Bulk Hydrogen

BOC's typical standard grade hydrogen meets or exceeds Compressed Gas Association (CGA) specifications listed below (higher grades are available for electronics manufacturing and other applications requiring ultra-high purities).

	GAS	LIQUID
Hydrogen min % (v/v)	99	99.995
Impurity (ppm) (v/v
Water	32	9.0
Oxygen	10	1.0
Argon		Included w/oxygen
Nitrogen	400	Included w/water
Total Hydrocarbons	10	Included w/water
Carbon Dioxide	10	1.0
Carbon Monoxide	10	Included W/C02

About Hydrogen

Colorless, odorless, flammable and nontoxic, hydrogen is the lightest gas known to man. Although it is widely known as a rocket fuel, hydrogen is used extensively in industrial applications such as chemicals, controlled atmospheres, glass, and electronics.The chemical industry uses hydrogen in chemical synthesis where it is used to react with other substances to produce a broad range of chemical intermediates. It is also used to hydrogenate oils and fatty acids in the production of food products, lubricants, and cleaning products. In controlled atmospheres, hydrogen is used to improve the properties in heat treating, annealing, sintering, and brazing operations. It is used by the glass industry in the float glass manufacturing process as a reducing agent in tin bath atmospheres, and in the electronics industry as a carrier gas in the manufacture of semiconductor chips and polysilicone. Because of its excellent conductive properties, hydrogen is used by public utilities in the transfer of heat and to control corrosion in nuclear reactors.

Production and Distribution Network

Hydrogen gas is produced predominantly from the reformation of hydrocarbon feeds or the splitting of water molecules. BOC Gases uses both methods to produce its hydrogen supply.

Hydrogen is collected at central supply points and distributed in both gaseous and liquid forms from ten ISO certified BOC supply locations throughout North America. A fleet of more than 200 trailers ensures timely delivery anywhere on the continent.

BOC's National Scheduling Center in Bethlehem, Pennsylvania, is staffed with highly trained professionals who are available 24-hours a day, 7-days a week to accommodate both scheduled and emergency deliveries. Our unique TELTank' telemetry system enables BOC and our customers to remotely monitor product levels, ensuring timely deliveries.

Customer Service

Our state-of-the-art Customer Service Center in Lebanon, New Jersey, operates around the clock to support customer inquiries and requests. For questions about billing, delivery, account inquiries, cylinder orders or technical assistance, call 1-800BOC-Gases, or fax 1-800-BOC-Fax8.

Service And Engineering Support

BOC Gases employs hundreds of service specialists and engineers at customer service centers in dozens of cities nationwide.

We can custom-tailor a hydrogen supply method based on volume, purity, pressure, power costs and other key parameters. Our engineers can design, engineer, install and maintain the most efficient, cost-effective supply solution for your specific application. In addition, BOC Gases offers a wide range of equipment and systems designed to enhance productivity at the point where hydrogen is delivered and used in your process. For details, contact BOC Gases today.

Physical Properties

Physical properties refer to normal (75% ortho 25% para) hydrogen
Molecular Weight		2.01594
Color
....Vapor		None
....Liquid		None
Normal Boiling Point		-423.0°F
Heat of Vaporization		191.7 BTU/Ib
Specific Heat (Const. Press, @ 77°F)		3.4202 BTU/Ib
Specific Volume (70°F, I Atm)		192 ft3/ lb
Specific Gravity (70°F, I Atm) (air= 1)		0.0695