Description

Hydrogen CAS NO 1333-74-0 is the simplest and most abundant element in the universe, existing as a colorless, odorless, and highly flammable diatomic gas. It serves as a critical feedstock and energy carrier across numerous high-value industrial sectors, prized for its reactivity and clean-burning properties. This essential gas is indispensable for companies in petroleum refining, chemical synthesis, electronics manufacturing, and the emerging clean energy economy.

Application

• Petroleum Refining: Used in hydrocracking and hydrotreating processes to remove sulfur and other impurities from crude oil, producing cleaner fuels.
• Chemical Manufacturing: A primary feedstock for the production of ammonia (via the Haber-Bosch process), methanol, and various hydrogenation reactions in fine chemical synthesis.
• Metal Processing & Annealing: Employed as a protective atmosphere in heat treating and annealing of metals to prevent oxidation and decarburization.
• Electronics Industry: Used as a carrier gas and reducing atmosphere in the manufacture of semiconductors and flat-panel displays.
• Energy & Fuel Cells: Acts as a zero-emission fuel for hydrogen fuel cells in transportation and stationary power applications.
• Food & Beverage: Used to hydrogenate unsaturated fats and oils in the production of margarine, shortening, and other food products.
• Analytical & Laboratory Use: Serves as a fuel gas for flame ionization detectors (FID) in gas chromatography and other analytical instruments.
• Glass & Float Glass Manufacturing: Provides a reducing atmosphere during production to ensure high clarity and quality.

Basic Information

Product Name	Hydrogen
CAS No.	1333-74-0
Molecular Formula	H₂
Molecular Weight	2.016 g/mol
Synonyms	Dihydrogen; Molecular Hydrogen; Protium; Hydrogen Gas; H₂; Refinery Hydrogen; Fuel Cell Grade Hydrogen; Welding Hydrogen; UN1049; UN1966
EINECS	215-605-7

Quality Control

Our hydrogen is produced and handled under stringent quality management systems to ensure consistent purity and performance for your critical processes. We supply various grades, including Industrial Grade, High Purity Grade, and Ultra-High Purity Grade, each meeting relevant industry specifications. Certificates of Analysis (COA) detailing purity, moisture, and impurity levels are provided with every shipment to guarantee supply reliability and specification compliance.

Storage

Store in approved, dedicated high-pressure gas cylinders or bulk storage systems in a well-ventilated, cool, dry, and fire-resistant area, away from direct sunlight, heat sources, and oxidizers. Cylinders must be securely fastened and kept with valve caps in place when not in use. Storage areas must be clearly marked and comply with all local and national regulations for flammable gases. Due to its highly volatile and flammable nature, ensure all equipment is grounded to prevent static discharge.

Specification

Item	Specification
Appearance	Colorless Gas
Odor	Odorless
Assay (H₂)	≥ 99.9% - 99.9999%
Oxygen (O₂)	≤ 5 ppmv
Nitrogen (N₂)	≤ 10 ppmv
Moisture (H₂O)	≤ 3 ppmv
Total Hydrocarbons (as CH₄)	≤ 1 ppmv
Carbon Monoxide (CO)	≤ 1 ppmv
Carbon Dioxide (CO₂)	≤ 1 ppmv

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.