous goods export documents including COA, MSDS and TDS available for global bulk shipment.
Full Listing Description
Natural Gas with CAS registry number 8006-14-2 is a naturally occurring mixed low-molecular-weight hydrocarbon mixture dominated by methane ≥85 vol%, extracted from underground gas reservoirs and refined via desulfurization, dehydration and impurity removal to meet international export industrial standards. We provide two mainstream supply forms: 250 bar compressed CNG and -162℃ insulated liquefied LNG for long-distance ocean transport.
This product covers two core industrial sectors: clean low-carbon energy for residential catering, gas power generation and new energy vehicle fuel; petrochemical raw material for synthesis gas, methanol, ammonia fertilizer and carbon black production. Strictly controlled sulfur, CO₂ and water dew point impurities ensure stable combustion and long service life of downstream pipeline & synthesis equipment.
Flexible delivery modes include high-pressure steel cylinders, cryogenic insulated tank containers and professional LNG carrier bulk shipping for full container orders. Classified as UN1971 / UN1972 Class 2.1 extremely flammable dangerous goods, we provide complete official customs clearance and pressure vessel certification documents to support global sea and land transportation with stable long-term supply capacity.
7. Printable Export Certificate of Analysis Template
CERTIFICATE OF ANALYSIS
Product Name: Premium Grade Natural Gas (LNG / CNG)
CAS No.: 8006-14-2
Executive Standard: International Pipeline Natural Gas Export Standard
Batch No.
Delivery Form: Cryogenic LNG Tank / CNG Cylinder
Manufacture Date:
| Test Item | Standard Spec | Test Result | Test Method |
| Methane Volume Fraction | ≥85.0 vol% |
| GC Gas Chromatography |
| C2-C4 Light Hydrocarbons | ≤14.0 vol% |
| GC |
| Carbon Dioxide (CO₂) | ≤2.0 vol% |
| GC |
| Nitrogen Impurity | ≤1.0 vol% |
| GC |
| Total Sulfur Content | ≤20 mg/m³ |
| Microcoulomb Sulfur Analysis |
| Hydrogen Sulfide (H₂S) | ≤6 mg/m³ |
| Lead Acetate Titration |
| Water Dew Point | ≤-10 ℃ |
| Dew Point Tester |
| Appearance | Colorless transparent gas / cryogenic liquid without free water | Visual Inspection |
|
Conclusion: This batch complies with international premium export standard of Natural Gas.
TDS
