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PB212481

Publication Date	1972
Personal Author	Briggs, T. C.; Howard, A. R.
Page Count	200
Abstract	A special-pressure Burnett-type compressibility apparatus was constructed and used to determine compressibility factors for pure helium, pure nitrogen, and nine helium-nitrogen mixtures containing 89.47, 79.04, 69.69, 60.09, 49.24, 41.02, 30.99, 20.53, and 10.67 mole percent helium. A total of 161 runs were made, consisting of 2,355 observed pressures. Data were obtained at 0, 25, and 50C and at pressures to 1,000 atmospheres. A power series in the reciprocal volume (commonly called a Leiden series) is used to represent the compressibility factors. Three parameters in the series are required to represent helium, five parameters for nitrogen, and from three to five parameters for the mixtures. Compressibility factors are believed to be accurate to better than 0.1 percent over the entire pressure, temperature, and composition range. (Author)
Keywords	Helium Nitrogen Compressibility Mixtures High pressure tests Temperature Tables(Data)
Source Agency	Invalid Source Agency Code
NTIS Subject Category	99F - Physical & Theoretical Chemistry
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared in cooperation with Helium Research Center, Amarillo, Tex. Paper copy available from GPO $2.00 as I28.23:7639.
Document Type	Technical Report
Title Note	Report of investigations.
NTIS Issue Number	197224

Compressibility Data for Helium, Nitrogen, and Helium-Nitrogen Mixtures at 0, 25, and 50C and at Pressures to 1,000 Atmospheres.

Compressibility Data for Helium, Nitrogen, and Helium-Nitrogen Mixtures at 0, 25, and 50C and at Pressures to 1,000 Atmospheres.
PB212481

Publication Date	1972
Personal Author	Briggs, T. C.; Howard, A. R.
Page Count	200
Abstract	A special-pressure Burnett-type compressibility apparatus was constructed and used to determine compressibility factors for pure helium, pure nitrogen, and nine helium-nitrogen mixtures containing 89.47, 79.04, 69.69, 60.09, 49.24, 41.02, 30.99, 20.53, and 10.67 mole percent helium. A total of 161 runs were made, consisting of 2,355 observed pressures. Data were obtained at 0, 25, and 50C and at pressures to 1,000 atmospheres. A power series in the reciprocal volume (commonly called a Leiden series) is used to represent the compressibility factors. Three parameters in the series are required to represent helium, five parameters for nitrogen, and from three to five parameters for the mixtures. Compressibility factors are believed to be accurate to better than 0.1 percent over the entire pressure, temperature, and composition range. (Author)
Keywords	Helium Nitrogen Compressibility Mixtures High pressure tests Temperature Tables(Data)
Source Agency	Invalid Source Agency Code
NTIS Subject Category	99F - Physical & Theoretical Chemistry
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared in cooperation with Helium Research Center, Amarillo, Tex. Paper copy available from GPO $2.00 as I28.23:7639.
Document Type	Technical Report
Title Note	Report of investigations.
NTIS Issue Number	197224