scholarly journals A DESCRIPTION OF IMPROVED APPARATUS AND OF A MODIFICATION OF DREHSCHMIDT'S METHOD FOR THE DETERMINATION OF TOTAL SULPHUR IN COAL GAS.1

1906 ◽  
Vol 28 (4) ◽  
pp. 537-541
Author(s):  
Everhart Percy Harding
Keyword(s):  
Coal Gas ◽  
Total Sulphur

Studies on the ionization produced by metallic salts in flames I. The determination of the collision frequency of electrons in coal-gas/air flames

1950 ◽  
Vol 201 (1067) ◽  
pp. 480-488 ◽  
Keyword(s):  
Conversion Factor ◽  
Collision Frequency ◽  
Metal Salt ◽  
Alkali Metal Salt ◽  
Electron Content ◽  
Radio Waves ◽  
Coal Gas ◽  
Flame Ionization ◽  
Metallic Salts

As an introduction to the study of reactions contingent on ionization in flames, an experimental measurement has been made of the collision frequency of electrons with molecules in coal-gas/air flames, containing added alkali metal salt. This quantity is an important parameter in the expression relating the electron content of a flame with the attenuation of centimetric radio waves by it. This attenuation has been chosen as a convenient method of investigating flame ionization. The form of the results obtained agree well with the predictions of theory, a uniform difference of about 20 % between measured collision frequency and that calculated on a very simple gas kinetic hypothesis being obtained. A suitable conversion factor has been evolved for proceeding from attenuation of 3 cm. waves to electron concentration/cm. 3 .

Determination of total sulphur in naphthas

The Analyst ◽  
1977 ◽  
Vol 102 (1215) ◽  
pp. 414 ◽  
Author(s):  
T. Fernández ◽  
J. M. Rocha ◽  
N. Rufino ◽  
A. García Luis
Keyword(s):  
Total Sulphur

scholarly journals The determination of total sulphur in India rubber

1912 ◽  
Vol 8 (3) ◽  
pp. 445 ◽  
Author(s):  
C.E. Waters ◽  
J.B. Tuttle
Keyword(s):  
Total Sulphur

scholarly journals Sulphur status in Finnish cultivated soils

1973 ◽  
Vol 45 (2) ◽  
pp. 121-215
Author(s):  
Johan Korkman
Keyword(s):  
Ammonium Acetate ◽  
Induction Furnace ◽  
Soil Samples ◽  
Total Sulphur ◽  
Sulphate Sulphur ◽  
Close Relationship ◽  
Mineral Soils ◽  
Sulphur Uptake ◽  
Cultivated Soils

A method for determining total sulphur in plant material and soil samples using the induction furnace technique and subsequent turbidimetric determination of sulphate sulphur was discussed. A procedure for extracting sulphur from soil samples with ammonium acetate (pH 4.65), the interference of the organic matter being reduced by oxidation of the extract with H2O2, was proposed. Sulphur balance in Finnish cultivated soils was estimated by taking into account the average amounts of emitted (8 kg S/ha/yr.), precipitated (8 kg S/ha/yr.) and leached (8 kg S/ha/yr.) sulphur. The actual situation in the cultivated soils seems thus to be depending, on an average, on the uptake by plants and the sulphur applied (12 kg S/ha/yr. in the early 1970s). In 104 samples of cultivated soil, the content of total sulphur showed a slight correlation with the content of organic carbon. The amounts of sulphur extracted in various ways were not predictable by means of the soil characteristics used (pHCaCl2, org. C and texture). Extracted sulphur did not correlate sufficiently with the development and sulphur uptake of plants. Under field conditions in northern Finland, sulphur application produced a relatively distinct result in respect both to the ley yields on Carex peat, and their sulphur content. On mineral soils in southern Finland the yields were unaffected by supplementary fertilization with sulphur. In the pot experiments performed a fairly close relationship between sulphur and nitrogen was demonstrated.

Accuracy and sensitivity of the potentiometric determination of total sulphur in petroleum

The Analyst ◽  
1990 ◽  
Vol 115 (1) ◽  
pp. 57 ◽  
Author(s):  
Sabri M. Farroha ◽  
Albertine E. Habboush
Keyword(s):  
Potentiometric Determination ◽  
Total Sulphur

Determination of free and total sulphur dioxide in wine by use of an amalgamated piezoelectric sensor

2005 ◽  
Vol 535 (1-2) ◽  
pp. 65-72 ◽  
Author(s):  
B. Palenzuela ◽  
B.M. Simonet ◽  
A. Ríos ◽  
M. Valcárcel
Keyword(s):  
Sulphur Dioxide ◽  
Piezoelectric Sensor ◽  
Total Sulphur
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