Anhydrous Hydrogen Sulfide (H₂S) Gas

Anhydrous Hydrogen Sulfide (H₂S) High Purity Gas

Anhydrous Hydrogen Sulfide (H₂S) is a colorless, toxic, flammable specialty gas with a characteristic rotten-egg odor. As a professional manufacturer and exporter of high-purity specialty gases, Wenzhou Yingyue New Materials supplies a full range of H₂S purity grades and complete cylinder specifications, covering laboratory trial use, small-batch production, and large-scale industrial centralized gas supply. All products are strictly quality-controlled, fully compliant with international export standards, and delivered with complete MSDS, COA, and customs clearance documents for global safe transportation.

Product Basic Specifications

Chemical Name: Anhydrous Hydrogen Sulfide

Chemical Formula: H₂S

CAS No.: 7783-06-4

EINECS No.: 231-977-3

UN Transport No.: UN 1053

Dangerous Goods Class: 2.1, 2.3

Appearance: Colorless Transparent Gas

Available Purity Grades:

• Industrial Grade: ≥99.5%

• Chemical Grade: ≥99.9%

• Lithium Battery Grade: ≥99.99%

• Electronic Grade: ≥99.999%

Cylinder Valve: Equipped with CGA330 / W21.8 stainless steel valves, compatible with global mainstream gas pipeline systems

Shelf Life: 2 Years

Complete Cylinder Packaging Specifications

We provide diversified cylinder capacities to match different application scenarios, all cylinders pass strict pressure testing, air tightness inspection and international safety certification (ISO, DOT, GB, JIS, TPED, etc.):

1. Small Test Cylinder (Laboratory Use)

8L / 10L portable cylinders, specially designed for laboratory research, sample testing, and small-scale experimental trials.

2. Standard Seamless Steel Cylinder (Bulk Export)

40L / 47L / 50L high-pressure seamless steel cylinders, the most mainstream specification for international bulk orders and conventional industrial production.

3. Large Welded Steel Cylinder (Factory Centralized Gas Supply)

800L / 926L large-volume welded steel cylinders, suitable for long-term, high-consumption centralized gas supply for industrial factories.

Grade Classification & Professional Industry Applications

Each purity grade is precisely tailored for targeted industries to ensure optimal product performance and production efficiency:

1. Industrial Grade 99.5%

Mainly used for pesticide production, pharmaceutical raw materials, and dye intermediate synthesis for general industrial scenarios.

2. Chemical Grade 99.9%

Widely applied in petroleum refining, metallurgical processing, and conventional fine chemical manufacturing industries.

3. Lithium Battery Grade 99.99%

High-purity grade exclusively used for lithium sulfide synthesis in the new energy lithium battery industry, with ultra-low impurity content to guarantee battery stability and safety.

4. Electronic Grade 99.999%

Ultra-high purity gas for high-end precision manufacturing, mainly applied in semiconductor wafer etching, epitaxial growth, and microelectronic processing industries.

Packaging & Global Delivery

All H₂S gas cylinders are fitted with stainless steel CGA330 or W21.8 corrosion-resistant valves, ensuring excellent air tightness and wide compatibility with global gas supply systems. We support flexible packaging customization according to customer demands.

Shipment is available from major Chinese ports including Shanghai, Hong Kong. A full set of export documents such as MSDS, COA, and dangerous goods shipping certificates are provided to support smooth global customs clearance and safe delivery.

Safety Instructions

Anhydrous hydrogen sulfide is a toxic, flammable, and corrosive gas. It must be stored in a cool, dry, and well-ventilated warehouse, kept away from open flames, high-temperature heat sources, and oxidizing substances. Professional protective equipment is mandatory during operation and handling. Standard safety operation guidelines are provided for all cooperative clients.

Our Advantages

• Full-series purity grades covering traditional chemical, new energy lithium battery, and high-end semiconductor industries

• Complete cylinder specifications from small test bottles to large industrial storage cylinders

• Dual stainless steel valve options for global market adaptation and universal connection

• Strict impurity control and stable batch quality, meeting international high-standard production requirements

• Stable supply capacity of 2000 tons per month, supporting bulk orders and urgent customized demands

• Professional one-stop foreign trade service, covering inquiry, technical docking, packaging customization, and global logistics

Feel free to contact us for the latest quotation, detailed impurity analysis reports, or free MSDS/COA documents.