LPG (Propane / Butane)
Liquefied petroleum gas — domestic and industrial fuel, autogas, and a growing petrochemical cracker feedstock as LPG dehydrogenation and cracking capacity expands.
Chelora Chemicals supplies LPG in propane, butane and blended grades to fuel, autogas and petrochemical customers worldwide, with pressurised logistics and full documentation.
Product identity
- CAS Number
- 68476-85-7
- Composition
- Propane (C₃H₈) and/or Butane (C₄H₁₀) mixture
- Boiling point (components)
- -42 °C (propane), -1 °C (n-butane)
- Density (liquid)
- 0.50-0.58 g/cm³
- Grades
- Propane / Butane / blended ratios
- Vapour pressure
- Grade and temperature dependent
- UN Number
- UN 1075 / UN 1965*
- HS Code
- 2711 12 / 2711 13
* UN 1075 covers LPG generally; UN 1978 (propane) and UN 1011 (butane) apply where the shipment is a single pure component. Confirm exact classification with your regulatory affairs team.
What LPG is used for
LPG (Liquefied Petroleum Gas) is a colourless, odourless (odorised for safety before retail distribution), highly flammable gas that is liquefied under moderate pressure or refrigeration for transport and storage, consisting of propane, butane, or a blend of the two. It is recovered from both natural gas processing (NGLs) and refinery gas streams (from crude distillation, catalytic cracking and reforming).
LPG's traditional uses are as a domestic and industrial heating/cooking fuel and as autogas (vehicle fuel), valued for its portability as a pressurised liquid and clean combustion relative to other fossil fuels. Growing petrochemical use includes propane dehydrogenation (PDH) to propylene and as a steam-cracker feedstock alongside or instead of naphtha, particularly in regions with abundant, low-cost LPG supply.
Where it sits in the petrochemical value chain
- Natural Gas Processing / Refinery Gas the two source streams LPG is recovered from.
- LPG (this product) the fuel and feedstock for the applications below.
- Propylene (via PDH) a growing petrochemical outlet, especially for the propane component. See that page.
Handling character
LPG is a liquefied flammable gas requiring pressurised containment and strict ignition-source control. Full hazard detail is in the Safety section below.
| Parameter | Typical value |
|---|---|
| Appearance | Colourless liquefied gas (odorised for retail fuel use) |
| Composition | Propane / butane ratio as agreed |
| Vapour pressure | Grade and temperature dependent |
| Sulfur (odorant) content | Within fuel-grade or industrial-grade specification |
Important: the figures above are indicative of commercial material and are offered for planning only. The batch certificate of analysis is the governing document.
| Property | Value |
|---|---|
| Physical state | Liquefied gas under pressure or refrigeration |
| Boiling point (propane) | -42 °C |
| Boiling point (n-butane) | -1 °C |
| Density (liquid) | 0.50-0.58 g/cm³ |
| Vapour density (vs. air) | Heavier than air — can accumulate in low areas |
| Flammability | Highly flammable liquefied gas |
Physical constants compiled from public reference data for CAS 68476-85-7 and rounded for readability. Treat them as orientation, not as a specification.
Where our customers put LPG to work
From fuel and autogas to a rising feedstock role in propylene and olefins production.
Domestic & industrial fuel
Heating, cooking and industrial process fuel, valued for portability and clean combustion.
- Fuel-grade specification
- Pressurised bulk & cylinder supply
- Technical desk review on request
Autogas (vehicle fuel)
Used as an alternative vehicle fuel (autogas/LPG) in dedicated and dual-fuel vehicles.
- Autogas-grade specification
- Documented batch traceability
- Contract & spot supply
Propane dehydrogenation (PDH)
The propane component is dehydrogenated into propylene via the PDH process, a growing on-purpose route.
- PDH feed-grade specification
- Full analytical documentation available
- Retained sample held against the lot
Steam-cracker feedstock
Cracked into ethylene and propylene alongside or instead of naphtha, particularly where LPG is low-cost.
- Documented batch traceability
- Technical desk review on request
Aerosol propellant
The butane component is used as a propellant in aerosol product formulations.
- Research & process-scale quantities
- Full documentation supplied
Contract & scheduled supply
Fuel distributors and petrochemical plants running continuous consumption are supported with scheduled bulk delivery.
- Annual contracts with scheduled call-off
- Price held across the contract period
- Second source held in reserve
How we supply LPG (Propane / Butane)
Chelora Chemicals is a supplier and sourcing partner, not a manufacturer. Propane/butane ratio and vapour pressure are critical to both fuel performance and PDH/cracker feedstock suitability — that shapes how we manage this line.
We place your order with whichever qualified producer best matches your required grade, your price point and your delivery window, and confirm your jurisdiction's import requirements before booking.
We keep a second qualified source on this line, so a single-plant disruption never becomes your production problem.
- Propane/butane ratio confirmed before we quote. Consistency matters to both fuel performance and feedstock suitability.
- Pressurised logistics arranged throughout. LPG requires pressure-rated vessels, tanks and transfer equipment at every stage.
- Scheduled call-off scheduling. We hold contracted tonnage and release it against your consumption calendar.
- Batch traceability to the producing plant. Full chain of custody documentation on request.
- Export machinery handled in-house. Classification, approved packing, labelling, freight booking and customs paperwork are ours to manage.
- Fuel-grade and petrochemical feed-grade both sourced. Matched precisely to your end-use specification.
Packed the way your plant receives it
Pressurised cylinder, ISO tank or marine LPG carrier — tell us your preferred format and we will quote and classify to it.
Pressure-rated cylinders
Standard pressurised cylinders for smaller-volume and retail-adjacent orders.
Road/rail bulk shipment
Pressure-rated ISO tank for road or rail bulk shipment.
Large-volume bulk cargo
Pressurised or refrigerated marine LPG carrier for large-volume import/export shipments.
Incoterms to suit you
Quoted on the Incoterm your purchasing team works to, with documentation filed before booking.
Trial / sample quantities
Smaller trial parcels arranged for qualification before a term contract.
Contracted call-off supply
We hold contracted volume and release it against your consumption calendar.
Liquefied flammable gas — handle accordingly
LPG is a highly flammable liquefied gas, heavier than air, that can cause frostbite on contact with skin and accumulate in low-lying areas if released. The summary below is orientation only — the safety data sheet supplied with your specific batch is the authoritative document.
Classified hazards
H220Extremely flammable gas.H280Contains gas under pressure; may explode if heated.Frostbite noteContact with the liquefied gas can cause cold burns/frostbite.
Treat as a major fire and explosion hazard. LPG vapour is heavier than air and can travel to distant ignition sources; always read the SDS issued with your specific batch and follow pressure-vessel handling protocols strictly.
Storage
Store in pressure-rated vessels per local LPG storage codes, away from heat sources and with adequate separation distances from occupied buildings and ignition sources.
Handling
Use pressure-rated transfer equipment, flame-proof electrical fittings, and full PPE including cold-contact protection. Ensure adequate ventilation and gas-detection monitoring in enclosed transfer areas.
Transport
Shipped as UN 1075 (Petroleum gases, liquefied) or, for single-component shipments, UN 1978 (Propane) / UN 1011 (Butane). We confirm and document exact classification for your specific shipment and destination.
Every batch, documented
We verify documentation before dispatch so there are no surprises at your incoming-goods bench.
Specification agreed
Propane/butane ratio and vapour pressure confirmed against your fuel or process requirement before order placement.
Producer batch testing
The producing plant or terminal tests each batch against the agreed specification before release.
Documentation review
COA, SDS and transport paperwork checked by our desk before the shipment is booked.
Traceable dispatch
Each shipment is traceable to its producing source, with full chain-of-custody records on request.
How LPG is made
LPG is recovered from two main sources: natural gas processing, where propane and butane are separated from the NGL stream by fractionation, and refinery gas streams generated during crude distillation, catalytic cracking and catalytic reforming. The propane and butane components are blended to the ratio required for fuel, autogas or petrochemical feedstock use.
We do not publish operating process parameters here; this is background only. Full technical documentation accompanies every shipment, and any process-specific detail you need is best confirmed directly with our technical desk.
| Chemical family | Liquefied light paraffin gas mixture |
|---|---|
| Functional groups | None (saturated paraffins — propane and butane) |
| Reactivity | Combustion (fuel use); catalytic dehydrogenation (PDH to propylene); thermal cracking (olefins) |
| Related compounds | Propylene (PDH product), Isobutylene, 1-Butene (related C4 olefins) |
Explore the wider petrochemical range
LPG (Propane / Butane), answered
What is LPG used for?
How is LPG made?
Is LPG hazardous?
What grade do you supply?
What packing do you offer?
Do you manufacture this yourself?
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