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Chengdu Hongjin Chemical Co., Ltd. – A trusted global manufacturer and exporter of high-purity specialty gases, electronic gases, medical gases, and refrigerant gases. ISO-certified, reliable, and scalable.

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About CDHJ Gas

Chengdu Hongjin Chemical Co., Ltd. is a professional enterprise specializing in the production and export of industrial gases, specialty gases, electronic gases, medical gases, refrigerant gases, rare gases, and isotopes.

With advanced manufacturing facilities and strict quality control systems, we deliver gases with purity levels up to 99.9999%, meeting international standards for semiconductor, pharmaceutical, energy, and industrial applications.

99.9999%
Max Purity
50+
Global Markets
Nitrogen Trifluoride Gas

Our Product Range

High-purity gases for industrial, electronic, medical, and refrigeration applications. All products are manufactured under strict ISO and international safety standards.

Nitrogen Trifluoride NF3

Nitrogen Trifluoride NF3

Electronic Grade | Purity: 99.9%-99.999%

  • CAS: 7783-54-2
  • UN: UN2451
  • Grade: Electronic
Tungsten Hexafluoride WF6

Tungsten Hexafluoride WF6

Electronic Grade | Purity: 99.99%

  • CAS: 7783-82-6
  • UN: UN2190
  • Grade: Electronic
Ammonia NH3

Ammonia NH3 R717

Industrial & Electronic Grade | Purity: 99.9%-99.9995%

  • CAS: 7664-41-7
  • UN: UN1005
  • Grade: Industrial, Electronic
N-Butane N-C4H10

N-Butane N-C4H10

Refrigerant Grade | Purity: 99.5%

  • CAS: 106-97-8
  • UN: UN1011
  • Grade: Refrigerant (R600)
Oxygen O2

Oxygen O2

Industrial, Medical, Electronic | Purity: 99.9%-99.9999%

  • CAS: 7782-44-7
  • UN: UN1072
  • Grade: Industrial, Medical, Electronic
Hydrogen H2

Hydrogen H2

High Purity | 99.995%-99.999%

  • CAS: 1333-74-0
  • UN: UN1049
  • Grade: Industrial, Electronic
Silane SiH4

Silane SiH4

Electronic Grade | Purity: 99.999%

  • CAS: 7803-62-5
  • UN: UN2203
  • Grade: Electronic
Carbon Tetrafluoride CF4

Carbon Tetrafluoride CF4

Electronic Grade | Purity: 99.99%

  • CAS: 75-73-0
  • UN: UN1982
  • Grade: Electronic
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Why Choose CDHJ Gas?

We combine cutting-edge technology, rigorous quality control, and global logistics to deliver reliable gas solutions.

High Purity Standards

Our gases are produced under strict ISO and international standards, with purity levels up to 99.9999%, ideal for semiconductor and medical applications.

Global Export Capability

Serving over 50 countries with reliable logistics, proper DOT/UN packaging, and full documentation for seamless international delivery.

Safety & Compliance

All products comply with DOT Class, UN regulations, and EINECS standards. We ensure safe handling, storage, and transport of hazardous and non-hazardous gases.

99.9999%
Max Purity
50+
Countries Served
20+
Years Experience
1000+
Products

Frequently Asked Questions

What gases do you specialize in?

We specialize in industrial gases, specialty gases, electronic gases (e.g., NF3, WF6, SiH4), medical gases (O2, N2O), refrigerant gases (R290, R600a), rare gases (Xe, Kr, Ne), and calibration mixtures.

What purity levels do you offer?

Purity ranges from 99% to 99.9999%, depending on the gas and application. Electronic and medical gases are typically 99.999% or higher.

Do you provide custom gas mixtures?

Yes, we offer custom mixture gases such as 20% Silane in Nitrogen, 20% EO in CO2, and other calibration and standard gas blends.

How are gases packaged and shipped?

Gases are packaged in 10L, 40L, 47L, 50L, 800L cylinders, and ISO tanks. We comply with UN/DOT regulations for safe international shipping.

Get in Touch

Ready to discuss your gas supply needs? Contact us for quotes, technical support, or product information.

Email: [email protected]

Phone: +86 13699406355

Office: +86-028-84791130

Address: Room 402, Xixi Central International, Chenghua District, Chengdu City, China

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