Hydrogen H2

Hydrogen H2 CAS No.: 1333-74-0 EINECS No.: 215-605-7 UN No.: UN1049 Purity: 99.995%-99.999% Dot Class: 2.1 Appearance: Colorless, flammable, odorless gas. Grade Standard: Industrial Grade, Medical Grade, Electronic Grade. TYHJ focuses on Industrial Gases development, including Oxygen, Fire Extinguishers Carbon Dioxide, CO2, SO2, H2, N2.