Introduction
What is calcium carbide, and why is it important?
Calcium carbide (CaC2) is a grayish-black, solid chemical compound used primarily for producing acetylene gas (C2H2) when it reacts with water. The chemical reaction is:
CaC2 + 2H2O → C2H2 + Ca(OH)2
This gas is widely used in industries such as metal fabrication, steelmaking, and chemical manufacturing. Calcium carbide is also used in the production of calcium cyanamide (a nitrogen fertilizer), and in desulfurization processes in the iron and steel industries.
large-scale storage of calcium carbide in an industrial facility
Use of Calcium Carbide
1. Acetylene Gas Production
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- Applications: Acetylene is used for:
- Welding and cutting metals (oxy-acetylene torches)
- As a raw material in chemical synthesis (e.g., plastics, solvents)
- Applications: Acetylene is used for:
2. Carbide Lamps
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- Used in mining and caving as portable light sources. The reaction of calcium carbide with water produces acetylene, which burns with a bright flame.
3. Desulfurization in Steel Manufacturing
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- Calcium carbide is used to remove sulfur impurities from iron and steel during the smelting process.
4. Fruit Ripening
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- In some regions, calcium carbide is (controversially) used to artificially ripen fruits, especially mangoes and bananas. However, this practice is banned or restricted in many countries due to health concerns—acetylene can contain toxic impurities like arsenic and phosphorus.
5. Making Cyanamide Fertilizers
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- When reacted with nitrogen, calcium carbide produces calcium cyanamide, which is used as a fertilizer and also in weed control.
6. Signal Flares and Fireworks
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- Acetylene gas produced from calcium carbide can be used in flares and fireworks for creating bright, intense light.
calcium carbide
How China leads in producing calcium carbide
China is the world’s largest producer and consumer of calcium carbide. It accounts for more than 80% of global production, thanks to its large reserves of coal and limestone—the two primary raw materials. The country’s low-cost electricity and established chemical industry infrastructure further contribute to its leadership.
China’s Role in the Global Calcium Carbide Market
What countries produce calcium carbide?
According to Antaike and SMM, calcium carbide is mainly produced in China, India, Russia, Kazakhstan, and the United States. However, China far outpaces others in terms of output and market influence.
Calcium Carbide for Miners’ Lamps
Where is calcium carbide made in China?
Provincial Analysis
Inner Mongolia is the largest producer due to its abundant coal reserves and low electricity costs. The region benefits from access to cheap thermal power, making it ideal for energy-intensive carbide production.
Shaanxi Province is another major hub, leveraging its strategic location near coal mines and chemical industrial zones.
Regional Insights
The Ordos Economic Zone in Inner Mongolia is a top calcium carbide production cluster. It hosts integrated chemical plants that reduce logistics costs and enhance production efficiency.
In western China, Ningxia Hui Autonomous Region also stands out. It has strong government support, proximity to coal resources, and a rapidly growing chemical sector.
Who are the top Chinese calcium carbide producers?
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- China National Chemical Corporation (ChemChina) — One of the largest SOEs with diversified chemical manufacturing operations.
- Shaanxi Yulin Energy Group — A key player in the northwest, with large-scale calcium carbide and PVC production.
- Inner Mongolia Berun Group — Specializes in integrated carbide-acetylene-PVC value chains.
Inside the Chemical Processing Plant
How much calcium carbide is exported?
China exported over 60,000 metric tons of calcium carbide in 2023, according to customs data. However, most production is used domestically due to strong internal demand from chemical and steel industries.
What are the main countries that China exports calcium carbide to?
Key destinations include:
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- India
- South Korea
- Vietnam
- Countries in Africa and Southeast Asia
These markets value Chinese calcium carbide for its competitive pricing and consistent quality.
Calcium Carbide Price Trends & Cost Drivers in China
How big is the calcium carbide market?
The global market was valued at USD 11.2 billion in 2023 and is projected to reach USD 14.5 billion by 2027 (Source: Global Market Insights). China contributes to over 80% of this output.
Pricing trends over the last year
Prices have fluctuated between $500 to $750 per metric ton in 2024. According to Shanghai Metals Market (SMM), the second half of 2024 saw a rise due to tightening environmental regulations and supply constraints.
What affects the price of calcium carbide?
Raw material and energy costs
Calcium carbide is energy-intensive. Costs of coal, electricity, and lime significantly impact final prices.
Environmental rules and policies
China’s Ministry of Ecology and Environment has imposed stricter emissions targets, causing temporary shutdowns in non-compliant plants.
“Environmental regulations in western provinces have tightened sharply, reducing operational rates by 15-20%,” said Li Zhang, analyst at SMM.
Shipping delays and global demand
Maritime disruptions and container shortages affected export supply chains, especially during peak industrial seasons.
Currency changes and trade policies
The RMB/USD exchange rate affects the competitiveness of Chinese exports. In 2024, currency fluctuations contributed to 3-5% price variability.
Why is calcium carbide so expensive?
High energy usage, increasing environmental compliance costs, and fluctuating raw material prices are key drivers. Additionally, “China’s dual-control energy policy adds structural pressure to high-emission industries like carbide production,” said a 2024 Bloomberg Energy Outlook report.
Pure White Calcium Carbide Powder on Display
How much does calcium carbide cost?
As of Q1 2025, the average FOB China price is approximately $680/MT, while domestic spot prices vary by province. The price per kg ranges from $0.60 to $0.80, depending on grade and purity.
How much is a pound of carbide worth?
Approximately $0.30 to $0.36/lb, based on current conversion rates.
What is the price of calcium carbide in China?
Latest data from Antaike reports Inner Mongolia prices at 4,900 RMB/ton, and Shaanxi prices slightly higher due to regional energy costs.
What’s the price forecast for 2025?
SMM forecasts a 3-7% increase in prices by year-end 2025, driven by:
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- Continued enforcement of green policies
- High industrial demand (especially for acetylene production)
- Supply rationalization
Supply Chain & Logistics: What Buyers Need to Know
Challenges when shipping calcium carbide from China
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- Long lead times during peak seasons
- Special handling due to flammability risks
- Inland transportation bottlenecks in landlocked provinces
Costs and shipping times
FOB port costs range from $50 to $150/MT. Sea transit to Southeast Asia takes about 7–10 days; to Europe, around 30–45 days.
For more information on shipping guide, refer to our blog post on Top 10 Shipping Companies in China
Global Trade in Motion: Shipping Containers at Sea
How calcium carbide is packaged and what’s needed for exports
Calcium carbide is packed in airtight, sealed drums or containers to prevent moisture exposure. Export documentation must comply with China’s hazardous material regulations.
Here are some of the options to consider:
1. Sealed Metal Drums (Barrels)
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- Material: Steel, sometimes galvanized
- Size: 25 kg, 50 kg, 100 kg, or even 200–250 kg
- Features:
- Airtight seals with screw tops or clamped lids
- Often lined with plastic or painted inside to reduce corrosion
- Use Case: Industrial applications and bulk storage
2. Tin Cans / Small Sealed Containers
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- Material: Tin or thick plastic with airtight lids
- Size: 1 kg to 5 kg
- Features:
- Often used for mining lamps or lab use
- Easier to handle in small quantities
- Use Case: Retail or fieldwork (e.g. carbide lamps)
3. Polyethylene-Lined Bags Inside Steel Drums
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- Material: Inner polyethylene bag + outer steel drum
- Size: Typically 50 kg
- Features:
- Double-layer protection from moisture
- The bag provides chemical resistance; drum offers physical durability
- Use Case: Long-distance or export shipping
How do you dispose of calcium carbide?
Unused calcium carbide must be treated as hazardous waste. Disposal requires neutralization and must follow local and international guidelines. Most companies work with licensed waste management firms.
Ensuring the products meet quality standards
Reputable suppliers provide SGS or BV certifications, and often include third-party lab results verifying purity (typically 80-90%).
Risks & Opportunities in China’s Calcium Carbide Market
What risks could affect the supply of calcium carbide in 2025?
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- Environmental crackdowns
- Regional power shortages
- Changes in export tariffs or bans
- Logistics interruptions from geopolitical issues
Industries that are growing and need more calcium carbide
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- PVC production in Southeast Asia
- Acetylene-based chemical synthesis
- Metal fabrication and cutting industries
What are the rules for calcium carbide?
The State Council classifies it as a hazardous chemical. Plants must comply with China’s “Hazardous Chemicals Safety Management Regulation” (2011), and export shipments must pass CIQ inspections.
How to Source Calcium Carbide from China Efficiently
How to find reliable suppliers for calcium carbide
Are you looking for global suppliers or focusing specifically on Chinese manufacturers? We’ve compiled resources to help you navigate both scenarios.
1. Use reliable B2B platforms and tools
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- Made-in-China, Alibaba, 1688.com
- Industry fairs such as Canton Fair
Tip: Look for suppliers with 5+ years of export history, high transaction volume, and good response rates
If you are unsure of a company, feel free to consult us using the link below
WhatsApp Us for Free a Consultation
2. Cross-check business licenses and request key documents
Ask suppliers for:
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- MSDS (Material Safety Data Sheet)
- TDS (Technical Data Sheet)
- ISO Certifications (e.g., ISO 9001)
- REACH or SGS certification
- Previous Bill of Lading or export documents (proof of shipment history)
3. Attend Trade shows or Expos
Discover Innovation at ICIF 2019
4. Order a sample & Use third party inspection
Always request a sample before a bulk order
Use an inspection service like:
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- SGS
- Bureau Veritas
- AsiaInspection (QIMA)
- TÜV Rheinland
Still unsure? Refer to some of our blog posts that give comprehensive guide on sourcing suppliers from China:
WhatsApp Us for Free a Consultation
How a sourcing partner can make procurement easier
Working with a local partner like CAMAL helps:
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- Verify suppliers onsite
- Manage price negotiations
- Handle QC and logistics
- Reduce cultural/communication gaps
Conclusion & Next Steps
Key points
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- China dominates the global calcium carbide market due to cost and scale.
- Prices in 2025 are expected to rise moderately.
- Main supply risks include regulatory changes and energy costs.
How businesses can ensure a smooth sourcing process
To avoid pitfalls, buyers should:
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- Work with verified suppliers
- Use third-party inspectors
- Stay updated on policy shifts
- Consider engaging a trusted sourcing agent
WhatsApp Us for Free a Consultation
How can CAMAL help you manage your China Sourcing?
✅ Do you spend too much time finding the right manufacturers in China?
✅Do you face difficulties in communicating your requirements to suppliers in China?
✅ Do your products often need customization just for you?
✅ Do you wish someone could help you with end-to-end procurement, so you can focus on growing your business?
If your answer is YES, Reduce Your China Sourcing Headaches, WhatsApp Us (Faster) or Email Us Now for a FREE Consultation
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