ABSOLUTE DETERMINATION OF ELECTROLYTIC CONDUCTIVITY FOR PRIMARY STANDARD KCL SOLUTIONS FROM 0-DEGREES-C TO 50-DEGREES-C

被引：79

作者：

WU, YC ^{[1
]}

KOCH, WF ^{[1
]}

机构：

[1] NATL INST STANDARDS & TECHNOL,CTR ANALYT CHEM,GAITHERSBURG,MD 20899

来源：

JOURNAL OF SOLUTION CHEMISTRY | 1991年 / 20卷 / 04期

关键词：

CELL CONSTANT; CONDUCTANCE; DEMAL; ELECTROLYTIC CONDUCTIVITY; POTASSIUM CHLORIDE; PRIMARY STANDARDS; RESISTANCE; SPECIFIC CONDUCTANCE;

D O I：

10.1007/BF00650765

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An absolute determination of aqueous electrolytic conductivity has been made for primary standards 0.01D and 0.1D (demal) potassium chloride solutions over the temperature range of 0 to 50-degrees-C in 5 degree intervals. A cell with a removable center section of accurately known length and area was used for the measurements. Values were adjusted to be in conformity with the ITS-90 temperature scale. The overall uncertainty over the entire temperature range is estimated to be 0.03%. Values at 25-degrees-C for 0.01D and 0.1D KCl solutions are 0.0014086 and 0.012852 S-cm-1, respectively.

引用

页码：391 / 401

页数：11

共 7 条

[1] PROPERTIES OF ELECTROLYTIC SOLUTIONS .47. CONDUCTANCE OF SOME QUATERNARY AMMONIUM AND OTHER SALTS IN WATER AT LOW CONCENTRATION [J].

DAGGETT, HM ;

BAIR, EJ ;

KRAUS, CA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1951, 73 (02) :799-803

[2]

JUHASZ E, 1981, PURE APPL CHEM, V53, P1844

[3]

Robinson R. A., 1959, ELECTROLYTE SOLUTION

[4] DETERMINATION OF THE ABSOLUTE SPECIFIC CONDUCTANCE OF PRIMARY STANDARD KCL SOLUTIONS [J].

WU, YC ;

PRATT, KW ;

KOCH, WF .

JOURNAL OF SOLUTION CHEMISTRY, 1989, 18 (06) :515-528

[5] REVIEW OF ELECTROLYTIC CONDUCTANCE STANDARDS [J].

WU, YC ;

KOCH, WF ;

HAMER, WJ ;

KAY, RL .

JOURNAL OF SOLUTION CHEMISTRY, 1987, 16 (12) :985-997

[6]

1989, M BUREAU INT POIDS M

[7]

1980, 56 INT ORG LEG METR

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