Your Professional Bulk Materials Manufacturer!
Heze Dongjian Chemical Co., Ltd. is a leading technology enterprise specializing in specialty gases and refrigerants, integrating R&D, production, storage, packaging, transportation, sales and technical services. Its business covers the entire industrial chain of hazardous chemicals. With advanced production technology, strict quality management systems, and scalable manufacturing capability, we are committed to providing stable quality products and reliable bulk supply solutions for global distributors, brand owners, contract manufacturers, and formulation companies.
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![Pure Ethylene]()
Pure EthylenePure Ethylene is the simplest alkene and one of the most important organic chemicals globally, serving as the fundamental building block for a vast array of petrochemical products. It is a colorless, -
![Liquefied Propylene]()
Liquefied PropyleneLiquefied Propylene is a colorless, flammable, and versatile olefin gas, serving as the second most important petrochemical feedstock globally after ethylene. This unsaturated hydrocarbon, with its -
![Liquefied Propane Gas]()
Liquefied Propane GasLiquefied Propane Gas, commonly referred to as propane or LPG, is a versatile, clean-burning hydrocarbon fuel stored and transported as a liquid under moderate pressure. Derived from natural gas -
![Industrial Isobutane Gas]()
Industrial Isobutane GasIndustrial isobutane gas is an isomer of butane (C₄H₁₀), characterized by a branched molecular structure with three methyl groups attached to a central carbon atom. This colorless, odorless, and -
![N-Butene 99.50%]()
N-Butene 99.50%n-Butene 99.50%, also known as 1-Butene or Butylene, is a linear, gaseous mono-olefin with a carbon-carbon double bond. This product specification guarantees a minimum purity of 99.50% n-butene, -
![Isobutylene Gas 99.50%]()
Isobutylene Gas 99.50%Isobutylene gas 99.50% (2-Methylpropene) is a highly reactive, branched-chain C4 olefin characterized by its unsaturated double bond on a tertiary carbon. This product specification guarantees a -
![1,3-Butadiene]()
1,3-Butadiene1,3-Butadiene is a highly reactive conjugated diene with two carbon-carbon double bonds separated by a single bond. It is a colorless, flammable gas with a mild aromatic odor and serves as a critical -
![1,2-propadiene (Allene)]()
1,2-propadiene (Allene)1,2-propadiene (Allene), commonly known as allene, is a unique and highly reactive hydrocarbon characterized by two cumulative double bonds (C=C=C). This colorless, flammable gas is the simplest -
![Liquid Isoprene 99.50%]()
Liquid Isoprene 99.50%Liquid isoprene 99.50% is a colorless, volatile hydrocarbon classified as a conjugated diene, serving as the fundamental biological and industrial building block for natural rubber and a wide range -
![Methane Calibration Gas]()
Methane Calibration GasMethane and Methane Calibration Gas is the simplest hydrocarbon and the primary component of natural gas, serving as a fundamental energy resource and crucial chemical feedstock. This colorless, -
![Ethane Calibration Gas]()
Ethane Calibration GasEthane and Ethane calibration gas is the second simplest alkane, a colorless, odorless, flammable gas primarily recovered from natural gas and petroleum refining streams. While it is a valuable -
![Isopentane Calibration Gas]()
Isopentane Calibration GasIsopentane and Isopentane calibration gas is a branched-chain isomer of pentane (C₅H₁₂) with the formula (CH₃)₂CHCH₂CH₃. It is a colorless, highly volatile, and flammable liquid hydrocarbon. As a key
Why Choose Us
Modern Manufacturing Base & Strong Production Capacity
Our production base is located in Minquan County, Henan Province, covering 20,000㎡ and equipped with modern office buildings, R&D facilities, and advanced production workshops, ensuring stable large-scale manufacturing capability.
Advanced Production Equipment
We are equipped with multiple large-scale storage tanks, industrial gas systems, ton containers, automated filling lines, and semi-automatic production equipment, enabling efficient, precise, and consistent product manufacturing.
Certified Quality Management System
We have obtained international market access qualifications and safety certifications such as ISO, ensuring that our production and quality control systems meet global regulatory and industry standards.
Global Export Experience & Full-Service Support
Our products are exported to the Middle East and Southeast Asia, earning strong customer trust. We provide full-service support including pre-sales consultation, in-process order tracking, and reliable after-sales service to ensure customer satisfaction.
Types of Bulk Materials
The Bulk Materials produced by our company mainly include the following types:
Pure Ethylene
Pure Ethylene is the simplest alkene and one of the most important organic chemicals globally, serving as the fundamental building block for a vast array of petrochemical products. It is a colorless, flammable gas with a faint, sweet odor. As the cornerstone of the modern chemical industry, pure ethylene is primarily produced through the steam cracking of hydrocarbons. Its high chemical reactivity, driven by the carbon-carbon double bond, makes it the primary feedstock for polymers and other essential chemicals.
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CAS No. |
74-85-1 |
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UN No. |
UN1962 (Ethylene, compressed) or UN1038 (Ethylene, refrigerated liquid) |
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Molecular Formula |
C₂H₄ |
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Hazard Classification |
2.1 (Flammable gas) |
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Purity |
Polymer-grade ethylene typically exceeds 99.9% purity, with strict limits on impurities like acetylene, oxygen, carbon monoxide, sulfur compounds, and water, which can poison catalysts. |
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Physical State |
Colorless, flammable gas; can be liquefied under pressure or at low temperatures (-103.7°C). |
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Boiling Point |
-103.7°C (-154.7°F) |
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Vapor Density |
Slightly less dense than air (0.97 relative to air). |
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Critical Properties |
Critical temperature |
Advantages of Pure Ethylene
Unparalleled Versatility as a Feedstock
The ethylene molecule is the starting point for manufacturing major commodity plastics (polyethylene), fibers, solvents, and numerous industrial chemicals.
High Reactivity
The carbon-carbon double bond readily undergoes addition, polymerization, oxidation, and halogenation reactions, enabling diverse downstream chemistry.
Foundation of the Petrochemical Industry
Its massive and efficient production forms the economic backbone of the chemical sector, with global production exceeding 200 million metric tons annually.
Established Global Infrastructure
A mature and extensive network exists for its production, pipeline transportation, and storage, ensuring stable global supply chains.
Polymer Production (Primary Use)
Over half of global ethylene production is used to manufacture various grades of polyethylene (PE), the world's most common plastic.
Ethylene Oxide/Ethylene Glycol
Oxidation of ethylene produces ethylene oxide, a precursor to ethylene glycol (antifreeze, PET polyester) and ethoxylates (surfactants).
Styrene Production
Via ethylbenzene, leading to polystyrene plastics and synthetic rubber (SBR).
Vinyl Chloride Monomer (VCM)
Combined with chlorine to form EDC, which is cracked to yield VCM for PVC production.
Other Chemicals
Production of ethanol, acetaldehyde, linear alpha olefins, and other specialty chemicals.
Liquefied Propane Gas
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CAS No. |
74-98-6 |
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UN No. |
UN1978 (Propane) |
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Molecular Formula |
C₃H₈ |
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Hazard Classification |
2.1 (Flammable gas) |
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Purity |
Commercial grade typically >95% propane, with the balance being other hydrocarbons like propylene, ethane, and butane. HD-5 grade is a common specification for engine fuel, limiting propylene content. |
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Physical State |
Colorless, odorless gas; stored and handled as a clear, colorless liquid under pressure in its container. |
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Boiling Point |
-42.1 °C (-43.8 °F) at atmospheric pressure. |
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Vapor Pressure (at 21°C) |
Approximately 8.4 bar (122 psi). |
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Expansion Ratio |
1 volume of liquid expands to about 270 volumes of gas at 15°C. |
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Odor |
Commercially odorized with a stenching agent (e.g., ethyl mercaptan) for safety. |
Advantages of Liquefied Propane Gas
Portable & Storable Energy
Its high energy content (approx. 91,500 BTU per gallon) and ability to liquefy under moderate pressure allow for efficient storage in cylinders and tanks, enabling energy access anywhere.
Clean Combustion
Liquefied propane gas burns relatively cleanly compared to many other fuels, producing lower greenhouse gas emissions per BTU than gasoline or diesel and minimal soot or sulfur oxides.
Reliable & On-Demand Supply
It is not dependent on pipelines, providing a dependable energy source for backup power, seasonal use, and mobile applications.
Versatile Application Range
Can be used across residential, commercial, industrial, and agricultural sectors for space/water heating, cooking, fuel for vehicles and forklifts, metal cutting, and as a chemical feedstock.
Residential & Commercial
Primary fuel for heating homes and businesses, water heating, cooking (stoves, grills), clothes drying, and backup power generation.
Industrial
Fuel for fork-lifts (indoor use), metal cutting/welding (oxy-propane), space heating in warehouses, and as a process heat source.
Agriculture
Fuel for crop drying, flame weeding, heating greenhouses and livestock buildings, and powering irrigation engines.
Transportation
Alternative fuel for vehicles (autogas), buses, and fleets, often blended with butane.
Chemical Feedstock
An increasingly important raw material for producing propylene via PDH units.
Packaging and Shipping
FAQ
As one of the most reliable bulk materials manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to wholesale bulk materials for sale here from our factory. Thank you for your interest in our products.
Ethane Calibration Gas, Isobutylene Gas 99 50 , Liquid Octene
