Acetylene

    • Product Name: Acetylene
    • Alias: Dissolved Acetylene
    • Einecs: 200-816-9
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    102378

    Chemical Name Acetylene
    Chemical Formula C2H2
    Molecular Weight 26.04 g/mol
    Cas Number 74-86-2
    Appearance Colorless gas
    Odor Faint, sweet, garlic-like odor
    Melting Point -80.8 °C
    Boiling Point -84.0 °C
    Density 1.097 kg/m³ (at 0°C, 1 atm)
    Flammability Extremely flammable
    Solubility In Water Moderately soluble
    Autoignition Temperature 305 °C
    Explosive Limits 2.5% - 100% (in air)
    Critical Temperature 35.17 °C
    Critical Pressure 61.8 atm

    As an accredited Acetylene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Acetylene is supplied in sturdy, maroon-colored steel cylinders, marked as "Acetylene," containing 40 liters, fitted with safety valves.
    Shipping Acetylene is shipped as a dissolved gas in specially designed, high-pressure cylinders with solvent (usually acetone) to ensure stability and prevent decomposition. Cylinders are upright, clearly labeled, and protected from heat, flames, or impact. Handling and transportation must comply with strict safety regulations due to its high flammability.
    Storage Acetylene should be stored in specially designed, upright, well-ventilated cylinders away from heat, open flames, and electrical sources. Cylinders must be kept at temperatures below 52°C (125°F), secured to prevent falling, and separated from oxidizers, especially oxygen. Storage areas should be dry and cool, with good ventilation, and cylinders should be clearly labeled and regularly inspected for leaks or damage.
    Application of Acetylene

    Applications of Acetylene in Industrial Manufacturing

    As a primary manufacturer of acetylene, we supply key industries with high-purity material for integration into specialized downstream processes. Below, we detail several critical industrial applications, highlighting compliance frameworks, typical usage ratios, production stages, and end product types based on our scale manufacturing experience.

    1. Synthesis of Vinyl Chloride Monomer (VCM) for PVC Production

    Acetylene acts as an essential feedstock in the carbide-based route for vinyl chloride monomer synthesis. End users rely on controlled hydrochlorination of acetylene with hydrogen chloride in fixed-bed catalytic reactors. This method dominates in regions with limited access to ethylene, requiring careful dosing and real-time process monitoring to ensure product purity and meeting sector-specific quality targets.

    Industry compliance standards

    • GB/T 24448-2009 (Vinyl Chloride for Industrial Use – China National Standard)
    • ISO 9001:2015-certified quality management systems
    • Responsible Care and ICIS supply chain safety initiatives
    • National Emission Standards for Hazardous Air Pollutants (NESHAP, US EPA) for VCM plants

    Typical usage ratio

    • Approximately 0.5–0.6 tonnes acetylene per tonne VCM output
    • Feed ratio adjusted based on acetylene purity and catalyst conversion rates (typically under 1% off ratio from stoichiometric)

    Downstream process integration

    • Continuous feeding into hydrochlorination reactors under strictly regulated temperature (130–160°C) and pressure (up to 1.8 MPa)
    • Real-time gas analysis for acetylene flow control
    • Byproduct gas neutralization and vent management

    Final product types

    • Vinyl chloride monomer (VCM)
    • Polyvinyl chloride (PVC) resin for construction, pipes, cables, and medical devices

    2. Synthesis of Acetylene Black for Electrical Conductive Materials

    Acetylene serves as the unique precursor for manufacturing acetylene black—a distinctive type of carbon black with extremely high purity and structure. Industries use controlled thermal decomposition or partial combustion processes to convert acetylene in closed reactors, obtaining a product with defined particle morphology for critical battery, cable, and electronics applications. Process conditions directly affect product quality, necessitating rigorous gas purity controls.

    Industry compliance standards

    • IEC 60228 for conductors in insulated cables
    • GB/T 3782 (China National Standard for Carbon Black in Rubber)
    • ISO 9001:2015 for quality control in pigment and conductive grade carbon
    • RoHS compliance for electronic and electrical end use

    Typical usage ratio

    • Direct conversion: Roughly 2–3 kg acetylene yields 1 kg acetylene black
    • Yield affected by reactor type and residence time; adjustments made as per end specification

    Downstream process integration

    • Thermal decomposition in batch or continuous closed reactors at 800–1300°C
    • Automated gas scrubbing and emissions monitoring
    • Integration into post-processing for particle sieving and drying

    Final product types

    • Acetylene black for lithium-ion battery anodes
    • Conductive rubber and cable sheathing
    • Antistatic coatings and specialty electrical inks

    3. Welding and Metal Cutting (Oxy-Acetylene Processes)

    Acetylene enables precision welding, cutting, and brazing operations via its high combustion temperature when mixed with oxygen. Fabrication and heavy machinery sectors use on-site acetylene generation or cylinder-delivered gas for manual and automated oxy-fuel systems, demanding robust supply integrity, regulator safety, and compliance with compressed gas standards.

    Industry compliance standards

    • EN ISO 14175 (Welding consumables – Gases and gas mixtures)
    • ISO 2503:2009 (Gas welding equipment – Pressure regulators and inlet connections)
    • US OSHA 1910.253 (Welding, Cutting, and Brazing)
    • Compressed Gas Association (CGA) G-1 standards

    Typical usage ratio

    • Acetylene gas flow: 0.5–2.5 m³ per hour per torch
    • Oxygen to acetylene ratio typically 1.2:1 for neutral flame; adjusted for cutting or welding base material

    Downstream process integration

    • Acetylene supplied to oxy-gas torches via precision regulators and pipeline or cylinder systems
    • Direct operator control or automated torch integration in CNC cutting tables
    • Gas leak detection and purging as standard operational protocol

    Final product types

    • Welded steel and alloy assemblies
    • Cut metal plates and fabricated structural components
    • Brazed pipes and heat exchangers in HVAC and shipbuilding industries

    4. Synthesis of 1,4-Butynediol and Derivatives

    Downtime chemical manufacturers use acetylene as a feed molecule to produce 1,4-butynediol via the reaction with formaldehyde over copper catalysts. This intermediate supports various engineering plastics, pharmaceutical intermediates, and specialty chemical sectors. Process precision governs impurity profiles and downstream polymerization potential.

    Industry compliance standards

    • REACH registration for 1,4-butynediol (EU chemicals regulation)
    • ISO 9001:2015 for raw material traceability
    • GMP guidelines for specialty chemical intermediates
    • Chinese Pharmacopoeia for pharmaceutical intermediates (where applicable)

    Typical usage ratio

    • About 1.15–1.25 kg acetylene per kg 1,4-butynediol, exact ratio based on formaldehyde purity and conversion efficiency
    • In continuous processes, slight excess acetylene ensures complete conversion

    Downstream process integration

    • Acetylene introduced to formaldehyde solution fed over copper-beryllium catalyst beds at 90–130°C
    • Continuous monitoring for oxygen and moisture contamination
    • Post-reaction distillation and solvent recovery streams

    Final product types

    • 1,4-Butynediol for specialty polymers
    • Tetrahydrofuran (THF) and butanediol derivatives for elastomers
    • Pharmaceutical and agrochemical intermediates

    5. Synthesis of Polyvinyl Acetylene (PVA) for Specialty Applications

    Acetylene undergoes polymerization under specialized catalyst systems to form polyvinyl acetylene, used in advanced functional coatings and electronic materials. This niche downstream process requires careful catalyst moisture exclusion, precise feed metering, and post-polymerization purification to meet stringent mechanical and conductivity specifications.

    Industry compliance standards

    • ISO 9001:2015 for specialty polymer manufacturing
    • IEC 62631 standards for polymer dielectric and electrical properties
    • RoHS for electronics application compliance
    • REACH registration for polymer safety in the EU

    Typical usage ratio

    • Approximately 0.8–1.2 tonnes acetylene per tonne PVA, depending on catalyst selectivity and reactor yield
    • Usage ratio calibrated according to desired molecular weight and application-specific properties

    Downstream process integration

    • Gas-phase acetylene supplied to batch or continuous reactors with Ziegler-Natta type catalyst systems
    • Post-polymerization washing and solvent removal
    • Controlled drying and micronization for downstream use

    Final product types

    • Polyvinyl acetylene for antistatic coatings
    • Functional membranes for filtration modules
    • Polymer composites in optoelectronics and sensors

    6. Production of Acetaldehyde and Acetic Acid via Acetylene Hydration

    Hydration routes utilize acetylene as a feedstock in the catalyzed synthesis of acetaldehyde and acetic acid. This pathway supports large-scale chemical synthesis when ethylene routes are constrained, especially in regions with coal-to-acetylene infrastructure. Production lines tightly control reaction temperature, catalyst load, and byproduct minimization.

    Industry compliance standards

    • ISO 9001:2015 for chemical manufacturing
    • EU Industrial Emissions Directive (IED) for volatile compound management
    • GB/T 1628-2008 for industrial acetic acid quality
    • REACH (EU Regulation for chemicals)

    Typical usage ratio

    • About 0.55–0.65 tonnes acetylene per tonne acetaldehyde
    • For acetic acid, ratio typically 0.47–0.52 tonnes acetylene per tonne output
    • Ratio adjusted for catalyst type and target yield

    Downstream process integration

    • Acetylene reacted with water or acetic acid over mercury or oxide catalysts at 65–130°C
    • Feed gas dehydration systems preceding catalyst beds
    • Recycling and purification integrated in closed loop processing

    Final product types

    • Acetaldehyde for butyraldehyde, perfumery, and coating intermediates
    • Acetic acid for solvent, plasticizer, and acetate fiber manufacturing
    Free Quote

    Competitive Acetylene prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615365186327

    Email: admin@ascent-chem.com

    Get Free Quote of Ascent Petrochem Holdings Co., Limited

    Flexible payment, competitive price, premium service - Inquire now!

    Certification & Compliance
    More Introduction

    Acetylene: Direct from the Manufacturer’s Bench

    Our Perspective as an Acetylene Producer

    Acetylene stands apart from many industrial gases. Long before it fills a cylinder, the preparation demands an almost craftsman’s attention to safety, reactivity, and purity. We handle each batch ourselves, making production and supply decisions directly tied to what our customers use daily in fabrication shops, laboratories, and manufacturing lines. This is not a commodity that gets shuffled from hand to hand. Every cylinder with our mark reflects a production standard built on decades of direct experience with what purity and pressure mean to a smart welder or a precision lab process.

    Specifications Built on Purpose

    Pure acetylene does a simple thing very well. Unlike other fuel gases, it delivers the highest flame temperature in oxygen, a fact that continues to set it apart. Whether for oxy-acetylene welding, flame cutting, or chemical syntheses, the purity grade means more than just a percentage written on a label. Our production lines focus on removing common contaminants like phosphine and sulfur compounds, which can ruin a weld or a catalyst. The purity levels provided by our team consistently range higher than most local suppliers offer. We keep moisture and other unwanted gases far below the limits that would interfere in fine welding or cut performance. Each lot comes off the line with full composition testing and real traceability, not just as paperwork but as documented work done here.

    In practical terms, we keep standard cylinder sizes: 40, 50, and 60-liter cylinders, pressurized up to safe but robust limits for transport and storage. Every one has a unique identification code, allowing us to track back exactly when it was filled and with which batch. We deploy solvent systems involving acetone as the stabilizing medium. This detail makes a difference; pure acetylene under pressure by itself would be unstable, but in acetone within a porous mass, it travels safely to your torch or reactor.

    Why Acetylene Still Holds Its Place in Industry

    People sometimes ask if acetylene’s era has passed, given the rise of alternative cutting and welding methods. From our perspective in the plant, usage patterns show a steadiness rooted in performance. Acetylene’s flame temperature can cut or join metals other fuel gases struggle with. In oxy-acetylene welding, the flame’s reducing zone makes for clean weld beads without contamination—the kind of control many still prefer for aircraft, bicycle frames, and artistic metalwork. Thousands of skilled welders rely daily on a fuel source that readily responds to their adjustments, and they tell us when a cut isn’t quite right.

    Chemical manufactories take in our acetylene for hydrocarbon synthesis, polymerization, and pharmaceutical reactions. In these applications, what counts is not just the number on the gas analysis but stability, predictability, and transparency in the sourcing. We keep dedicated handling equipment, ensuring oxygen or oil never crosses into acetylene lines. That level of care prevents batch-to-batch variation and keeps our reputation solid.

    Comparing Acetylene with Other Gases

    Shop owners and techs often compare acetylene to propane or MAPP gas, especially for cutting and heating. Each gas brings its ups and downs. Acetylene gives a hotter, more focused flame, making thin precise welding much easier. Propane covers broader heating applications but can leave heavy scale when used to cut steel. We have watched both fluids in action, and, every time, for fine sheet metal or when a craftsman demands absolute precision on a tricky joint, acetylene proves more forgiving and cleaner.

    Some competitors pick propane for cost or shelf life. From the manufacturer’s floor, we understand the reasoning, but the truth surfaces in how fast and how cleanly a job finishes. When clients call after a failed flame-cutting operation using propane, they rarely make the same mistake again. Acetylene’s higher flame core temperature, about 3,100°C in oxygen, does not just sound impressive—it cuts through low-carbon steels quickly without creating ragged edges or unwanted oxide layers.

    Lab purity grades matter for those using acetylene in analytical work or organic synthesis. We supply ultra-high purity volumes for these clients, ensuring they see no spectral interference or unexpected side reactions. Other manufacturers sometimes dilute their production focus, but here we keep dedicated lines and trained staff for chemists, not only industrial burners.

    Common Challenges in Acetylene Manufacturing

    Production runs on calcium carbide hydration. Few processes show risk quite so clearly; improper water metering or sluggish filtration can create unwanted impurities or even lateral reactions. Our crew keeps systems scrupulously dry and clean. We monitor inbound raw material quality, including calcium carbide, since small differences in granularity or composition affect gas purity. Failures at this step don’t just result in an off-spec batch—they risk everyone in the filling hall. We take these technical and safety challenges seriously, investing in online monitoring and manual sampling, replacing fittings and seals on preventative schedules, and holding freshers to rigorous training before anyone gets near the live system.

    Cylinder safety is a topic often misunderstood outside the plant. Inside, we track every cylinder’s age, history, and previous repairs. We refurbish and test bodies and valves well before regulatory timelines, only releasing stock where every pressure, weld, and valve seat meets internal standards. It is not enough to rely on outside inspections or regulatory minimums.

    Tackling Impurities and Keeping Standards High

    Impurities cost users money and time. Even parts-per-million contamination by phosphine or hydrogen sulfide can poison a catalyst or foul a welding bead. Making acetylene clean begins with feedstock but does not stop there. We use advanced multi-stage scrubbing and filtration, equipment designed or adapted by our engineers after years of practical experience dealing with local carbide sources and varying environmental conditions. At every shift turnover, operators inspect and recalibrate flow and pressure sensors.

    We pay close attention to cylinder cleanliness. Open a returned cylinder and one finds everything—grease, water droplets, rust—all of which can trigger unwanted decomposition or foul next-fills. Our crew strips and processes returned cylinders, using both steam cleaning and solvent washes followed by vacuum drying. The difference becomes clear on the customer end, where clean cylinders deliver consistent pressure to the last cubic meter and remain stable even after months in storage.

    Listening to Users and Responding with Real Change

    Welders and technicians have taught us much over the years. People using acetylene are quick to spot inconsistencies: cloudy flames, unexpected odors, pressure drops. Every complaint gets logged and taken back to the floor, even if it means rerunning analyses or halting a lot for retesting. Customers often share workarounds or suggestions for better delivery systems or tailored fill pressures, and our technical teams build improvements based on this direct feedback. For example, after users described acetone mist problems in some cylinder designs, we redesigned our packing and filling protocol, cutting back on mist carryover and improving the working time for each cylinder.

    Changes in Regulations and Environmental Concerns

    Environmental impact has always figured into acetylene manufacturing, more so in recent years with stricter state and global standards. Wastewater from carbide hydrolysis, spent carbides, and solvent vapors require specialized treatment measures. We invested in closed-loop water systems, vapor recovery units, and proper handling protocols long before these became regulatory requirements in some regions. Active monitoring for leaks and emissions, both in the plant and along the supply chain, keeps our operation sustainable and the surrounding community safe.

    We improve energy efficiency wherever possible, using modern compressors, motors, and controls that cut energy demands during gas transfer and recovery. This not only reduces our carbon footprint but also allows us to offer more stable pricing amid fluctuating utility costs. Our experience suggests that adapting early to environmental regulations minimizes headaches down the road and builds trust with environmentally-conscious clients—something changing rapidly in many industries using acetylene.

    Training the Next Generation of Acetylene Producers

    We do not hire people to fill gaps but invest long-term in their skill and safety. Every worker handling acetylene comes up through hands-on training. The difference shows in our daily operations—no shortcuts, no guesswork, just solid, repeatable procedures. We run small-group sessions with experienced mentors overseeing new hires, never letting book learning take the place of practical walkthroughs in live situations. Teams must demonstrate everything from emergency venting to proper leak detection.

    Old hands regularly retrain and audit each other’s work. Knowing gas handling from textbook diagrams differs from seeing a fill gauge surge unexpectedly or feeling a cylinder shell warm unexpectedly under pressure. We keep checklists, but also depend on experience—trusting well-trained eyes, hands, and senses to catch problems before they leave the filling floor.

    The Manufacturer’s Promise to Users

    We do not measure our success by how many cylinders leave the dock, but by the calls and visits from long-standing customers who trust our product for critical work. For us, supplying acetylene does not mean filling out a shipping manifest, but guaranteeing service and safety far beyond industry minimums. Every employee stands behind every batch, ready to answer hard questions, provide documentation, and suggest fixes if anything goes wrong—or above expectations—once the cylinder leaves our gates.

    We understand that customers rely not just on what is stated in a product datasheet but on the actual performance job after job. Downtime for a welder or technician due to faulty gas ruins trust quickly. Our sales and technical support teams maintain close links between the factory and end-users, delivering practical guidance, onsite troubleshooting, and follow-up audits as needed. This philosophy carries through from how we design filling stations to how we set return and cleaning procedures.

    Acetylene’s Role in Modern Manufacturing

    Acetylene maintains a unique place in today’s world. Laser and plasma technologies have made inroads, but the hands of skilled tradespeople and researchers continue asking for acetylene by name—often after seeing side-by-side results with other fuels. The difference becomes clear in edge smoothness, weld depth, and the ability to work quickly with minimal cleanup. Welders repairing heavy equipment or fabricators crafting art pieces recognize acetylene’s flexibility. It cuts, heats, and joins metal wherever precision and reliability matter most.

    Our business endures because the industries that depend on acetylene—fabrication, chemical synthesis, research—expect more than a commodity. They want a dependable partner at the source, one that keeps the supply chain as tight and lean as possible. We provide not just gas, but a guarantee from our production floor to their workshop bench.

    Looking Forward with Acetylene

    Manufacturing acetylene will always demand attention to detail—from raw material procurement to customer service. We see our role not as middlemen but as continuous sources of quality, safety, and trust. By paying heed to feedback, enforcing best practices, investing in cleaner and safer production, and keeping the lines of communication open, we ensure that acetylene remains reliable for everyone from welders to chemists.

    Continuous improvement forms our operational backbone. We test new cylinder packing materials, explore renewable energy sources for plant power, and work closely with suppliers and customers to reduce bottlenecks and inefficiency. No process remains static, and familiarity with acetylene’s quirks and challenges gives us a front-row seat in adopting or rejecting advances that might help—or hinder—our clients’ performance.

    Difference Comes from the Source

    The value in acetylene does not just stem from having a ready stock. What makes our product different is the depth of knowledge and care invested at every step—from carbide selection to final testing before dispatch. Our team stays visible and accessible to users and regulators alike, with an open-door approach for visits, process tours, or technical discussions.

    Other suppliers may shift focus to blends or high-volume gases with less technical oversight. By comparison, our focus remains on delivering what returning clients need: consistent, high-purity acetylene, safe packaging, responsive support, and continuous adaptation to technical and environmental demands. True reliability, in our world, comes from staying close to the source and keeping the craft of acetylene production alive and accountable.

    Top